Publications

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    2015

  • Insecurity of Voice Solution VoLTE in LTE Mobile Networks
    Chiyu Li, Guanhua Tu, Chunyi Peng, Zengwen Yuan, Yuanjie Li, Songwu Lu, Xinbing Wang
    Proceedings of the 21st ACM Conference on Computer and Communications Security (CCS'15) , Denver, Colorado, Oct. 2015.
    ( acceptance rate: 128/646= 19.8%)

  • How Voice Call Technology Poses Security Threats in 4G LTE Networks
    Guanhua Tu, Chiyu Li, Chunyi Peng, Songwu Lu
    proceedings of the IEEE Conference on Communications and Network Security(CNS'15) , Florence, Italy, Sep. 2015.
    ( acceptance rate: 48/171= 28.1%)

  • Detecting Problematic Control-Plane Protocol Interactions in Mobile Networks
    Guan-Hua Tu, Yuanjie Li, Chunyi Peng, Chiyu Li, Songwu Lu,
    To appear in IEEE Transactions on Networking (TON) . [ PDF]

  • InFrame++: Achieve Simultaneous Screen-Human Viewing and Hidden Screen-Camera Communication
    Anran Wang, Zhuoran Li, Chunyi Peng, Guobin Shen, Gan Fang, Bin Zeng,
    Proceedings of the 13th International Conference on Mobile Systems, Applications and Service ( MobiSys'15 ), Florence Italy, May 2015.
    (acceptance rate: 29/219 = 13.2% ) [PDF]

  • Latency-Aware Rate Adaptation in 802.11n Home Networks
    Chi-Yu Li, Chunyi Peng, Songwu Lu, Xinbing Wang and Ranveer Chandra,
    Proceedings of the IEEE Conference on Computer Communications ( INFOCOM'15 ), Hong Kong, China, April, 2015.
    ( acceptance rate: 316/1640 = 19.3%) [PDF]

  • A Measurement Study on TCP Behaviors in HSPA+ Networks on High-speed Rails
    Li Li, Ke Xu, Dan Wang, Chunyi Peng, Qingyang Xiao and Rashid Mijumbi,
    Proceedings of the IEEE Conference on Computer Communications ( INFOCOM'15 ), Hong Kong, China, April, 2015.
    ( acceptance rate: 316/1640 = 19.3%) [PDF] [Slide ]

    2014

  • Real Threats to Your Data Bills: Security Loopholes and Defense in Mobile Data Charging
    Chunyi Peng, Chiyu Li, Hongyi Wang, Guanhua Tu, Songwu Lu
    Proceedings of the 21st ACM Conference on Computer and Communications Security (CCS'14 ), Scottsdale, Arizona, Nov. 2014.
    (acceptance rate: 114/585 = 19.5%) [PDF] [Slide ] [Demos upon Request]

  • InFrame: Multiflexing Full-Frame Visible Communication Channel for Humans and Devices
    Anran Wang, Chunyi Peng, Ouyang Zhang, Guobin Shen, and Bing Zeng, Proceedings of the 13th ACM Workshop on Hot Topics in Networks (HotNets-XIII ), Los Angeles, CA, Nov. 2014.
    (acceptance rate: 26/118 = 22.0%) [PDF] [Slide ] [Demo: InFrame Video ]

  • Enhancing Reliability to Boost the Throughput over Screen-Camera Links
    Anran Wang, Shuai Ma, Chunming Hu, Jinpeng Huai, Chunyi Peng and Guobin Shen
    Mobicom'14. Proceedings of the 20th Annual International Conference on Mobile Computing and Networking (MobiCom'14 ), Maui, Hawaii, Sep. 2014.
    (acceptance rate: 36/220 = 16.4%) [PDF]

  • Control-Plane Protocol Interactions in Cellular Networks
    Guanhua Tu, Yuanjie Li, Chunyi Peng, Chiyu Li, Hongyi Wang, Songwu Lu,
    Proceedings of the ACM SIGCOMM Conference ( SIGCOMM'14 ), Chicago, IL, August 2014.
    (acceptance rate: 45/237 = 19.0% ) [ PDF ] [slide]

  • Ubiquitous Keyboard for Small Mobile Devices: Harnessing Multipath Fading for Fine-Grained Keystroke Localization
    Junjue Wang, Kaichen Zhao, Xinyu Zhang, Chunyi Peng
    Proceedings of the 12th International Conference on Mobile Systems, Applications and Service ( MobiSys'14 ), Bretton Woods, NH, June 2014.
    (acceptance rate: 25/221 = 11.3% ) [ PDF ]

  • Hidden Costs of Mobile Data Access in Cellular Networks
    Zehui Li, Chunyi Peng, Yunxin Liu,
    LANMAN'14, Reno, NV, USA, May 2014 (Invited Paper).

  • Epsilon: A Visible Light Based Positioning System
    Liqun Li, Pan Hu, Chunyi Peng, Guobin Shen, Feng Zhao,
    Proceedings of the 11th USENIX Symposium on Networked Systems Design and Implementation ( NSDI'14 ), Seattle, WA, April 2014.
    (acceptance rate: 38/223 = 17.0%) [PDF]

  • GreenBSN: Enabling Energy-Proportional Cellular Base Station Networks
    Chunyi Peng, Suk-Bok Lee, Songwu Lu, Haiyun Luo,
    IEEE Transactions on Mobile Computing (TMC), Vol. 13, No. 11, pp: 2537 - 2551, Nov 2014.

    2013

  • Pharos: Enable Physical Analytics through Visible Light based Indoor Localization
    Pan Hu, Liqun Li, Chunyi Peng, Guobin Shen, Feng Zhao,
    Proceedings of the 12th ACM Workshop on Hot Topics in Networks (HotNets-XII ), College Park, MD, Nov. 2013.
    ( acceptance rate: 26/110 = 23.6% ) [PDF] [Slide]

  • CMES: Collaborative Energy Save for MIMO 802.11 Wireless Networks
    Ioannis Pefkianakis, Chiyu Li, Chunyi Peng, Suk-Bok Lee, Songwu Lu,
    Proceedings of the 21st IEEE International Conference on Network Protocols ( ICNP'13 ), Gottingen, Germany, Oct. 2013.
    ( acceptance rate: 46/251 =18.3% ) [PDF] [Slide]

  • How Voice Calls Affect Data in Operational LTE Networks
    Guan-Hua Tu, Chunyi Peng, Hongyi Wang, Chi-Yu Li, Songwu Lu
    Proceedings of the 19th Annual International Conference on Mobile Computing and Networking (MobiCom'13), Miami, FL, USA, Sep. 2013. ( acceptance rate: 28/208= 13.5% ) [PDF] [Slide]

  • Accounting for Roaming Users on Mobile Data Access: Issues and Root Causes
    Guan-hua Tu, Chunyi Peng, Chi-yu Li, Xingyu Ma, Hongyi Wang, Tao Wang, Songwu Lu
    Proceedings of the 11th International Conference on Mobile Systems, Applications and Service (MobiSys'13), Taipei, Taiwan, June 2013.
    ( acceptance rate: 33/210= 15.7% ) [PDF] [Slide]

  • Window-based Rate Adaptation in 802.11n Wireless Networks
    Ioannis Pefkianakis, Yun Hu, Suk-Bok Lee, Chunyi Peng, Soa Sakellaridi, Songwu Lu,
    ACM Mobile Networks and Applications (MONET), Vol. 18, No. 1, pp: 156-169, 2013.

Prior to 2012

  • Mobile Data Charging: New Attacks and Countermeasures
    Chunyi Peng, Chi-yu Li, Guan-hua Tu, Songwu Lu, Lixia Zhang
    CCS'12, Oct. 2012. (acceptance rate: 80/423 = 18.9%) [PDF] [slide] [demo]

  • Can We Pay for What We Get in 3G Data Access?
    Chunyi Peng, Guan-hua Tu, Chi-yu Li, Songwu Lu,
    Mobicom'12, Aug. 2012. (acceptance rate: 32/212 = 15.1%) [PDF] [slide] [demo]

  • Energy-based Rate Adaptation for 802.11n,
    Chi-yu Li, Chunyi Peng, Songwu Lu, Xinbing Wang,
    Mobicom'12, Aug. 2012. (acceptance rate: 32/212 = 15.1%) [PDF] [slide]

  • VDN: Virtual Machine Image Distribution Network for Cloud Data Centers,
    Chunyi Peng, Minkyong Kim, Zhe Zhang, Hui Lei,
    Infocom'12, Mar 2012. (acceptance rate: 278/1547 = 18%)[PDF] [slide]

  • BeepBeep: A High-Accuracy Acoustic-Based System for Ranging and Localization Using COTS Devices,
    Chunyi Peng, Guobin Shen and Yongguang Zhang,
    ACM Transactions on Embedded Computing Systems, Vol. 11, No. 1, Article 4, March 2012. [PDF]

  • An Empirical Analysis of Similarity in Virtual Machine Images,
    K. R. Jayaram, Chunyi Peng, Zhe Zhang, Minkyong Kim, Han Chen, Hui Lei,
    Middleware'11, Dec 2011. [PDF]

  • Measuring redundancy level on the Web,
    Alexander Afanasyev, Jiangzhe Wang, Chunyi Peng, Lixia Zhang,
    AINTEC'11, Nov 2011. [PDF]

  • Traffic-Driven Power Saving in Operational 3G Networks,
    Chunyi Peng, Suk-Bok Lee, Songwu Lu, Haiyun Luo, Hewu Li,
    Mobicom'11, Sep 2011. (acceptance rate: 29/214 = 13.5%) [PDF][slide]

  • Jiangzhe Wang, Chunyi Peng, Chiyu Li, Eric Osterweil, Ryuji Wakikawa, Pei-chun Cheng, Lixia Zhang,
    Implementing Instant Messaging Using Named Data,
    AINTEC'10, Nov 2010. [PDF]

  • A Scalable Micro Wireless Interconnect Structure for CMPs,
    Suk-Bok Lee, Sai-Wang Tam, Ioannis Pefkianakis, Songwu Lu, M. Frank Chang, Chuanxiong Guo, Glenn Reinman, Chunyi Peng, Mishali Naik, Lixia Zhang, Jason Cong
    Mobicom'09, Sep 2009. (acceptance rate: 30/282=10.6%)[PDF]

  • Point&Connect: Intention-based Device Pairing for Mobile Phone Users,
    Chunyi Peng, Guobin Shen, Yongguang Zhang, and Songwu Lu,
    Mobisys'09, June 2009. (acceptance rate: 26/128 = 20.3%) [PDF]

  • Analysis of classification margin for classification accuracy with applications,
    Qutang Cai, Changshui Zhang, Chunyi Peng,
    Neurocomputing, Vol.72, March 2009, pp: 1960-1968. [PDF]

  • A Weighted Subspace Approach for Improving Bagging Performance,
    Qutang Cai, Chunyi Peng, Changshui Zhang,
    2008 International Conference on Acoustic, Speech, and Signal Processing (ICASSP), Apr, 2008. [ PDF ]

  • BeepBeep: A High Accuracy Acoustic Ranging System using COTS Mobile Devices,
    Chunyi Peng, Guobin Shen, Yongguang Zhang, Yanlin Li, and Kun Tan,
    Sensys'07, Nov 2007. (acceptance rate: 25/149=16.8%)[PDF][PPT]

  • Anaylsis of Max-Min Eigenvalue of Constrained Linear Combinations of Symmetric Matrices,
    Qutang Cai, Chunyi Peng, Changshui Zhang,
    2007 International Conference on Acoustic, Speech, and Signal Processing (ICASSP), April 2007 [PDF]

  • Measurement and Modeling of A Web-based Question Answering System,
    Chunyi Peng, Zaoyang Gong, Guobin Shen,
    The first IEEE Workshop on Web Systems and Implementation (Hotweb), Nov 2006[PDF][PPT]

  • Collaboration and Fairness in Opportunistic Spectrum Access,
    Haitao Zheng, Chunyi Peng,
    IEEE International Conference on Communications (ICC), May 2005 [PDF]

  • Learning Probability Density Functions from Marginal Distributions with Applications to Gaussian Mixtures,
    Qutang Cai, Changshui Zhang, Chunyi Peng,
    IEEE International Joint Conference on Neural Networks (IJCNN), July 2005 [PDF]

  • A Block-Adaptive Subspace Method Using Oblique Projections for Blind Separation of Convolutive Mixtures,
    Chunyi Peng, Xianda Zhang, Qutang Cai,
    The International Symposium on Neural Networks (ISNN), May 2005 [PDF]

  • Utilization and Fairness in Spectrum Assignment for Opportunistic Spectrum Access,
    Chunyi Peng, Haitao Zheng, B.Y. Zhao,
    ACM Mobile Networks and Applications (MONET), Vol. 11, No.4, May 2006, pp: 555-576. [PDF]

  • On Recursive Oblique Projectors,
    Chunyi Peng, Xianda Zhang,
    IEEE Signal Processing Letters, Vol. 12, No. 6, June 2005, pp: 433-436 [PDF ]

  • Blind Separation of Convolutive Mixtures Using Oblique Projections (in Chinese),
    Chunyi Peng, Xiaolong Zhu, Xianda Zhang,
    Journal of Tsinghua University (Science and Technology), Vol.25, No. 4, April 2005, pp: 517-520 [PDF]

    Demos

  • Demo: Achieve Simultaneous Screen-Human Viewing and Hidden Screen-Camera Communication
    Anran Wang, Zhuoran Li, Gan Fang, Chunyi Peng, Guobin Shen, Bin Zeng
    ACM Mobisys'15, 2015.

  • Demo: A Paper Keyboard for Mobile Devices
    Junjue Wang, Kaichen Zhao, Xinyu Zhang and Chunyi Peng,
    ACM Mobisys'14, 2014.

  • (Demo) Point2Share: Intuitive and Secure File Sharing Among Mobile Phone Users
    Chunyi Peng, Guobin Shen, Donggun Kim, Yongguang Zhang,
    ACM Mobisys'08 Demo (best demo award), 2008.

  • (Demo) A BeepBeep ranging system on mobile phones
    Chunyi Peng, Guobin Shen, Zheng Han, Yongguang Zhang, Yanlin Li, Kun Tan
    ACM Sensys'07 Demo (best demo award), 2007.

  • (Demo) MobiUS: A Together-Viewing Mobile Video Experience
    Guobin Shen, Yanlin Li, Chunyi Peng, Yongguang Zhang
    ACM Mobisys'07 Demo (best demo award), 2007.

    Technical Reports

  • (TR) Collaborative MIMO 802.11 Energy Save
    Ioannis Pefkianakis, Chi-Yu Li, Chunyi Peng, Suk-Bok Lee, Songwu Lu
    Technical Report 130014, Department of Computer Science, University of California, Los Angeles, 2013.

  • (TR) Achieving 802.11n NIC Energy Eciency through Rate Adaptation,
    Chi-yu Li, Chunyi Peng, Songwu Lu,
    Technical Report, Department of Computer Science, University of California, Los Angeles, 2012.

  • (TR) Green 3G Cellular Network Infrastructure: A Traffic-driven Approach,
    Chunyi Peng, Suk-Bok Lee, Songwu Lu,
    Technical Report, Department of Computer Science, University of California, Los Angeles, 2011.