- Selected Publications:
(Click here for links to electronic copies of all papers)
(Copyright notices)

Spectrum and Power Allocation in Wireless Cooperative Communication

• M. Hajiaghayi, M. Dong, and B. Liang, “Jointly optimal bit loading, channel pairing and power allocation for multi-channel relaying,” in Proceedings of the IEEE Conference on Computer Communications (INFOCOM), Orlando, Florida, March 2012.
• M. Hajiaghayi, M. Dong, and B. Liang, “Jointly optimal channel and power assignment for dual-hop multi-channel multi-user relaying,”IEEE Journal on Selected Areas in Communications, vol. 30, no. 9, pp. 1806 – 1814, October 2012. Preprint: http://arxiv.org/abs/1102.5314. 
• M. Hajiaghayi, M. Dong, and B. Liang, “Jointly optimal channel pairing and power allocation for multi-channel multi-hop relaying,” IEEE Transactions on Signal Processing, vol. 59, no. 10, pp. 4998 – 5012, September 2011.
• M. Hajiaghayi, M. Dong, and B. Liang, “Maximizing lifetime in relay cooperation through energy-aware power allocation,” IEEE Transactions on Signal Processing, vol. 58, no. 8, pp. 4354 – 4366, August 2010.
• M. Hajiaghayi, M. Dong, and B. Liang, “Using limited feedback in power allocation design for a two-hop relay OFDM system,” in Proceedings of the IEEE International Conference on Communications (ICC), Dresden, Germany, June 2009.

Network Pricing and Economics

• W. Wang, D. Niu, B. Li, and B. Liang, “Dynamic cloud resource reservation via cloud brokerage,” to be presented in IEEE International Conference on Distributed Computing Systems (ICDCS), Philadelphia, Pennsylvania, July 2013.
• W. Wang, B. Li, and B. Liang, “To reserve or not to reserve: optimal online multi-instance acquisition in IaaS clouds,” to be presented in USENIX International Conference on Automatic Computing (ICAC), San Jose, California, June 2013.
• W. Wang, B. Liang, and B. Li, “Revenue maximization with dynamic auctions in IaaS cloud markets,” short paper, to be presented in ACM/IEEE International Symposium on Qualify of Service (IWQoS), Montreal, Quebec, June 2013.
• W. Wang, B. Liang, and B. Li, “Designing truthful spectrum double auctions with local markets,” with supplemental document, in press, to appear in the IEEE Transactions on Mobile Computing. (Earlier verion in SECON'11)
• W. Wang, B. Li, and B. Liang, “Towards optimal capacity segmentation with hybrid cloud pricing,” in Proceedings of the IEEE International Conference on Distributed Computing Systems (ICDCS), Macau, China, June 2012.

Stochastic Control in Wireless Networks and Smart Energy Systems

• S. Sun, M. Dong, and B. Liang, "Real-time welfare-maximizing regulation allocation in aggregator-EVs Ssystems," in Proceedings of the IEEE INFOCOM Workshop on Communications and Control for Smart Energy Systems, Turin, Italy, April 2013.
  
• H. Ju, B. Liang, J. Li, and X. Yang, “Dynamic power allocation for throughput utility maximization in interference-limited networks,” IEEE Wireless Communications Letters, vol. 2, no. 1, pp. 22 – 25, February 2013.
• M. Lotfinezhad, B. Liang, and E. Sousa, “Optimal control of constrained cognitive radio networks with dynamic population size,” in Proceedings of the IEEE Conference on Computer Communications (INFOCOM), San Diego, California, March 2010.
• M. Lotfinezhad, B. Liang, and E. Sousa, “On stability region and delay performance of linear-memory randomized scheduling for time-varying networks,” IEEE/ACM Transactions on Networking, vol. 17, no. 6, pp. 1860 – 1873, December 2009.
• M. Lotfinezhad, B. Liang, and E. Sousa, “Dynamic control of tunable sub-optimal algorithms for scheduling of time-varying wireless networks,” in Proceedings of the IEEE International Workshop on Quality of Service (IWQoS), Enschede, The Netherlands, June 2008. Extended version at http://arxiv.org/abs/0903.4594

• Y. Lin, B. Liang, and B. Li, “SlideOR: oline opportunistic network coding in wireless mesh networks,” in Proceedings of the Mini-Conference track of the IEEE Conference on Computer Communications (INFOCOM), San Diego, California, March 2010.
• Y. Lin, B. Liang, and B. Li, “Passive loss inference in wireless sensor networks based on network coding,” in Proceedings of the IEEE Conference on Computer Communications (INFOCOM), Rio de Janeiro, Brazil, April 2009.
• Y. Lin, B. Liang, and B. Li, “Priority random linear codes in distributed storage systems,” IEEE Transactions on Parallel and Distributed Systems, in IEEE Transactions on Parallel and Distributed Systems, vol. 20, no. 11, pp. 1653-1667, November 2009.
• Y. Lin, B. Li, and B. Liang. “CodeOR: opportunistic routing in wireless mesh networks with segmented network coding,” in Proceedings of the 16th IEEE International Conference on Network Protocols (ICNP), Orlando, Florida, October 2008.
• Y. Lin, B. Liang, and B. Li, "Geometric random linear codes in sensor networks," in Proceedings of the IEEE International Conference on Communications (ICC), Beijing, China, May 2008.
• Y. Lin, B. Li, and B. Liang, "Efficient network coded data transmissions in disruption tolerant networks," in Proceedings of IEEE INFOCOM, Pheonix, Arizona, April 2008.
• Y. Lin, B. Li, and B. Liang, "Stochastic analysis of network coding in epidemic routing," IEEE Journal on Selected Areas in Communications, Special Issue on Delay and Disruption Tolerant Wireless Communication Systems, vol. 26, no. 5, pp. 794 – 808, June 2008.
• Y. Lin, B. Liang, and B. Li, "Data persistence in large-scale sensor networks with decentralized fountain codes," in Proceedings of IEEE INFOCOM, May 2007. (This version contains post-publication corrections.)

• W. Bao and B. Liang, "On the insensitivity of user distribution in multicell networks under general mobility and session patterns," in Proceedings of IEEE INFOCOM Mini Conference, Turin, Italy, April 2013.
• A. Farbod and B. Liang, “Structured admission control policies in heterogeneous wireless networks with mesh underlay,” in Proceedings of the IEEE Conference on Computer Communications (INFOCOM), Rio de Janeiro, Brazil, April 2009.
• A. H. Zahran, B. Liang, and A. Saleh, “Mobility modeling and performance evaluation of heterogeneous wireless networks,” IEEE Transactions on Mobile Computing, vol. 7, no. 8, pp. 1041 – 1056, August 2008.
• A. Farbod and B. Liang, “Efficient structured policies for admission control in heterogeneous wireless networks,” ACM/Springer Mobile Networks and Applications, vol. 12, no. 5, pp. 309 – 323, December 2007.
• J. Lau and B. Liang, “Optimal pricing for selfish users and prefetching in heterogeneous wireless networks,” in Proceedings of the IEEE International Conference on Communications (ICC), June 2007.
• B. Liang, S. Drew, and D. Wang, “Performance of multiuser network-aware prefetching in heterogeneous wireless systems,” ACM/Springer Wireless Networks, vol. 16, no. 1, pp. 99 – 110, January 2009 (Online First edition appeared February 2007).
• A. H. Zahran and B. Liang, “A generic framework for mobility modeling and performance analysis in next-generation heterogeneous wireless networks,” IEEE Communications Magazine, vol. 45, no. 9, pp. 92 - 99, September 2007.
• A. H. Zahran, B. Liang, and A. Saleh, "Impact of technology overlap in next-generation wireless heterogeneous systems," in Proceedings of IFIP Networking, Atlanta, Georgia,  May 2007.
• A. H. Zahran, B. Liang, and A. Saleh, “Signal threshold adaptation for vertical handoff in heterogeneous wireless networks,” ACM/Spring Mobile Networks and Applications, Special Issue on Soft Radio Enabled Heterogeneous Networks, vol. 11, no. 4, pp. 625-640, August 2006.
• Y. Fang, Z. J. Haas, B. Liang, and Y.-B. Lin, “TTL prediction schemes and effects of inter-update time distribution on wireless data access,” ACM/Kluwer Wireless Networks, vol. 10, no. 5, pp. 607–619, September 2004.
• B. Liang and Z. J. Haas, “Predictive distance-based mobility management for multi-dimensional PCS networks,” IEEE/ACM Transactions on Networking, vol. 11, no. 5, pp. 718-732, October 2003.
• B. Liang and Z. J. Haas, “Predictive distance-based mobility management for PCS networks,” in Proceedings of the IEEE International Conference on Computer Communication (INFOCOM), New York, New York, March 1999.
  

• G. Ji and B. Liang, "Stochastic rate control for scalable VBR video streaming over wireless networks," in Proceedings of the IEEE Global Telecommunications Conference (GLOBECOM), Honolulu, Hawaii, November 2009.
• G. Ji and B. Liang, and A. Saleh, “Buffer schemes for VBR video streaming over heterogeneous wireless networks,” in Proceedings of the IEEE International Conference on Communications (ICC), Dresden, Germany, June 2009.
• G. Liang and B. Liang, "Balancing interruption frequency and buffering penalties in VBR video streaming," in Proceedings of IEEE INFOCOM, Anchorage, Alaska, May 2007.
• G. Liang and B. Liang, “Effect of delay and buffering on jitter-free streaming over random VBR channels,” IEEE Transactions on Multimedia, vol. 10, no. 6, pp. 1128 – 1141, October 2008.

Signal Processing with Multi-antenna/Multi-channel Relays

• M.Dong, M. Hajiaghayi, and B. Liang, “Optimal fixed gain linear processing for amplify-and-forward multichannel relaying,” IEEE Transactions on Signal Processing, vol. 60, no. 11, pp. 6108 – 6114, November 2012.
• M. Dong, Q. Xiao, and B. Liang, “Optimal multi-antenna relay beamforming with per-antenna power control,” in Proceedings of the IEEE International Conference on Communications (ICC), June 2012.

Capacity of Wireless Relaying

• S. A. Hejazi and B. Liang, “Throughput analysis of multiple access relay channel under collision model,” in Proceedings of the IEEE Conference on Computer Communications (INFOCOM), San Diego, California, March 2010.
• S. Vakil and B. Liang, “Effect of joint cooperation and multi-hopping on the capacity of wireless networks,” in Proceedings of the IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks (SECON), San Francisco, California, 2008. Extended version at http://arxiv.org/abs/0805.3569
• S. Vakil and B. Liang, "Decentralized multiuser diversity with cooperative relaying in wireless sensor networks," in Proceedings of the IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks (SECON), June 2007.
• S. Vakil and B. Liang, “Cooperative diversity in interference limited wireless networks,” IEEE Transactions on Wireless Communications, vol. 7, no. 8, pp. 3185 – 3195, August 2008.

Topology Control in Peer-to-Peer Streaming 

• T. Small, B. Li, and B. Liang, "Topology affects the efficiency of network coding in peer-to-peer networks," in Proceedings of the IEEE International Conference on Communications (ICC), Beijing, China, May 2008.
• T. Small, B. Liang, and B. Li. "Scaling laws and tradeoffs in peer-to-peer live multimedia streaming," in Proceedings of ACM Multimedia, Santa Barbara, California, October 2006.
• T. Small, B. Li, and B. Liang, “Outreach: peer-to-peer topology construction towards minimized server bandwidth costs,” IEEE Journal on Selected Areas in Communications, Special Issue on Peer-to-Peer Communications and Applications, vol. 25, no. 1, pp. 35-45, January 2007.

Fairness and Prioritization

• W. Wang, B. Liang, and B. Li, “Multi-resource generalized processor sharing for packet processing,” to be presented in ACM/IEEE International Symposium on Qualify of Service (IWQoS), Montreal, Quebec, June 2013.
• J. Deng, Y. Han, and B. Liang, “Fairness index based on variational distance,”in Proceedings of the IEEE Global Telecommunications Conference (GLOBECOM), Honolulu, Hawaii, November 2009.
• B. Liang and M. Dong, “Packet prioritization in multihop latency aware scheduling for delay constrained communication,” IEEE Journal on Selected Areas in Communications, Special Issue on Cross-Layer Optimized Wireless Multimedia Communications, vol. 25, no. 4, pp. 819-930, May 2007. (Early version in ACM MobiHoc'06)
• J. Eshet and B. Liang, “Randomly ranked mini slots for fair and efficient medium access control in ad hoc networks,” IEEE Transactions on Mobile Computing, vol. 6, no. 5, pp. 481-493, May 2007.

Cooperation and Clustering for Data Aggregation in Sensor Networks

• M. Lotfinezhad, B. Liang, and E. Sousa, “Adaptive cluster-based data collection in sensor networks with direct sink access,” IEEE Transactions on Mobile Computing, vol. 7, no. 7, pp. 884 – 897, July 2008.
• K. Yuen, B. Liang, and B. Li, “A distributed framework for correlated data gathering in sensor networks,” IEEE Transactions on Vehicular Technology, vol. 57, no. 1, pp. 578 – 593, January 2008.
• M. Lotfinezhad and B. Liang, “Effect of partially correlated data on clustering in wireless sensor networks,” in Proceedings of the IEEE International Conference on Sensor and Ad hoc Communications and Networks (SECON), Santa Clara, California, October 2004.

Wireless Relay Placement

• A. So and B. Liang, “Optimal placement and channel assignment of relay stations in heterogeneous wireless mesh networks by modified Bender's decomposition,” Elsevier Ad Hoc Networks, vol. 7, no. 1, pp. 118 – 135, January 2009. (invited from IFIP Networking 2007)
• A. So and B. Liang, “Enhancing WLAN capacity by strategic placement of tetherless relay points,” IEEE Transactions on Mobile Computing, vol. 6, no. 5, pp. 522-535, May 2007.
• A. So and B. Liang, “An efficient wireless extension point placement algorithm in urban rectilineal WLANs,” IEEE Transactions on Vehicular Technology, vol. 47, no. 1, pp. 532 – 547, January 2008.

Ad Hoc Networking

• B. Liang and Z. J. Haas, “Hybrid routing in ad hoc networks with a dynamic virtual backbone,” IEEE Transactions on Wireless Communications, vol. 5, no. 6, pp. 1392-1405, June 2006.
• B. Liang and Z. J. Haas, "Optimizing route-cache lifetime in ad hoc networks," in Proceedings of the 22th IEEE INFOCOM, San Francisco, CA, April 2003.
• Z. J. Haas, J. Deng, B. Liang, P. Papadimitratos, and S. Sajama, "Wireless Ad Hoc Networks," in Wiley Encyclopedia of Telecommunications, John G. Proakis, Editor, John Wiley & Sons, New York, 2002.
• B. Liang and Z. J. Haas, "Virtual backbone generation and maintenance for ad hoc network mobility management," in Proceedings of the 19th IEEE INFOCOM, Tel Aviv, Israel, March 2000.
• Z. J. Haas and B. Liang, “Ad-hoc mobility management with randomized database groups,” Proceedings of the IEEE International Conference on Communications (ICC), Vancouver, BC, Canada, June 1999.
• Z. J. Haas and B. Liang, “Ad hoc mobility management with Uniform Quorum Systems,” IEEE/ACM Transactions on Networking, vol. 7, no. 2, pp. 228-240, April 1999.