Dual Adaptive Turbo Coded Modulation for Integrated Multimedia Service Transmission
This paper proposes a cross-layer dual adaptive coded modulation architecture using turbo codes for mobile multimedia communication, which adapts to both the varying channel characteristics and the QoS of various multimedia services simultaneously to increase the average system throughput substantially. A pragmatic channeladaptive turbo coded modulation scheme, which comes within 2.5 dB of the Shannon limit, is optimally designed,and then a QoS- adaptive scheme is superimposed to build the dual adaptive architecture. Simulation results show that the novel dual adaption reduces the gap from the fading channel capacity to 2 dB when assuming different services occur in equal probability and the service duration follows exponential distribution.
Dual adaption Turbo coded modulation Fading channels Multimedia services Spectral efficiency
Jiancun ZUO Changqian ZHU Shaoyu WANG Wentao SONG Hanwen LUO Youyun XU
Department of Electronic Engineering, Shanghai Jiaotong University, Shanghai 200030, China School of Computer & Communication Engineering, Southwest Jiaotong University, Chengdu 610031, China
国际会议
成都
英文
858-862
2003-08-27（万方平台首次上网日期，不代表论文的发表时间）