Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Auction-Based Resource Allocation for Cooperative Video Transmission Protocols over Wireless Networks | Hindawi Publishing Corporation EURASIP Journal on Advances in Signal Processing Volume 2009 Article ID 980304 12 pages doi 2009 980304 Research Article Auction-Based Resource Allocation for Cooperative Video Transmission Protocols over Wireless Networks Zhu Han 1 Guan-Ming Su 2 Haohong Wang 3 Song Ci 4 and Weifeng Su5 1 Electrical and Computer Engineering Department University of Houston Houston TX USA 2Marvell Semiconductor Inc. Santa Clara CA USA 3 TCL-Thomson Electronics Santa Clara CA USA 4 Computer and Electronics Engineering Department University of Nebraska-Lincoln NE USA 5 Electrical Engineering Department State University of New York Buffalo NY USA Correspondence should be addressed to Zhu Han hanzhu22@ Received 22 October 2008 Revised 25 February 2009 Accepted 3 May 2009 Recommended by Eduard A. Jorswieck Cooperative transmission has been proposed as a novel transmission strategy that takes advantage of broadcast nature of wireless networks forms virtual MIMO system and provides diversity gains. In this paper wireless video transmission protocols are proposed in which the spectrum resources are first allocated for the source side to broadcast video packets to the relay and destination and then for the relay side to transmit side information generated from the received packets. The proposed protocols are optimized to minimize the end-to-end expected distortion via choosing bandwidth power allocation configuration of side information subject to bandwidth and power constraints. For multiuser cases most of current resource allocation approaches cannot be naturally extended and applied to the networks with relay nodes for video transmission. This paper extends the share auction approach into the cooperative video communication scenarios and provides a near-optimal solution for resource allocation. Experimental results have demonstrated that the proposed approach has significant advantage of up to 4 dB gain in single user case and dB gain .