Wireless Networking Group
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WELCOME

Welcome to the Wireless Networking Group (WiNG) at UCLA Computer Science Department. WiNG's research areas include wireless networking, mobile systems, and cloud computing. Our focus is on design, implementation and experimentation of protocols, algorithms and systems for wireless data networks. The goal is to build high-performance and dependable networking solutions for the wireless Internet.

The Wireless Networking Group is led by Dr. Songwu Lu, Professor at UCLA.

QUICK LINKS
         MobileInsight
         MiRA
NEWS

   Oct. 2016

      MobileInsight won the ACM MobiCom'16 Best Community Paper Award.
   July 2016

     Guan-Hua Tu is now an assistant professor in the Department of Computer Science and Engineering at Michigan State University. Chi-Yu Li is now an assistant professor in the Department of Computer Science at National Chiao Tung University.
   July 2016

      4G-SMS security has been accepted to ACM CCS'16.
   June 2016

      MobileInsight has been accepted to ACM MobiCom'16.
   Apr. 2016

      MobileInsight 2.0 has been released. Try our in-phone cellular network monitoring and analysis tool!
   Mar. 2016

      Mobility misconfiguration analysis has been accepted to ACM SIGMETRICS'16.
   Dec. 2015

      VoLTE* and MMDiag have been accepted to HotMobile'16.
   Dec. 2015

     iCellular has been accepted to NSDI'16.
   Oct. 2015

     Our work "Insecurity of Voice Solution VoLTE in LTE Mobile Networks" has been reported by TheVerge, RCRWireless, Techxina, NewsUnited, etc.
   Jun. 2015

     Guan-Hua Tu successfully defended his thesis.
   May. 2014

     Chi-Yu Li successfully defended his thesis.
   May. 2014

     Guan-Hua Tu is awarded the prestigious UCLA Dissertation Fellowship Award.
RECENT PUBLICATIONS

    Yuanjie Li, Chunyi Peng, Zengwen Yuan, Jiayao Li, Haotian Deng, Tao Wang

      "MobileInsight: Extracting and Analyzing Cellular Network Information on Smartphones",

       ACM MobiCom 2016.
    Guan-Hua Tu, Chi-Yu Li, Chunyi Peng, Yuanjie Li, Songwu Lu

      "New Security Threats Caused by IMS-based SMS Service in 4G LTE Networks",

       ACM CCS 2016.
    Yuanjie Li, Zengwen Yuan, Chunyi Peng, Songwu Lu

      "CAP on Mobility Control for 4G LTE Networks",

       ACM HotWireless 2016.
    Yuanjie Li, Haotian Deng, Jiayao Li, Chunyi Peng, Songwu Lu

      "Instability in Distributed Mobility Management: Revisiting Configuration Management in 3G/4G Mobile Networks",

       ACM SIGMETRICS 2016.
    Chunyi Peng, Yuanjie Li, Zhuoran Li, Jie Zhao, Jiaqi Xu

      "Understanding and Diagnosing Real-World Femtocell Performance Problems",

      IEEE INFOCOM 2016.
    Yuanjie Li, Haotian Deng, Chunyi Peng, Guan-Hua Tu, Jiayao Li, Zengwen Yuan, Songwu Lu

      "iCellular: Device-Customized Cellular Network Access on Commodity Smartphones",

       USENIX NSDI 2016.
    Guan-Hua Tu, Chi-Yu Li, Chunyi Peng, Zengwen Yuan, Yuanjie Li, Xiaohu Zhao, Songwu Lu

      "VoLTE*: A Lightweight Voice Solution to 4G LTE Networks",

       ACM HotMobile 2016.
    Yuanjie Li, Jiaqi Xu, Chunyi Peng, Songwu Lu

      "A First Look at Unstable Mobility Management in Cellular Networks",

       ACM HotMobile 2016.
    Chunyi Peng, Yuanjie Li

      "Demystify Undesired Handoff in Cellular Networks",

       IEEE ICCCN 2016.
    Chi-Yu Li, Guan-Hua Tu, Chunyi Peng, Zengwen Yuan, Yuanjie Li, Songwu Lu, Xinbing Wang

      "Insecurity of Voice Solution VoLTE in LTE Mobile Networks,"

      ACM CCS 2015.
    Chi-Yu Li, Chunyi Peng, Peng Cheng, Songwu Lu, Xinbing Wang, Fengyuan Ren, Tao Wang

      "An Energy Efficiency Perspective on Rate Adaptation for 802.11n NIC,"

      Accepted to IEEE Transactions on Mobile Computing (TMC) 2015.
    Guan-Hua Tu, Chi-Yu Li, Chunyi Peng, Songwu Lu

      "How Voice Call Technology Poses Security Threats in 4G LTE Networks,"

      IEEE CNS 2015.
    Chi-Yu Li , Chunyi Peng , Songwu Lu , Xinbing Wang, Ranveer Chandra

      "Latency-Aware Rate Adaptation in 802.11n Home Networks,"

      IEEE INFOCOM 2015.
    Guan-Hua Tu, Yuanjie Li, Chunyi Peng, Chiyu Li, Songwu Lu

      "Detecting Problematic Control-Plane Protocol Interactions in Mobile Networks,"

      IEEE/ACM Transactions on Networking (TON) 2015.
    Chunyi Peng, Chi-Yu Li, Guan-Hua Tu, Hongyi Wang, Songwu Lu

      "Real Threats to Your Data Bills: Security Loopholes and Defense in Mobile Data Charging,"

      Accepted by ACM CCS, 2014.
    Guan-Hua Tu, Yuanjie Li, Chunyi Peng, Chi-Yu Li, Hongyi Wang, Songwu Lu

      "Control-Plane Protocol Interactions in Cellular Networks,"

      Accepted by ACM SIGCOMM, 2014.
    Ioannis Pefkianakis, Chi-Yu Li, Chunyi Peng, Suk-Bok Lee, Songwu Lu

      "CMES: Collaborative Energy Save for MIMO 802.11 Wireless Networks,"

      IEEE ICNP, 2013.
    Guan-Hua Tu, Chunyi Peng, Hongyi Wang, Chi-Yu Li, Songwu Lu

      "How Voice Calls Affect Data in Operational LTE Networks,"

      ACM MOBICOM, 2013.
    Guan-Hua Tu, Chunyi Peng, Chi-Yu Li, Xingyu Ma, Songwu Lu

      "Accounting for Roaming Users on Mobile Data Access: Issues and Root Causes,"

      ACM MOBISYS, 2013.
    Chunyi Peng, Chi-Yu Li, Guan-Hua Tu, Songwu Lu, Lixia Zhang

      "Mobile Data Charging: New Attacks and Countermeasures,"

      ACM CCS, 2012.
    Chunyi Peng, Guan-Hua Tu, Chi-Yu Li, Songwu Lu

      "Can We Pay for What We Get in 3G Data Access?,"

      ACM MOBICOM, 2012.
    Chi-Yu Li, Chunyi Peng, Songwu Lu, Xinbing Wang

      "Energy-based Rate Adaptation for 802.11n,"

      ACM MOBICOM, 2012.
   Chunyi Peng, Suk-Bok Lee, Songwu Lu, Haiyun Luo and Hewu Li,

      "Traffic-Driven Power Saving in Operational 3G Networks,"

       ACM MOBICOM, 2011.
   Ioannis Pefkianakis, Yun Hu, Starsky H.Y. Wong, Hao Yang, Songwu Lu,

      "MIMO Rate Adaptation in 802.11n Wireless Networks,"

       ACM MOBICOM, 2010.
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