Jun Cai, Ph.D., P.Eng.

Associated Professor & Associate NSERC Industrial Research Chair

Communication and Network Engineering Research (CNER) Group

Department of Electrical and Computer Engineering

University of Manitoba

Winnipeg, Manitoba, Canada  R3T 5V6

Telephone: 1-204-4746419

Fax: 1-204-2614639

Email: jcai@ee.umanitoba.ca

Research Interests

• Resource management in complex systems

• Sustainable development with advanced communications and information technologies

• Cognitive radio and dynamic spectrum management

• Cooperative diversity and wireless relay

• Rh Award for Outstanding Contributions to Scholarship and Research in the Applied Sciences Category, University of Manitoba, 2012.
• Invited paper, “Analysis of cognitive radio networks with channel aggregation and imperfect sensing”, IEEE Cognitive and Resource-aware Wireless Communications (CRWC) Workshop, Hawaii, Aug. 1-4, 2011.
• IEEE GLOBECOM 2010 Outstanding Service Award, 2010
• Invited paper, “Balance the trade-off between the accessibility and performance of distributed routing schemes in multi-hop wireless networks”, IEEE VTC 2010-Fall, Ottawa, Canada, Sept. 6-9, 2010.
• CFI Leaders Opportunity Fund award, Canada Foundation for Innovation (CFI), April 2009
• Delegate of Dragon 100 Young Chinese Leaders Forum, The Dragon Foundation, August 2008
• Associated NSERC Industrial Research Chair, Natural Sciences and Engineering Research Council of Canada (NSERC), July 2006 - June 2012
• NSERC Postdoctoral Fellowship (PDF), Natural Sciences and Engineering Research Council of Canada (NSERC), June 2004 - May 2006
• Invited paper, “Medium access control in ultra-wideband (UWB) networks,” IEEE Trans. Vehicular Technology, vol. 54, no. 5, pp. 1663-1677, Sept. 2005.
  　

Selected Journal Publications

• W. Wang, J. Cai, A. S. Alfa, C. K. Soong, and S. Li, “Adaptive dual-radio spectrum sensing scheme in cognitive radio networks”, Wireless Communications and Mobile Computing, to appear.
• W. Yin, P. Ren, J. Cai, and Z. Su, “A pilot-aided detector for spectrum sensing of DVB-T signals in cognitive radio networks”, Wireless Communications and Mobile Computing, to appear.
• B. Wang, D. Zhao, and J. Cai, “Admission control and packet scheduling in a cognitive radio network with spectrum underlay”, IEEE Trans. Wireless Communications, vol. 10, no. 11, pp. 3852-3863, Nov. 2011.
• T. M. N. Ngatched, A. S. Alfa, and J. Cai, “A weighted queue-based model for correlated Rician fading channels”, IEEE Trans. Communications, vol. 59, no. 11, pp. 3049-3058, Nov. 2011.
• T. M. N. Ngatched, A. S. Alfa, and J. Cai, “Hybrid linear programming based decoding of finite-geometries LDPC codes”, IEEE Trans. Communications, vol. 59, no. 3, pp. 740-749, Mar. 2011.
• P. Ren, Q. Yuan, R. Wang, and J. Cai, “Low complexity construction for quasi-cyclic low-density parity-check codes by progressive-block growth”, Science in China Series F: Information Sciences, vol. 54, no. 2, pp. 371-380, Feb. 2011.
• W. Wang, J. Cai, and A. S. Alfa, “Distributed routing schemes with accessibility consideration in multi-hop wireless networks”, IEEE Trans. Wireless Communications, vol. 9, no. 10, pp. 3178-3188, Oct. 2010.
• W. Wang, Z. Guo, J. Cai, X. Shen, and C. Chen, “Multiple frequency reuse schemes in the two-hop IEEE 802.16j wireless relay networks with asymmetrical topology”, Computer Communications, vol. 32, no. 11, pp. 1298-1305, July 2009.
• L. Lei, C. Lin, J. Cai, and X. Shen, “Performance analysis of wireless opportunistic schedulers using stochastic Petri nets”, IEEE Trans. Wireless Communications, vol. 8, no. 4, pp. 2076-2087, Apr. 2009.
• J. Cai, A. S. Alfa, P. Ren, X. Shen, and J. W. Mark, “Packet level performance analysis in wireless user-relaying networks”, IEEE Trans. Wireless Communications, vol. 7, no. 12, pp. 5336-5345, Dec. 2008.
• L. Lei, C. Lin, J. Cai, and X. Shen, “Flow level performance of opportunistic OFDM-TDMA and OFDMA networks”, IEEE Trans. Wireless Communications, vol. 7, no. 12, pp. 5461-5472, Dec. 2008.
• W. Wang, Z. Guo, X. Shen, C. Cheng, and J. Cai, “Dynamic bandwidth allocation for QoS provisioning in IEEE 802.16 networks with ARQ-SA”, IEEE Trans. Wireless Communications, vol. 7, no. 9, pp. 3477-3487, Sept. 2008.
• J. Cai, X. Shen, J. W. Mark, and A. S. Alfa, “Semi-distributed user relaying algorithm for amplify-and-forward wireless relay networks,” IEEE Trans. Wireless Communications, vol. 7, no. 4, pp. 1348-1357, Apr. 2008.
• J. Xu, X. Shen, J. W. Mark, and J. Cai, “Quasi-optimal channel assignment for real-time video in OFDM wireless systems”, IEEE Trans. Wireless Communications, vol. 7, no. 4, pp. 1417-1427, Apr. 2008.
• J. Cai, K. Liu, X. Shen, J. W. Mark, and T. Todd, “Power allocation and scheduling for MAC layer design in UWB networks,” IEEE Trans. Vehicular Technology, vol. 57, no. 2, pp. 1103-1112, Mar. 2008.

Selected Conference Publications

• T. M. N. Ngatched, A. S. Alfa, and J. Cai, “Performance analysis of cognitive radio networks with channel assembling and imperfect sensing”, IEEE ICC’12, Ottawa, Canada, June 10-15, 2012.
• B. Kasiri, J. Cai, A. S. Alfa, and W. Wang, “Distributed cooperative attack on the multi-channel spectrum sensing: a coalitional game study”, IEEE Globecom’11, Houston, Dec. 5-9, 2011.
• B. Kasiri, J. Cai, and A. S. Alfa, “Secure cooperative multi-channel spectrum sensing in cognitive radio networks”, IEEE MILCOM’11, Baltimore, Nov. 7-10, 2011.
• Z. Yin, H. Ma, X. Mao, and J. Cai, “A novel scheme for multiple-access interference mitigation with low complexity”, International Conference on Electrical, Information and Mechatronics, Jiaozuo, China, Dec. 23-25, 2011.
• S. Cui and J. Cai, “Demand-matching spectrum sharing in cognitive radio networks: a classified game”, WICON’11, Xi’an, China, Oct. 19-21, 2011.
• T. M. N. Ngatched, A. S. Alfa, and J. Cai, “Analysis of cognitive radio networks with channel aggregation and imperfect sensing”, (invited paper) IEEE Cognitive and Resource-aware Wireless Communications (CRWC) Workshop, Hawaii, Aug. 1-4, 2011.
• W. Wang, B. Kasiri, J. Cai, and A. S. Alfa, “Channel assignment of cooperative spectrum sensing in multi-channel cognitive radio networks”, IEEE ICC’11, Kyoto, Japan, June 5-9, 2011.
• T. M. N. Ngatched, A. S. Alfa, and J. Cai, “Near optimum majority-logic based decoding of low-density parity-check codes”, IEEE ICC’11, Kyoto, Japan, June. 5-9, 2011.
• W. Wang, B. Kasiri, J. Cai, and A. S. Alfa, “Distributed cooperative multi-channel spectrum sensing based on dynamic coalitional game”, IEEE Globecom’10, Miami, FL, Dec. 6-10, 2010.
• T. M. N. Ngatched, A. S. Alfa, J. Cai, “An improvement on the soft reliability-based iterative majority-logic decoding algorithm for LDPC codes”, IEEE Globecom’10, Miami, FL, Dec. 6-10, 2010.
• B. Wang, D. Zhao, and J. Cai, “Admission control and packet scheduling in a cognitive radio network with spectrum underlay”, IEEE Globecom’10, Miami, FL, Dec. 6-10, 2010.
• W. Wang, J. Cai, and A. S. Alfa, “Balance the trade-off between the accessibility and performance of distributed routing schemes in multi-hop wireless networks”, (invited paper) IEEE VTC 2010-Fall, Ottawa, Canada, Sept. 6-9, 2010.
• T. M. N. Ngatched, A. S. Alfa, and J. Cai, “Cooperative sensing with transmit diversity based on randomized STBC in CR networks”, IWCMC 2010, Caen, France, June 28-July 2, 2010.
• R. Yu, J. Chen, L. Song, Y. Zhang, and J. Cai, “A subspace coding approach to MIMO compound broadcast channel”, IWCMC 2010, Caen, France, June 28-July 2, 2010.
• B. Kasiri, J. Cai, “Effects of correlated shadowing on soft decision fusion in cooperative spectrum sensing”, IEEE INFOCOM-2010 Workshop on Cognitive Wireless Communications and Networking, San Diego, CA, Mar. 15-19, 2010.
• W. Wang, J. Cai, and A. S. Alfa, “Receiver-aided spectrum sensing scheme with spatial differentiation in OFDM based cognitive radio networks”, IEEE INFOCOM-2010 Workshop on Cognitive Wireless Communications and Networking, San Diego, CA, Mar. 15-19, 2010.
• G. Feng, W. Wang, and J. Cai, “Reliable busy tone multiple access protocol for safety applications in vehicular ad hoc networks”, IEEE ICC’10, Cape Town, South Africa, May 23-27, 2010.
• T. Ngatched, A. S. Alfa, and J. Cai, “Hybrid decoding of LDPC codes based on finite geometries”, IEEE ICC’10, Cape Town, South Africa, May 23-27, 2010.
• T. Ngatched, A. S. Alfa, and J. Cai, “Efficient implementation of interior point decoding based on barrier function for LDPC codes”, IEEE WCNC’10, Sydney, Australia, Apr. 18-21, 2010.
• W. Wang, J. Cai, and A. S. Alfa, “Greedy sub-channel redistribution routing scheme in multi-hop wireless OFDMA network”, in Proc. of IEEE Globecom’09, Honolulu, HI, Nov. 30-Dec. 4, 2009.
• S. Saha, J. Cai, and A. S. Alfa, “Routing in IEEE 802.16 based distributed wireless mesh networks”, in Proc. of Chinacom’09, pp. 1-5, Xi’an, China, Aug. 26-28, 2009.
• W. Wang, J. Cai, Z. Guo, C. Cheng, and X. Shen, “A new four-antenna based structure for cellular networks with frequency reuse factor of one”, in Proc. of IEEE ICC’09, pp. 1-5, Dresden, Germany, June 14-18, 2009.
• P. Ren, J. Feng, P. Hu, and J. Cai, “Energy saving ad-hoc on-demand distance vector routing for mobile ad-hoc networks”, in Proc. of IEEE ICC’09, pp. 1-5, Dresden, Germany, June 14-18, 2009.
• J. Cai and A. S. Alfa, “Optimal channel sensing in wireless communication networks with cognitive radio”, in Proc. of IEEE ICC’09, pp. 1-5, Dresden, Germany, June 14-18, 2009.
• H. Abu-Ghazaleh, J. Cai, and A. S. Alfa, “Performance analysis for polling service in IEEE 802.16 networks under PMP mode”, in Proc. of IEEE IWCMC’008, pp. 819-824, Chania, Greece, Aug. 6-8, 2008.
• W. Wang, Z. Guo, J. Cai, C. Chen, and X. Shen, “Isolation band based frequency reuse scheme for IEEE 802.16j wireless relay networks”, in Proc. of QShine’08, Hong Kong, July 28-31, 2008.
• J. Wang, J. Cai, and A. S. Alfa, “New channel model for wireless communications: finite-state phase-type semi-Markov channel model”, in Proc. of IEEE ICC’08, pp. 4461-4465, Beijing, China, May 19-23, 2008.

Current Graduate Students (January, 2011)

Doctoral Students

• Hong Zhang
• Pengxiang Xiang
• Behzad Kasiri Mashhad
• Zuoliang Yin

Master's Students

• Borui Tu
• Shaohang Cui

Post Doctoral Fellows

• Dr. Weiwei Wang
• Dr. Telex Magloire Ngatched Nkouatchah

Sabbatical Visitors

• Professor Xiaolong Li
• Professor Yonghong Dai

Research Associates

• Mr. Tyler Listoe
• Mr. Jieping Shao

• Associate Editor, Journal of Computer Systems, Networks, and Communications
• Guest Editor, ACM Mobile Networks and Applications, Special Issue of International ICST Wireless Internet Conference (WICON) 2011
• TPC Track Co-Chair for IEEE VTC 2012 – Fall Wireless Applications and Services Track
• TPC Chair for WICON 2011 MAC Track
• Publicity Co-Chair for IWCMC 2011
• Symposium Co-Chair for IEEE Globecom 2010 Wireless Communications Symposium
• Publicity Co-Chair for IWCMC 2010
• Symposium Co-Chair for IWCMC 2008 General Symposium
• Registration Chair for QShine 2005
• Technical Program Committee Members for (selected)
  • 2012

IEEE International Conference on Computer Communications (INFOCOM) 2012
IEEE International Conference on Communications (ICC) 2012 Ad-hoc and Sensor Networking Symposium
IEEE International Conference on Communications (ICC) 2012 Wireless Networking Symposium
IEEE Global Communications Conference (GLOBECOM) 2012 Wireless Communications Symposium
IEEE Wireless Communications and Networking Conference (WCNC) 2012 Mobile and Wireless Networks Track
IEEE International Conference on Smart Grid Communications (SmartGridComm) 2012 The Whole Picture Symposium
IEEE International Conference on Communications in China (ICCC) 2012 Communications QoS and Reliability Symposium
International Conference on Computing, Networking and Communications (ICNC) 2012 Wireless Communications Symposium

• 2011

IEEE International Conference on Computer Communications (INFOCOM) 2011
IEEE International Conference on Communications (ICC) 2011 Wireless Networking Symposium
IEEE Global Communications Conference (GLOBECOM) 2011 Wireless Communications Symposium
IEEE Wireless Communications and Networking Conference (WCNC) 2011
IEEE Vehicular Technology Conference (VTC) 2011 – Fall Wireless Networks Track
IEEE International Conference on Computer Communications and Networks (ICCCN) 2011 – Broadband Access Technologies Track
IEEE International Conference on Communication Technology (ICCT) 2011
IEEE International Conference on Computer and Information Technology (CIT) 2011
International Congress on Ultra Modern Telecommunications and Control Systems (ICUMT) 2011
International Conference on Advanced Computing (ICoAC) 2011

• 2010

IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) 2010
IEEE International Conference on Computer Communications (INFOCOM) 2010
IEEE International Conference on Communications (ICC) 2010 Wireless Networking Symposium
IEEE Wireless Communications and Networking Conference (WCNC) 2010 Networks Symposium
International Congress on Ultra Modern Telecommunications and Control Systems (ICUMT) 2010
International Conference on Wireless Communications and Signal Processing (WCSP) 2010
International Conference on Wireless Communications Frontiers (WCF) 2010
Queen’s Biennial Symposium on Communications (QBSC) 2010
International Wireless Communications and Mobile Computing Conference (IWCMC) 2010 Mobile Computing Symposium
International Wireless Communications and Mobile Computing Conference (IWCMC) 2010 Communication and Information Theory Symposium

International Wireless Communications and Mobile Computing Conference (IWCMC) 2010 Next Generation Mobile Networks Symposium