Linux 802.11n CSI Tool

Overview | Publications | Users | Credits
GitHub | Installation Instructions | FAQ | Get Help


Picture of IWL5300 wireless NIC
An Intel 5300 NIC

This webpage contains instructions to use our 802.11n measurement and experimentation platform. The CSI Tool is built on the Intel Wi-Fi Wireless Link 5300 802.11n MIMO radios, using a custom modified firmware and open source Linux wireless drivers. We include all the software and scripts needed to run experiments, and to read and parse the channel measurements.

The IWL5300 provides 802.11n channel state information in a format that reports the channel matrices for 30 subcarrier groups, which is about one group for every 2 subcarriers at 20 MHz or one in 4 at 40 MHz. Each channel matrix entry is a complex number, with signed 8-bit resolution each for the real and imaginary parts. It specifies the gain and phase of the signal path between a single transmit-receive antenna pair.

There is more information in our tool release announcement below.

Channel state information for four 1x1 links
Example CSI for 4 SISO links



More than our own work, we are excited about others using our platform to advance the state of the art. We are proud to list the following published papers using our tools and data.

  1. Kamran Ali, Alex X. Liu, Wei Wang, and Muhammad Shahzad.
    Recognizing Keystrokes Using WiFi Devices. IEEE J. Selected Areas in Communication, vol. 35, no. 5, May 2017.
  2. Sheheryar Arshad, Chunhai Feng, Yonghe Liu, Yupeng Hu, Ruiyun Yu, Siwang Zhou, Heng Li.
    Wi-Chase: A WiFi based Human Activity Recognition System for Sensorless Environments. IEEE WoWMoM 2017.
  3. Jen-Yin Chang, Kuan-Ying Lee, Yu-Lin Wei, Kate Ching-Ju Lin, and Winston Hsu.
    We Can “See” You via Wi-Fi — WiFi Action Recognition via Vision-based Methods. arXiv cs.CV 2017.
  4. Kun Qian, Chenshu Wu, Zheng Yang, Yunhao Liu, and Kyle Jamieson.
    Widar: Decimeter-Level Passive Tracking via Velocity Monitoring with Commodity Wi-Fi. ACM MobiHoc 2017.
  5. Giovanni Escudero, Jun Gyu Hwang, and Joon Goo Park.
    An Indoor Positioning Method using IEEE 802.11 Channel State Information. IEEE J. Elec. Eng. & Tech., vol. 12, no. 3, 2017.
  6. Chunhai Feng, Sheheryar Arshad, and Yonghe Liu.
    MAIS: Multiple Activity Identification System Using Channel State Information of WiFi Signals. Wireless Algorithms, Systems, and Applications (WASA) 2017.
  7. Wei Gong and Jiangchuan Liu.
    Robust Indoor Wireless Localization Using Sparse Recovery. IEEE ICDCS 2017.
  8. Juan He, Yue Hu, Xinyan Liu, Chen Liu, Yao Peng, and Xianjia Meng.
    LiReT: An Fine-Grained Self-Adaption Device-Free Localization with Little Human Effort. IEEE SMARTCOMP 2017.
  9. Xudong Huang, Songtao Guo, Yan Wu, and Yuanyuan Yang.
    A fine-grained indoor fingerprinting localization based on magnetic field strength and channel state information. Pervasive and Mobile Computing, vol. 41, Oct. 2017.
  10. Sangyoun Lee, Seokseong Jeon, Young Deok Park, and Young-Joo Suh.
    Detection of Breathing and Heart-Rate Pattern Change Using Off-the-shelf WiFi Devices. J. of Korean Institute of Communications and Information Sciences, vol. 42, no. 8, 2017.
  11. Shengjie Li, Xiang Li, Kai Niu, Hao Wang, Yue Zhang, and Daqing Zhang.
    AR-Alarm: An Adaptive and Robust Intrusion Detection System Leveraging CSI from Commodity Wi-Fi. Intl. Conf. Smart Homes and Health Telematics (ICOST) 2017.
  12. Xiaohai Li, Yiqiang Chen, Zhongdong Wu, Xiaohui Peng, Jindong Wang, Lisha Hu, and Diancun Yu.
    Weak multipath effect identification for indoor distance estimation. 2017.
  13. Hongbo Liu, Yan Wang, Jian Liu, Jie Yang, Yingying Chen, and Vincent Poor.
    Authenticating Users through Fine-grained Channel Information. IEEE Trans. Mobile Computing (TMC), 2017.
  14. Hongjiang Lyu, Linghe Kong, Chengzhang Li, Yunxin Liu, Jiansong Zhang, and Guihai Chen.
    BikeLoc: a Real-time High-Precision Bicycle Localization System Using Synthetic Aperture Radar. ACM Asia-Pacific Workshop on Networking (APNet) 2017.
  15. Sang-Chul Kim.
    Device-free Activity Recognition Using CSI & Big Data Analysis: A Survey. IEEE Ubiquitous and Future Networks (ICUFN), 2017.
  16. Manikanta Kotaru and Sachin Katti.
    Position Tracking for Virtual Reality using Commodity WiFi. arXiv cs.CV 2017.
  17. Yongsen Ma, Gang Zhou, and Shan Lin.
    EliMO: Eliminating Channel Feedback from MIMO. IEEE SMARTCOMP 2017.
  18. Mohamed Naoufal Mahfoudi, Thierry Turletti, Thierry Parmentelat, and Walid Dabbous.
    Lessons Learned while Trying to Reproduce the OpenRF Experiment. ACM SIGCOMM Reproducibility Workshop (Reproducibility) 2017.
  19. Kazuya Ohara, Taisei Hayashi, Takuya Maekawa, and Yasuyuki Matsushita.
    Metric Structure from Motion by Indoor Localization using Wi-Fi Channel State Information. IEEE Intl. Conf. Mechanics and Automation (ICMA) 2017.
  20. Na Pang, Dali Zhu, Kaiwen Xue, Wenjing Rong, Yinlong Liu, and Changhai Ou.
    Analyzing Customer’s Product Preference Using Wireless Signals. Knowledge Science, Engineering, and Management (KSEM) 2017.
  21. Kun Qian, Chenshu Wu, Zimu Zhou, Yue Zheng, Zheng Yang, and Yunhao Liu.
    Inferring Motion Direction using Commodity Wi-Fi for Interactive Exergames. CHI 2017.
  22. Syed Aziz Shah, Zhiya Zhang, Aifeng Ren, Nan Zhao, Xiaodong Yang, Wei Zhao, Jie Yang, Jianxun Zhao, Wanrong Sun and Yang Hao.
    Buried Object Sensing Considering Curved Pipeline. IEEE Antennas and Wireless Propagation Letters, 2017.
  23. Muhammad Shahzad and Munindar P. Singh.
    Continuous Authentication and Authorization for the Internet of Things. IEEE Internet Computing, vol. 21, no. 2, March-April 2017.
  24. Jiacheng Shang and Jie Wu.
    A Robust Sign Language Recognition System with Multiple Wi-Fi Devices. ACM MobiArch 2017.
  25. Cong Shi, Jian Liu, Hongbo Liu, and Yingying Chen.
    Smart User Authentication through Actuation of Daily Activities Leveraging WiFi-enabled IoT. ACM MobiHoc 2017.
  26. Elahe Soltanaghaei, Avinash Kalyanaraman, and Kamin Whitehouse.
    Peripheral WiFi Vision: Exploiting Multipath Reflections for More Sensitive Human Sensing. ACM Workshop on Physical Analytics (WPA) 2017.
  27. Zhenyu Song, Longfei Shangguan, and Kyle Jamieson.
    Wi-Fi Goes to Town: Rapid Picocell Switching for Wireless Transit Networks. ACM SIGCOMM 2017.
  28. F. Viani, A. Polo, E. Giarola, M. Salucci, and A. Massa.
    Principal component analysis of CSI for the robust wireless detection of passive targets. IEEE ACES 2017.
  29. Aditya Virmani and Muhammad Shahzad.
    Position and Orientation Agnostic Gesture Recognition Using WiFi. ACM MobiSys 2017.
  30. Hao Wang, Daqing Zhang, Kai Niu, Qin Lv, Yuanhuai Liu, Dan Wu, Ruiyang Gao, and Bing Xie.
    MFDL: A Multicarrier Fresnel Penetration Model based Device-Free Localization System leveraging Commodity Wi-Fi Cards. arXiv cs.NI 2017.
  31. Hao Wang, Daqing Zhang, Yasha Wang, Junyi Ma, Yuxiang Wang, and Shengjie Li.
    RT-Fall: A Real-Time and Contactless Fall Detection System with Commodity WiFi Devices. IEEE Trans. Mobile Computing, vol. 16, no. 2, February 2017.
  32. Wei Wang, Alex X. Liu, Muhammad Shazad, Kang Ling, and Sanglu Lu.
    Device-free Human Activity Recognition Using Commercial WiFi Devices. IEEE J. Selected Areas in Communication, vol. PP, no. 99, March 2017.
  33. Xuyu Wang, Lingjun Gao, and Shiwen Mao.
    BiLoc: Bi-Modal Deep Learning for Indoor Localization With Commodity 5GHz WiFi. IEEE ACCESS, vol. 5, March 2017.
  34. Xuyu Wang, Lingjun Gao, Shiwen Mao, and Santosh Pandey.
    CSI-Based Fingerprinting for Indoor Localization: A Deep Learning Approach. IEEE Trans. Vehicular Technology, vol. 66, no. 1, Jan 2017.
  35. Xuyu Wang, Chao Yang, and Shiwen Mao.
    PhaseBeat: Exploiting CSI Phase Data for Vital Sign Monitoring with Commodity WiFi Devices. IEEE ICDCS 2017.
  36. Xuyu Wang, Chao Yang, and Shiwen Mao.
    TensorBeat: Tensor Decomposition for Monitoring Multi-Person Breathing Beats with Commodity WiFi. arXiv cs.CE 2017.
  37. Zhefu Wu, Qiang Xu, Jianan Li, Chenbo Fu, Qi Xuan, and Yun Xiang.
    Passive Indoor Localization Based on CSI and Naive Bayes Classification. IEEE Trans. Systems, Man, and Cybernetics, vol. PP, No. 99, April 2017.
  38. Yalong Xiao, Jianxin Wang, Shigeng Zhang, Haodong Wang, and Jiannong Cao.
    Accurate Indoor Localization with Multiple Feature Fusion. Wireless Algorithms, Systems, and Applications (WASA) 2017.
  39. Hao Yang, Hua Xu, and Keming Tang.
    WiHumo: a real-time lightweight indoor human motion detection. Intl. J. Sensor Networks, Vol. 24, No. 2, 2017.
  40. Hao Yang, Licai Zhu, and Weipeng Lv.
    A HCI Motion Recognition System Based on Channel State Information with Fine Granularity. Wireless Algorithms, Systems, and Applications (WASA) 2017.
  41. Siamak Yousefi, Hirokazu Narui, Sankalp Dayal, Stefano Ermon, and Shahrokh Valaee.
    A Survey on Behaviour Recognition Using WiFi Channel State Information. arXiv cs.AI 2017.
  42. Hongli Yu, Guilin Chen, Shenghui Zhao, and Chih-Yung Chang.
    A Passive Localization Scheme Based on Channel State Information in an Indoor Environment. IEEE Advanced Information Networking and Applications Workshops (WAINA), March 2017.
  43. Xi Zeng, Wei Lin, and Jingwei Lan.
    Based on the CSI regional segmentation indoor localization algorithm. American Institute of Physics (AIP) Conference Proceedings 2017.
  44. Yunze Zeng, Ioannis Pefkianakis, Kyu-Han Kim, and Prasant Mohapatra.
    MU-MIMO-Aware AP Selection for 802.11ac Networks. ACM MobiHoc 2017.
  45. Daping Zhang, Hao Wang, and Dan Wu.
    Toward Centimeter-Scale Human Activity Sensing with Wi-Fi Signals. IEEE Computer, vol. 50, no. 1, January 2017.
  46. Lei Zhang, Enjie Ding, Zhikai Zhao, Yanjun Hu, Xin Wang, and Kai Zhang.
    A novel fingerprinting using channel state information with MIMO–OFDM . Cluster Computing, Springer US, 2017.
  47. Linsheng Zhao, Hongpeng Wang, Pengpeng Li, and Jingtai Liu.
    An Improved WiFi Indoor Localization Method Combining Channel State Information and Received Signal Strength. IEEE Chinese Control Conference (CCC) 2017.
  48. Qizhen Zhou, Chenshu Wu, Jianchun Xing, Juelong Li, Zheng Yang, and Qiliang Yang.
    Wi-Dog: Monitoring School Violence with Commodity WiFi Devices. Wireless Algorithms, Systems, and Applications (WASA) 2017.
  49. Rui Zhou, Jiesong Chen, Xiang Lu and Jia Wu.
    CSI Fingerprinting with SVM Regression to Achieve Device-free Passive Localization. IEEE WoWMoM 2017.
  50. Dali Zhu, Na Pang, Weimiao Feng, Muhmmad Al-Khiza'ay, and Yuchen Ma.
    Device-Free Intruder Sensing Leveraging Fine-Grained Physical Layer Signatures. Knowledge Science, Engineering, and Management (KSEM) 2017.
  51. Dali Zhu, Na Pang, Gang Li, and Shaowu Liu.
    NotiFi: A ubiquitous WiFi-based abnormal activity detection system. IEEE Intl. Joint Conf. on Neural Networks (IJCNN) 2017.
  52. Hai Zhu, Fu Xiao, Lijuan Sun, Ruchuan Wang, and Panlong Yang.
    R-TTWD: Robust Device-free Through-The-Wall Detection of Moving Human with WiFi. IEEE J. Selected Areas in Communication, vol. PP, no. 99, March 2017.
  53. Hai Zhu, Fu Xiao, Lijuan Sun, Xiaohui Xie, Panlong Yang, and Ruchuan Wang.
    Robust and passive motion detection with COTS WiFi devices. Tsinghua Science and Technology, vol. 22 no. 4, August 2017.
  54. Yiwei Zhuo, Hongzi Zhu, Hua Xue, and Shan Chang.
    Perceiving Accurate CSI Phases with Commodity WiFi Devices. IEEE INFOCOM, 2017.
  55. Yongpan Zou, Yuxi Wang, Shufeng Ye, Kaishun Wu, and Lionel M. Ni.
    TagFree: Passive Object Differentiation via Physical Layer Radiometric Signatures. IEEE PERCOM, 2017.
  56. Mohammed Abdulaziz Aide Al-qaness and Fangmin Li.
    WiGeR: WiFi-Based Gesture Recognition System. ISPRS J. Geo-Inf, vol. 5, no. 6, June 2016.
  57. Mohammed Abdulaziz Aide Al-qaness, Fangmin Li, Xiaolin Ma, and Guo Liu.
    Device-Free Home Intruder Detection and Alarm System Using Wi-Fi Channel State Information. Intl. J. Future Computer and Communication, vol. 5, no. 4, August 2016.
  58. Mohammed Abdulaziz Aide Al-qaness, Fangmin Li, Xiaolin Ma, Yong Zhang, and Guo Liu.
    Device-Free Indoor Activity Recognition System. Applied Sciences, vol. 6, no. 11, November 2016.
  59. Ibrahim Ethem Bagci.
    Novel Security Mechanisms for Wireless Sensor Networks. Ph.D. Thesis, Lancaster University 2016.
  60. Christian Brauers, Wolfgang Endemann, and Rüdiger Kays.
    Augmenting OFDM wireless local networks with motion detection capability. IEEE ICCE-Berlin 2016.
  61. Jen-Yin Chang, Kuan-Ying Lee, Kate Ching-Ju Lin, and Winston Hsu.
    WiFi action recognition via vision-based methods. IEEE ICASSP 2016.
  62. Sankalp Dayal, Hirokazu Narui, and Paraskevas Deligiannis.
    Human Fall Detection in Indoor Environments Using Channel State Information of Wi-Fi Signals. CS229, Stanford University 2016.
  63. Simone Di Domenico, Mauro De Sanctis, Ernestina Cianca, and Giuseppe Bianchi.
    A Trained-once Crowd Counting Method Using Differential WiFi Channel State Information. ACM MobiSys Workshop on Physical Analytics 2016.
  64. Simone Di Domenico, Giovanni Pecoraro, Ernestina Cianea, and Mauro De Sanctis.
    Trained-once device-free crowd counting and occupancy estimation using WiFi: A Doppler spectrum based approach. IEEE WiMob 2016.
  65. Biyi Fang, Nicholas D. Lane, Mi Zhang, Aidan Boran, and Fahim Kawsar.
    BodyScan: Enabling Radio-based Sensing on Wearable Devices for Contactless Activity and Vital Sign Monitoring. ACM MobiSys 2016.
  66. Biyi Fang, Nicholas D. Lane, Mi Zhang, and Fahim Kawsar.
    HeadScan: A Wearable System for Radio-Based Sensing of Head and Mouth-Related Activities. IEEE IPSN 2016.
  67. Ethan D. Gaebel.
    Looks Good to Me: Authentication for Augmented Reality. M.S. Thesis, Virginia Polytechnic Institute and State University 2016.
  68. Ethan D. Gaebel, Ning Zhang, Wenjing Lou, and Y. Thomas Hou.
    Looks Good to Me: Authentication for Augmented Reality. Intl. Workshop on Trustworthy Embedded Devices 2016.
  69. Liangyi Gong, Wu Yang, Zimu Zhou, Dapeng Man, Haibin Cai, Xiancun Zhou, and Zheng Yang.
    An adaptive wireless passive human detection via fine-grained physical layer information. Ad Hoc Networks, vol. 38, 1 March 2016.
  70. Liangyi Gong, Wu Yang, Dapeng Man, and Jiguang Lv.
    iPil: improving passive indoor localisation via link-based CSI features. Intl. J. Ad Hoc and Ubiquitous Computing 2016.
  71. Mahanth Gowda, Ashutosh Dhekne, and Romit Roy Choudhury.
    The Case for Robotic Wireless Networks. WWW 2016.
  72. Sebastian Henningsen, Stefan Dietzel, and Björn Scheuermann.
    Attack Detection in Wireless Networks Using Channel State Information. Proc. 2nd GI Expert Talk on Localization, RWTH Aachen 2016.
  73. Feng Hong, Xiang Wang, Yanni Yang, Yuan Zong, and Zhongwen Guo.
    WFID: Passive Device-free Human Identification Using WiFi Signal. ACM MOBIQUITOUS 2016.
  74. Chitra Javali, Girish Revadigar, Kasper B. Rasmussen, Wen Hu, and Sanjay Jha.
    I Am Alice, I Was in Wonderland: Secure Location Proof Generation and Verification Protocol. IEEE Local Computer Networks 2016.
  75. Muhammad O Khan and Lili Qiu.
    Accurate WiFi packet delivery rate estimation and applications. IEEE INFOCOM 2016.
  76. Young-Han Kim, Hyun-Seok Ahn, Chanseok Yoon, Yongseok Lim, and Seung-ok Lim.
    Development of zero-energy communication sensor tag system using ambient Wi-Fi signal. IEEE SENSORS 2016.
  77. Swarun Kumar.
    Pushing the Limits of Wireless Networks. Ph.D. Thesis, MIT 2016.
  78. Bing Li, Shengkai Zhang, and Shaojie Xhen.
    CSI-Based WiFi-Internal State Estimation. IEEE Intl. Conf. Multisensor Fusion and Integration for Intelligent Systems 2016.
  79. Chu-Chen Li and Shih-Hau Fang.
    Device-free human detection using WiFi signals. IEEE Consumer Electronics 2016.
  80. Fangmin Li, Mohammed Abdulaziz Aide Al-qaness, Yong Zhang, Bihai Zhao, and Xidao Luan.
    A Robust and Device-Free System for the Recognition and Classification of Elderly Activities. Sensors, Vol 16., no. 12., December 2016
  81. Hong Li, Wei Yang, Jianxin Wang, Yang Xu, and Liusheng Huang.
    WiFinger: talk to your smart devices with finger-grained gesture. ACM UbiComp 2016.
  82. Hong Li, Wei Yang, Yang Xu, Jianxin Wang, and Liusheng Huang.
    A Real Time Wireless Interactive Multimedia System. Asia-Pacific Web Conference 2016.
  83. Hong Li, Wei Yang, Yang Xu, Jianxin Wang, and Liusheng Huang.
    WiCare: A Synthesized Healthcare Service System Based on WiFi Signals. Intl. Conf. Service-Oriented Computing 2016.
  84. Mengyuan Li, Yan Meng, Junyi Liu, Haojin Zhu, Xiaohui Liang, Yao Liu, and Na Ruan.
    When CSI Meets Public WiFi: Inferring Your Mobile Phone Password via WiFi Signals. ACM CCS 2016.
  85. Xiang Li, Shengjie Li, Daqing Zhang, Jie Xiong, Yasha Wang, and Hong Mei.
    Dynamic-MUSIC: accurate device-free indoor localization. ACM UbiComp 2016.
  86. Xuefeng Liu, Jiannong Cao, Shaojie Tang, Jiaqi Wen, and Peng Guo.
    Contactless Respiration Monitoring Via Off-the-Shelf WiFi Devices. IEEE Trans. Mobile Computing, October 2016.
  87. Jiguang Lv, Wu Yang, Liangyi Gong, Dapeng Man, and Xiaojiang Du.
    Robust WLAN-based Indoor Fine-grained Intrusion Detection. IEEE GLOBECOM 2016.
  88. Junyi Ma, Yuxiang Wang, Hao Wang, Yasha Wang, and Daqing Zhang.
    When can we detect human respiration with commodity wifi devices?. ACM ISWC 2016.
  89. Spence Madsen, Jordan Baczuk, Kurt Thorup, Richard Barton, Neal Patwari, and John T. Langell.
    A noncontact RF-based respiratory sensor: results of a clinical trial. J. Surgical Research, vol. 203, no. 1, June 2016.
  90. Avishek Mukherjee and Zhenghao Zhang.
    Channel State Information Compression for MIMO Systems Based on Curve Fitting. IEEE SECON 2016.
  91. Kun Qian, Chenshu Wu, Zheng Yang, Chaofan Yang, Yunhao Liu.
    Decimeter Level Passive Tracking with WiFi. ACM HotWireless 2016.
  92. Kun Qian, Chenshu Wu, Zheng Yang, Zimu Zhou, Xu Wang, and Yunhao Liu.
    Tuning by turning: Enabling phased array signal processing for WiFi with inertial sensors. IEEE INFOCOM 2016.
  93. Sameera Palipana, Piyush Agrawal, and Dirk Pesch.
    Channel State Information Based Human Presence Detection using Non-linear Techniques. ACM BuildSys 2016
  94. Swati Rallapalli, Wei Dong, Lili Qiu, and Yin Zhang.
    WaveLoc: Wavelet Signatures for Ubiquitous Localization. IEEE Mobile Ad Hoc and Sensor Systems (MASS) 2016
  95. Martin Schüssel.
    Angle of Arrival Estimation using WiFi and Smartphones. Intl. Conf. Indoor Positioning and Indoor Navigation 2016.
  96. Syed Aziz Shah, Nan Zhao, Aifeng Ren, Zhiya Zhang, Xiaodong Yang, Jie Yang, Wei Zhao.
    Posture Recognition to Prevent Bedsores for Multiple Patients Using Leaking Coaxial Cable. IEEE ACCESS vol. 4, 2016.
  97. Jiacheng Sheng and Jie Wu.
    Fine-grained Vital Signs Estimation Using Commercial Wi-Fi Devices. ACM MobiCom S3, 2016.
  98. Shuyu Shi, Stephan Sigg, and Yusheng Ji.
    Probabilistic Fingerprinting Based Passive Device-Free Localization from Channel State Information. IEEE VTC Spring 2016.
  99. Sheng Tan and Jie Yang.
    WiFinger: leveraging commodity WiFi for fine-grained finger gesture recognition. ACM MobiHoc 2016.
  100. Zengshan Tian, Ze Li, Mu Zhou, Yue Jin, and Zipeng Wu.
    PILA: Sub-Meter Localization Using CSI from Commodity Wi-Fi Devices. Sensors 2016.
  101. Deepak Vasisht, Swarun Kumar, and Dina Katabi.
    Decimeter-Level Localization with a Single WiFi Access Point. USENIX NSDI 2016.
  102. Chen Wang, Xiuyuan Zheng, Yingying Chen, and Jie Yang.
    Locating Rogue Access Point using Fine-grained Channel Information. IEEE Trans. Mobile Computing 2016.
  103. Ju Wang, Hongbo Jiang, Jie Xiong, Kyle Jamieson, Xiaojiang Chen, Dingyi Fang, and Binbin Xie.
    LiFS: Low Human-Effort, Device-Free Localization with Fine-Grained Subcarrier Information. ACM MobiCom 2016.
  104. Wei Wang, Yingjie Chen, Qian Zhang, and Tao Jiang.
    A software-defined wireless networking enabled spectrum management architecture. IEEE Communications Magazine, vol. 54, no. 1, January 2016.
  105. Wei Wang, Alex X. Liu, and Muhammad Shahzad.
    Gait Recognition Using WiFi Signals. ACM UbiComp 2016.
  106. Dan Wu, Daqing Zhang, Chenren Xu, Yasha Wang, and Hao Wang.
    WiDir: walking direction estimation using wireless signals. ACM UbiComp 2016.
  107. Kaishun Wu.
    Wi-metal: Detecting metal by using wireless networks. IEEE ICC 2016.
  108. Wei Xi, Chen Qian, Jinsong Han, Kun Zhao, Sheng Zhong, Xiang-Yang Li, and Jizhong Zhao.
    Instant and Robust Authentication and Key Agreement among Mobile Devices. ACM CCS 2016.
  109. Tong Xin, Bin Guo, Zhu Wang, Mingyang Li, and Zhiwen Yu.
    FreeSense:Indoor Human Identification with WiFi Signals. arXiv cs.HC 2016.
  110. Yunze Zeng, Parth H. Pathak, and Prasant Mohapatra.
    WiWho: WiFi-Based Person Identification in Smart Spaces. IEEE IPSN 2016.
  111. Jie Zhang, Xiaolong Zheng, Zhanyong Tang, Tianzhang Xing, Xiaojiang Chen, Dingyi Fang, Rong Li, Xiaoqing Gong, and Feng Chen.
    Privacy Leakage in Mobile Sensing: Your Unlock Passwords Can Be Leaked through Wireless Hotspot Functionality. Hindawi Mobile Information Systems 2016.
  112. Jin Zhang, Bo Wei, Wen Hu, Salii S. Kanhere, and Ariel Tan.
    Human identification using WiFi signal. IEEE PerCom 2016.
  113. Pengyu Zhang, Dinesh Bharadia, Kiran Joshi, and Sachin Katti.
    HitchHike: Practical Backscatter Using Commodity WiFi. ACM SenSys 2016.
  114. Xiang Zhang, Rukhsana Ruby, Jinfeng Long, Lu Wang, Zhong Ming, and Kaishun Wu.
    WiHumidity: A Novel CSI-Based Humidity Measurement System. Smart Computing and Communication 2016.
  115. Xiaolong Zheng, Jiliang Wang, Longfei Shangguan, Zimu Zhou, and Yunhao Liu.
    Smokey: Ubiquitous smoking detection with commercial WiFi infrastructures. IEEE INFOCOM 2016.
  116. Qizhen Zhou, Jianchun Xing, Juelong Li, and Qiliang Yang.
    A Device-free Number Gesture Recognition Approach Based on Deep Learning . IEEE Computational Intelligence and Security 2016.
  117. Dali Zhu, Na Pang, Gang Li, and Shaowu Liu.
    WiseFi: Activity Localization and Recognition on Commodity Off-the-shelf WiFi Devices. IEEE HPCC/SmartCity/DSS 2016.
  118. Yiwei Zhuo, Hongzi Zhu, and Hua Xue.
    Identifying a New Non-Linear CSI Phase Measurement Error with Commodity WiFi Devices. IEEE ICPADS 2016.
  119. Kamran Ali, Alex X. Liu, Wei Wang, and Muhammad Shahzad.
    Keystroke Recognition Using WiFi Signals. ACM MobiCom 2015.
  120. Ibrahim Ethem Bagci, Utz Roedig, Ivan Martinovic, Matthias Schulz, and Matthias Hollick.
    Using Channel State Information for Tamper Detection in the Internet of Things. ACSAC 2015.
  121. Xiong Cai, Xiaohui Li, Ruiyang Yuan, and Yongqiang Hei.
    Identification and mitigation of NLOS based on channel state information for indoor WiFi localization. IEEE Wireless Communications & &Signal Processing 2015.
  122. Yogita Chapre, Aleksandar Ignjatovic, Aruna Seneviratne, and Sanjay Jha.
    CSI-MIMO: An efficient Wi–Fi fingerprinting using Channel State Information with MIMO. Pervasive and Mobile Computing, July 2015.
  123. Lingjun Gao.
    Channel State Information Fingerprinting Based Indoor Localization: a Deep Learning Approach. Ph.D. Thesis, Auburn University, 2015.
  124. Liangyi Gong, Wu Yang, Dapeng Man, Guozhong Dong, Miao Yu, and Jiguang Lv.
    WiFi-Based Real-Time Calibration-Free Passive Human Motion Detection. Sensors 2015.
  125. Mahanth Gowda, Ashutosh Dhekne, Romit Roy Choudhury, and Srihari Nelakuditi.
    If WiFi APs Could Move: A Measurement Study. Technical Report, UIUC 2015.
  126. Wenfeng He, Kaishun Wu, Yongpan Zou, Zhong Ming.
    WiG: WiFi-Based Gesture Recognition System. IEEE ICCCN, 2015.
  127. A. S. M. Sanwar Hosen, Jong Seon Park and Gi Hwan Cho.
    Utilizing the Virtual Triangulation for Wireless Indoor Localization of Mobile Devices with Channel State Information. Intl. J. Multimedia and Ubiquitous Engineering, 2015.
  128. Chitra Javali, Girish Revadigar, Wen Hu, and Sanjay Jha.
    Poster: Were You in the Cafe Yesterday?: Location Proof Generation & Verification for Mobile Users. ACM SenSys 2015.
  129. Muhammad O Khan.
    Improving the Performance and Efficiency of Wireless Networks using Rate Adaptation. Ph.D. Thesis, University of Texas at Austin 2015.
  130. Muhammad O Khan, Lili Qiu, Apurv Bhartia, and Kate Ching-Ju Lin.
    Smart Retransmission and Rate Adaptation in WiFi. IEEE ICNP 2015.
  131. Manikanta Kotaru, Kiran Joshi, Dinesh Bharadia, and Sachin Katti.
    SpotFi: Decimeter Level Localization Using WiFi. ACM SIGCOMM 2015.
  132. Okhwan Lee, Weiping Sun, Jihoon Kim, Hyuk Lee, Bo Ryu, Jungwoo Lee, and Sunghyun Choi. nc
    ChASER: Channel-Aware Symbol Error Reduction for High-Performance WiFi Systems in Dynamic Channel Environment. IEEE INFOCOM 2015.
  133. Zan Li, Danilo Burbano Acuña, Zhongliang Zhao, Jose Luis Carrera, and Torsten Braun.
    Fine-grained Indoor Tracking by Fusing Inertial Sensor and Physical Layer Information in WLANs. Technischer Bericht INF-15-004 vom 22. December 2015.
  134. Zhenjiang Li, Wan Du, Yuanqing Zheng, Mo Li, Dapeng Wu. nc
    From Rateless to Hopless. ACM MobiHoc 2015.
  135. Zan Li, Torsten Braun, and Desislava C. Dimitrova.
    A Passive WiFi Source Localization System based on Fine-grained Power-based Trilateration. IEEE WoWMoM 2015.
  136. Jian Liu, Yan Wang, Yingying Chen, Jie Yang, Xu Chen, and Jerry Cheng.
    Tracking Vital Signs During Sleep Leveraging Off-the-shelf WiFi. ACM MobiHoc 2015.
  137. Wenyuan Liu, Xi Gao, Lin Wang, and Danyang Wang. nc
    Bfp: Behavior-Free Passive Motion Detection Using PHY Information. Wireless Personal Communications, February 2015.
  138. Bingxian Lu, Zhicheng Zeng, Lei Wang, Brian Peck, and Daji Qiao.
    Poster: Crowdsourced Location Aware Wi-Fi Access Control. ACM MobiCom 2015.
  139. Saurabh Maheshwari and Anil K. Tiwari.
    Walking parameters estimation through channel state information preliminary results. IEEE ICSPS 2015.
  140. Changwon Nam and Saewoong Bahk.
    ΔSNR-MAC: A priority-based multi-round contention scheme for MU-MIMO WLANs. Computer Networks 2015.
  141. Asaf Tzur, Ofer Amrani, and Avishai Wool.
    Direction Finding of rogue Wi-Fi access points using an off-the-shelf MIMO–OFDM receiver. Physical Communication 2015.
  142. Xiufeng Xie, Xinyu Zhang, Swarun Kumar, and Li Erran Li.
    piStream: Physical Layer Informed Adaptive Video Streaming Over LTE. MobiCom 2015.
  143. Deepak Vasisht, Swarun Kumar, and Dina Katabi.
    Sub-Nanosecond Time of Flight on Commercial Wi-Fi Cards. arXiv preprint arXiv:1505.03446 2015.
  144. Xuyu Wang, Lingjun Gao, Shiwen Mao, and Santosh Pandey. nc
    DeepFi: Deep Learning for Indoor Fingerprinting Using Channel State Information. IEEE WCNC 2015.
  145. Wei Wang, Yingjie Chen, and Qian Zhang.
    Privacy-Preserving Location Authentication in Wi-Fi Networks Using Fine-Grained Physical Layer Signatures. IEEE Trans. Wireless Communication, 2015.
  146. Wei Wang, Alex X. Liu, Muhammad Shahzad, Kang Ling, and Sanglu Lu.
    Understanding and Modeling of WiFi Signal Based Human Activity Recognition. ACM MobiCom 2015.
  147. Yi Wang, Xinli Jiang, Rongyu Cao, and Xiyang Wang.
    Robust Indoor Human Activity Recognition Using Wireless Signals. Sensors, 2015.
  148. Chenshu Wu, Zheng Yang, Zimu Zhou, Xuefeng Liu, Yunhao Liu, and Jiannong Cao.
    Non-invasive Detection of Moving and Stationary Human with WiFi. IEEE J. Selected Areas of Communication, 2015.
  149. Chenshu Wu, Zheng Yang, Zimu Zhou, Kun Qian, Yunhao Liu, and Mingyan Liu. nc
    PhaseU: Real-time LOS Identification with WiFi. IEEE INFOCOM 2015.
  150. Haijiang Xie, Li Lin, Zhiping Jiang, Wei Xi, Kun Zhao, Meiyong Ding, and Jizhong Zhao.
    Accelerating Crowdsourcing Based Indoor Localization Using CSI. IEEE ICPADS 2015.
  151. Hong Xiong, Fengyuan Gong, Lin Qu, Chenlin Du, and Khaled Harfoush.
    CSI-based Device-free Gesture Detection. IEEE HONET 2015.
  152. Jeong-Woo Yang and Gi-hwan Cho.
    Utilizing CSI to Improve Distance Estimation Precision in the Indoor Environment. SERSC Intl. J. Software Engineering and its Applications 2015.
  153. Wu Yang, Liangyi Gong, Dapeng Man, Jiguang Lv, Haibin Cai, Xiancun Zhou and Zheng Yang.
    Enhancing the Performance of Indoor Device-free Passive Localization. Intl. J. of Distributed Sensor Networks, 2015.
  154. Yunze Zeng, Parth H. Pathak, and Prasant Mohapatra.
    Analyzing Shopper's Behavior through WiFi Signals. ACM WPA 2015.
  155. Daqing Zhang, Hao Wang, Yasha Wang, and Junyi Ma.
    Anti-fall: A Non-intrusive and Real-Time Fall Detector Leveraging CSI from Commodity WiFi Devices. ICOST 2015.
  156. Zimu Zhou, Zheng Yang, Chenshu Wu, Yunhao Liu, and Lionel M. Ni.
    On Multipath Link Characterization and Adaptation for Device-free Human Detection. ICDCS, 2015.
  157. Ibrahim Ethem Bagci, Utz Roedig, Matthias Schulz, and Matthias Hollick.
    Short Paper: Gathering Tamper Evidence in Wi-Fi Networks Based on Channel State Information. ACM WiSec 2014.
  158. Arijit Banerjee, Dustin Maas, Maurizio Bocca, Neal Patwari, and Sneha Kasera.
    Violating Privacy Through Walls by Passive Monitoring of Radio Windows. ACM WiSec 2014.
  159. Apurv Bhartia. nc
    Improving Spectrum Utilization in Wireless Networks. Ph.D. Thesis, University of Texas at Austin, 2014.
  160. Seongho Byeon, Kangjin Yoon, Okhwan Lee, Sunghyun Choi, Woonsun Cho, and Seungseok Oh.
    MoFA: Mobility-aware Frame Aggregation in Wi-Fi. ACM CoNEXT 2014.
  161. Yogita Chapre, Aleksandar Ignjatovic, Aruna Seneviratne, and Sanjay Jha.
    CSI-MIMO Indoor Wi-Fi Fingerprinting System. IEEE LCN 2014.
  162. Deng Chen, Li Du, Zhiping Jiang, Wei Xi, Jinsong Han, Kun Zhao, Jizhong Zhao, Zhi Wang, Rui Li.
    A Fine-Grained Indoor Localization using Multidimensional Wi-Fi Fingerprinting. IEEE ICPADS 2014.
  163. Yi-Chao Chen, Lili Qiu, Yin Zhang, Guangtao Xue, and Zhenxian Hu. nc
    Robust Network Compressive Sensing. ACM MobiCom 2014.
  164. Yingjie Chen, Wei Wang, and Qian Zhang. nc
    Privacy-Preserving Location Authentication in WiFi with Fine-Grained Physical Layer Information. IEEE GLOBECOM 2014.
  165. Jon Gjengset, Jie Xiong, Graeme McPhillips, and Kyle Jamieson.
    Phaser: enabling phased array signal processing on commodity WiFi access points. ACM MobiCom 2014.
  166. Jon Gjengset, Graeme McPhillips, and Kyle Jamieson.
    ArrayPhaser: Enabling Signal Processing on WiFi Access Points. UCL RN/14/04 2014.
  167. Chunmei Han, Kaishun Wu, Yuxi Wang, and Lionel M. Ni.
    WiFall: Device-free fall detection by wireless networks. IEEE INFOCOM 2014.
  168. Dai Hanyi and Zhang Gong. nc
    The Research and Tests of Wi-Fi Interference Based on IEEE 802.11n CSI-Tool. Electronic Engineer, vol. 40, no. 1, Feb. 2014.
  169. Donny Huang and Rajalakshmi Nandakumar and Shyam Gollakota.
    Feasibility and Limits of Wi-Fi Imaging. ACM SenSys 2014.
  170. Zhiping Jiang, Wei Xi, Xiangyang Li, Shaojie Tang, Ji-Zhong Zhao, Jin-Song Han, Kun Zhao, Zhi Wang, and Bo Xiao. nc
    Communicating Is Crowdsourcing: Wi-Fi Indoor Localization with CSI-based Speed Estimation. Springer J. Computer Science and Technology 2014.
  171. Bryce Kellogg, Aaron Parks, Shyamnath Gollakota, Joshua R. Smith, and David Wetherall.
    Wi-Fi Backscatter: Internet Connectivity for RF-Powered Devices. ACM SIGCOMM 2014.
  172. Swarun Kumar, Stephanie Gil, Dina Katabi, and Daniela Rus.
    Accurate indoor localization with zero start-up cost. ACM MobiCom 2014.
  173. Okhwan Lee, Jihoon Kim, Jongtae Lim, and Sunghyun Choi. nc
    SIRA: SNR-aware Intra-frame Rate Adaptation. IEEE Communications Letters, November 2014.
  174. Suchul Lee, Jaehyuk Choi, Joon Yoo, and Chong-Kwon Kim.
    Frequency Diversity-Aware Wi-Fi Using OFDM-based Bloom Filters. IEEE Trans. Mobile Computing, 2014.
  175. Suchul Lee, Jaehyuk Choi, Joon Yoo, and Chong-Kwon Kim.
    Providing quality-of-service for frequency-aware Wi-Fi using OFDM-based variable-length Bloom filters. EURASIP Journal on Wireless Communications and Networking, 2014.
  176. Hongbo Liu, Yang Wang, Jian Liu, Jie Yang, and Yingying Chen. nc
    Practical User Authentication Leveraging Channel State Information (CSI). ASIA CCS 2014.
  177. Rajalakshmi Nandakumar, Bryce Kellogg, and Shyamnath Gollakota.
    Wi-Fi Gesture Recognition on Existing Devices. arXiv preprint arXiv:1411.5394 2014.
  178. Minsu Park, Okhwan Lee, Bo Ryu, Sunghyun Choi, Byeonggi Lee. nc
    An Energy Efficient Rate Adaptation Method in IEEE 802.11n WLAN. Korea Information and Communications Society General Conference (Winter) 2014.
  179. Kun Qian, Chenshu Wu, Zheng Yang, Yunhao Liu, and Zimu Zhou. nc
    PADS: Passive Detection of Moving Targets with Dynamic Speed using PHY Layer Information. IEEE ICPADS 2014.
  180. Swati Rallapalli.
    Mobile Localization: Approach and Applications. Ph.D. Thesis, University of Texas at Austin, 2014.
  181. Yan Wang, Jian Liu, Yingying Chen, Marco Gruteser, Jie Yang, and Hongbo Liu.
    E-eyes: Device-free Location-oriented Activity Identification Using Fine-grained WiFi Signatures. ACM MobiCom 2014.
  182. Zhi Wang, Jinsong Han, Wei Xi, and Jizhong Zhao.
    Efficient and secure key extraction using channel state information. Springer J. Supercomputing 2014.
  183. Wei Xi, Xiang-Yang Li, Chen Qian, Jinsong Han, Shaojie Tang, Jizhong Zhao, and Kun Zhao.
    KEEP: Fast Secret Key Extraction Protocol for D2D Communication. IEEE/ACM IWQoS 2014.
  184. Wei Xi, Jizhong Zhao, Xiang-Yang Li, Kun Zhao, Shaojie Tang, Xue Liu, and Zhiping Jiang. nc
    Electronic Frog Eye: Counting Crowd Using WiFi. IEEE INFOCOM 2014.
  185. Jiang Xiao, Youwen Yi, Lu Wang, Haochao Li, Zimu Zhou, Kaishun Wu, and Lionel M. Ni. nc
    NomLoc: Calibration-Free Indoor Localization with Nomadic Access Points. IEEE ICDCS 2014.
  186. Guanhua Wang, Yongpan Zou, Zimu Zhou, Kaishun Wu, Lionel M. Ni. nc
    We can hear you with Wi-Fi!. ACM MobiCom 2014.
  187. Jeong-woo, Yang Gae-il An, Shin-hyo Kim, Byung-ho Chung, Tae-yeon Kim, Ki-hyun Pyun, and Gi-hwan Cho. nc
    A Distance Estimation Scheme Based on WLAN RF Properties for Localization of Mobile Terminals. J. Korea Information and Communications Society, vol. 39B, no. 7, July 2014.
  188. Zheng Yang, Zimu Zhou, and Yunhao Liu. nc
    From RSSI to CSI: Indoor Localization via Channel Response. ACM Computing Surveys, vol. 26, no. 2, June 2014.
  189. Yunze Zeng, Parth H. Pathak, Chao Xu, and Prasant Mohapatra.
    Your AP Knows How You Move: Fine-grained Device Motion Recognition through WiFi. ACM HotWireless 2014.
  190. Xiuyuan Zheng, Chen Wang, Yingying Chen, and Jie Yang. nc
    Accurate Rogue Access Point Localization Leveraging Fine-grained Channel Information. IEEE CNS 2014.
  191. Zenghua Zhao, Fucheng Zhang, Shaoping Guo, Xiang-Yang Li, and Junze Han.
    RainbowRate: MIMO Rate Adaptation in 802.11n WiLD Links. IEEE IPCCC 2014.
  192. Zimu Zhou, Zheng Yang, Chenshu Wu, Longfei Shangguan, and Yunhao Liu. nc
    Omnidirectional Coverage for Device-Free Passive Human Detection. IEEE Trans. Parallel and Distributed Systems 2014.
  193. Zimu Zhou, Zheng Yang, Chenshu Wu, Wei Sun, and Yunhao Liu. nc
    LiFi: Line-Of-Sight Identification with WiFi. IEEE INFOCOM 2014.
  194. Heba Abdel-Nasser, Reham Samir, Ibrahim Sabek, and Moustafa Youssef.
    MonoPHY: Mono-Stream-based Device-free WLAN Localization via Physical Layer Information. IEEE WCNC 2013.
  195. Jun Huang, Yu Wang, and Guoliang Xing.
    LEAD: leveraging protocol signatures for improving wireless link performance. ACM MobiSys 2013.
  196. Zhiping Jiang, Jizhong Zhao, Xiang-Yang Li, Jinsong Han, and Wei Xi. nc
    Rejecting the attack: Source authentication for Wi-Fi management frames using CSI Information. IEEE INFOCOM 2013.
  197. Muhammad Owais Khan, Vacha Dave, Yi-Chao Chen, Oliver Jensen Lili Qiu, Apurv Bhartia, and Swati Rallapalli.
    Model-Driven Energy-Aware Rate Adaptation. ACM MobiHoc 2013.
  198. Swarun Kumar, Diego Cifuentes, Shyamnath Gollakota, and Dina Katabi.
    Bringing Cross-Layer MIMO to Today's Wireless LANs. ACM SIGCOMM 2013.
  199. Hongbo Liu, Yang Wang, Jie Yang, and Yingying Chen.
    Fast and practical secret key extraction by exploiting channel response. IEEE INFOCOM 2013.
  200. Ibrahim Sabek and Moustafa Youssef.
    MonoStream: A Minimal-Hardware High Accuracy Device-free WLAN Localization System. 2013.
  201. Zimu Zhou, Zheng Yang, Chenshu Wu, Longfei Shangguan, and Yunhao Liu.
    Towards Omnidirectional Passive Human Detection. IEEE INFOCOM 2013.
  202. Riccardo Crepaldi, Jeongkeun Lee, Raul Etkin, Sung-Ju Lee, and Robin Kravets.
    CSI-SF: Estimating wireless channel state using CSI sampling & fusion. IEEE INFOCOM 2012.
  203. Sobia Jangsher, Syed Ali Khayam, and Qasim Chaudhari. nc
    Application-aware MIMO Video Rate Adaptation. IEEE INFOCOM 2012.
  204. Suchul Lee and Chong-Kwon Kim.
    D-Fi: A Diversity-Aware Wi-Fi Using An OFDM-based Bloom Filter. IEEE ICNP 2012.
  205. Hariharan Rahul, Swarun Kumar, and Dina Katabi.
    MegaMIMO: Scaling Wireless Capacity with User Demands. ACM SIGCOMM 2012.
  206. Souvik Sen, Romit Roy Choudhury, and Srihari Nelakuditi. nc
    SpinLoc: Spin once to know your location. HotMobile 2012.
  207. Souvik Sen, Božidar Radunovic, Romit Roy Choudhury, and Tom Minka. nc
    You are facing the Mona Lisa: spot localization using PHY layer information. ACM MobiSys 2012.
  208. Jiang Xiao, Kaishun Wu, Youwen Yi, Lu Wang, and Lionel M. Ni. nc
    FIMD: Fine-grained Device-free Motion Detection. IEEE ICPADS 2012.
  209. Jiang Xiao, Kaishun Wu, Youwen Yi, and Lionel M. Ni. nc
    FIFS: Fine-Grained Indoor Fingerprinting System. IEEE ICCCN 2012.
  210. Kaishun Wu, Jiang Xiao, Youwen Yi, Dihu Chen, Xiaonan Luo, and Lionel M. Ni. nc
    CSI-based Indoor Localization. IEEE TPDS 2012.
  211. Kaishun Wu, Jiang Xiao, Youwen Yi, Min Gao, and Lionel M. Ni. nc
    FILA: Fine-grained indoor localization. IEEE INFOCOM 2012.
  212. Jizhong Zhao, Wei Xi, Jinsong Han, Shaojie Tang, Xiangyang Li, Yunhao Liu, Yihong Gong, and Zehua Zhou.
    Efficient and Secure Key Extraction using CSI without Chasing down Errors. arXiv 2012.
  213. Apurv Bhartia, Yi-Chao Chen, Swati Rallapalli, and Lili Qiu.
    Harnessing Frequency Diversity in Wi-Fi Networks. ACM MobiCom 2011.
  214. Souvik Sen, Romit Roy Choudhury, Božidar Radunovic, and Tom Minka. nc
    Precise indoor localization using PHY layer information. HotNets 2011.
  215. Michelle X. Gong, Eldad Perahia, Roy Want, and Shiwen Mao.
    Training protocols for multi-user MIMO wireless LANs. IEEE PIMRC 2010.


Authors: Daniel Halperin | Wenjun Hu | Anmol Sheth | David Wetherall
Maintainers: Daniel Halperin | David Ward

To cite this tool, the best reference is the CCR 2011 paper (BibTeX).