A Joint Adaptive Packet Size and Modulation Scheme Combined With SR-ARQ Over Correlated Fading Channels
Conventional adaptive transmission schemes perform poorly in wireless correlated slow-fading channels. In this paper, a joint adaptive packet size and modulation (APSM) scheme combined with selective repeat automatic repeat request (SR-ARQ) is proposed. We apply a multi-state Markov system model for analyzing the performance of APSM/SR-ARQ systems and optimizing the selection of modulation levels and packet sizes in correlated fading channels, which is also described by a finite-state Markov chain. A general closed-form expression of the average throughput for APSM/SR-ARQ is presented. Numerical results show that our adaptive scheme combined with SR-ARQ can obtain a good performance in correlated fading channels.
Adaptive modulation Adaptive packet size ARQ Correlated fading channel Markov channel
Junfeng XIAO Jing QIU Shiduan CHENG
State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecomm School of Telecommunications Engineering Beijing University of Posts and Telecommunications Beijing,
国际会议
武汉
英文
458-463
2005-09-23（万方平台首次上网日期，不代表论文的发表时间）