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  • Projects at the University of Michigan:

  • Redesigning the carrier sensing and idle listening mechanism in CSMA wireless networks, to reduce the dominating idle power.
  • Related publications:
    • E-MiLi: Energy-Minimizing Idle Listening in Wireless Networks
    • Xinyu Zhang, Kang G. Shin
      In the Proceedings of the 17th ACM Annual International Conference on Mobile Computing and Networking (MobiCom), 2011
      (29 out of 214 submissions, acceptance ratio: 13.6%) (slides: .pptx)
      (Best Paper Award, fast-tracked to IEEE Transactions on Mobile Computing)

    • E-MiLi: Energy-Minimizing Idle Listening in Wireless Networks
    • Xinyu Zhang, Kang G. Shin
      To appear in IEEE Transactions on Mobile Computing (TMC, fast track), 2012


  • Redesigning the carrier signaling mechanism in CSMA, to enable coexistence of heterogeneous wireless networks.
  • Related publications:
    • Enabling Coexistence of Heterogeneous Wireless Systems: Case for ZigBee and WiFi
    • Xinyu Zhang, Kang G. Shin
      In the Proceedings of 12th ACM International Symposium on Mobile Ad Hoc Networking and Computing (MobiHoc), 2011
      (25 out of 127 submissions, acceptance ratio: 19.7%) (slides: .pptx)

    • Cooperative Carrier Signaling: Harmonizing Coexisting WPAN and WLAN Devices
    • Xinyu Zhang, Kang G. Shin
      To appear in ACM/IEEE Transactions on Networking (ToN), 2012

    • A Case for the Coexistence of Heterogeneous Wireless Networks
    • Xinyu Zhang, Kang G. Shin
      In Proceedings of the 3rd ACM Wireless Student Workshop (ACM S3), 2011


  • Redesigning the spectrum allocation/access mechanism in WiFi, to enable the coexistence of heterogeneous channel widths.
  • Related publications:
    • Adaptive Subcarrier Nulling: Enabling Partial Spectrum Sharing in Wireless LANs
    • Xinyu Zhang, Kang G. Shin
      In the Proceedings of the 19th IEEE International Conference on Network Protocols (ICNP), 2011
      (31 out of 189 submissions, acceptance ratio: 16.4%) (slides: .pptx)


  • Redesigning the collision resolution mechanism of CSMA wireless networks, to enable delay-optimal broadcast and asynchronous cooperative relaying.
  • Related publications:
    • Chorus: Collision Resolution for Efficient Wireless Broadcast
    • Xinyu Zhang, Kang G. Shin
      In the Proceedings of 29th IEEE Conference on Computer Communications (INFOCOM), 2010
      (276 out of 1575 submissions, acceptance ratio: 17.5%) (slides: .pptx)

    • DAC: Distributed Asynchronous Cooperation for Wireless Relay Networks
    • Xinyu Zhang, Kang G. Shin
      In the Proceedings of 29th IEEE Conference on Computer Communications (INFOCOM), 2010
      (276 out of 1575 submissions, acceptance ratio: 17.5%) (slides: .pptx)

    • Delay-Optimal Broadcast for Multi-Hop Wireless Networks Using Self-Interference Cancellation
    • Xinyu Zhang, Kang G. Shin
      To appear in IEEE Transactions on Mobile Computing (TMC), 2011

  • Sensing, scheduling and pricing in cognitive radio networks.
  • Related publications:
    • Spatio-Temporal Fusion for Small-scale Primary Detection in Cognitive Radio Networks
    • Alexander W. Min, Xinyu Zhang, Kang G. Shin
      In the Proceedings of 29th IEEE Conference on Computer Communications (INFOCOM, mini-conference), 2010
      (106 mini-conference papers out of 1575 submissions)

    • Detection of Small-scale Primary Users in Cognitive Radio Networks.
    • Alexander W. Min, Xinyu Zhang, Kang G. Shin
      In IEEE Journal on Selected Areas in Communications (JSAC), Special Issue on Cognitive Radio Networking and Communications, 2011

    • Exploiting Spectrum Heterogeneity in Dynamic Spectrum Market.
    • Alexander W. Min, Xinyu Zhang, Jaehyuk Choi, Kang G. Shin
      To appear in IEEE Transactions on Mobile Computing (TMC), 2011

  • Full-duplex wireless networks.
  • Related publications:
    • The Case for Antenna Cancellation for Scalable Full Duplex Wireless Communications
    • Mohammad A. Khojastepour, Karthikeyan Sundaresan, Sampath Rangarajan, Xinyu Zhang, Sanaz Barghi
      In 10th ACM Workshop on Hot Topics in Networks (HotNets), 2011
      (24 out of 119 submissions, acceptance ratio: 20%)



  • Projects at the University of Toronto:

  • Economics in Network Coding.
  • Related publications:
    • On the Market Power of Network Coding in P2P Content Distribution Systems.
    • Xinyu Zhang, Baochun Li
      In the Proceedings of 28th IEEE Conference on Computer Communications (INFOCOM), 2009
      (282 out of 1435 submissions, acceptance ratio: 19.7%) (slides: .pdf)
    • On the Market Power of Network Coding in P2P Content Distribution Systems.(Extended version)
    • Xinyu Zhang, Baochun Li
      In IEEE Transactions on Parallel and Distributed Systems (TPDS), 2011

  • Multipath network coding for lossy wireless mesh networks
  • Related publications:
    • Optimized Multipath Network Coding in Lossy Wireless Networks.
    • (Extended version of the ICDCS'08 paper)
      Xinyu Zhang, Baochun Li
      In IEEE Journal on Selected Areas in Communications (JSAC), Special Issue on Network Coding for Wireless Communication Networks, 2009
    • Dice: a Game Theoretic Framework for Wireless Multipath Network Coding.
    • Xinyu Zhang, Baochun Li
      In the Proceedings of the 9th ACM International Symposium on Mobile Ad Hoc Networking and Computing (MobiHoc), 2008
      (44 out of 300 submissions, acceptance ratio: 14.7%)
    • Optimized Multipath Network Coding in Lossy Wireless Networks.
    • Xinyu Zhang, Baochun Li
      In the Proceedings of the 28th International Conference on Distributed Computing Systems (ICDCS), 2008.
      (102 out of 638 submissions, acceptance ratio: 16%)

  • Network coding for multichannel wireless networks, including multi-channel multi-radio, MIMO and OFDMA based systems.
  • Related publications:
    • Network Coding Aware Dynamic Subcarrier Assignment in OFDMA Wireless Networks.
    • (Extended version of the ICC'08 paper)
      Xinyu Zhang, Baochun Li
      In IEEE Transactions on Vehicular Technology (TVT), 2011
    • On the Benefits of Network Coding in Multi-Channel Wireless Networks.
    • Xinyu Zhang, Baochun Li
      In the 5th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad hoc Communications and Networks (SECON), 2008
      (64 out of 304 submissions, acceptance ratio: 21%)
    • Network Coding Aware Dynamic Subcarrier Assignment in OFDMA Wireless Networks.
    • Xinyu Zhang, Baochun Li
      In the Proceedings of the IEEE International Conference on Communications (ICC), 2008
      (1128 out of 3,135 submissions, acceptance ratio: 36%)
    • Joint Network Coding and Subcarrier Assignment in OFDMA-Based Wireless Networks.
    • Xinyu Zhang, Baochun Li
      In the Proceedings of the Fourth Workshop on Network Coding, Theory, and Applications (NetCod), 2008

  • Distributed emulation of large-scale wireless networks.
  • Related publications:
    • Drift: A Highly Condensed Emulation Framework for Mobile Nodes in Server Clusters. (Regular paper)
    • Xinyu Zhang, Baochun Li
      In the Proceedings of the 5th IEEE International Conference on Mobile Ad Hoc and Sensor Systems (MASS), 2008
      (26 regular plus 5 extended papers out of over 250 submissions, acceptance ratio: 12.4%)