Achievable Channel Capacity of Cooperative Wireless Communication Systems
Research Student: Guchun Zhang, M.Sc., B.Eng.
Supervisor: Dr. X Peng
Cooperative communications aims to exploit as much diversity as conventional multiple-antenna technology can provide by utilizing distributed antennas on different wireless terminals. It is regarded as a promising technology to support higher data throughput and larger transmission range in mobile cellular network, wireless LAN, wireless sensor networks and wireless backbone networks such as WiMax.
Our research is focused on the fundamental issues of the technology at the PHY layer and MAC layer. We investigate the effect of correlation on the performances of different proposed cooperation protocols and look into the desired role of relay nodes that can optimize the diversity gains generated against the restriction on resource costs. We also implement a test bed based on wireless sensor nodes to examine the practically achievable benefits brought to the networks through relaying and cooperation.
X. Gu, X.-H. Peng and G.-C. Zhang, “MIMO systems for broadband wireless communications,” BT Tech. Journal, Vol. 24, No. 2, April 2006.
G.-C. Zhang, X. Gu and X.-H. Peng, “An improved urban macrocellular model for MIMO wireless systems,” in Proc. ICST CHINACOM, Oct. 2006.
G.-C. Zhang, X.-H. Peng and X.-Y. Gu, “On capacity of cooperative communications in correlated fading channels,” in Proc. IEEE Int. Conf. on Wireless Communications, Networking and Mobile Computing (WiCom), Sept. 2007.
G.-C. Zhang, X.-H. Peng and X.-Y. Gu, “Implementation and performance evaluation of an experimental wireless relay sensor network,” in Proc. IEEE 10th Int. Conf. on High Performance Computing and Communications (HPCC), Sept. 2008.
G.-C. Zhang, X.-H. Peng and X.-Y. Gu, “Effect of fading correlation on the performance of cooperative systems with multiple relays,” in Proc. IEEE 5th Int. Symp. on Wireless Communication Systems (ISWCS), Oct. 2008.
G.-C. Zhang, X.-H. Peng and X.-Y. Gu, “Performance analysis of an experimental wireless relay sensor network,” Concurrency and Computation: Practice and Experience, Wiley, 2009.
X.-H. Peng, G.-C. Zhang and X.-Y. Gu, “Cooperative data dissemination for telecare systems via wireless pervasive networking,” in Proc. IEEE Int. Workshop on Ubiquitous Healthcare and Supporting Technologies, May 2010.