A joint adaptive packet size and modulation scheme combined with SR-ARQ over correlated fading channels

被引：0
作者：
Xiao, JF [1 ]
Cheng, SD [1 ]
机构：
[1] Beijing Univ Posts & Telecommun, State Key Lab Networking & Switching, Beijing 100876, Peoples R China
来源：
2005 INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING PROCEEDINGS, VOLS 1 AND 2 | 2005年
关键词：
adaptive modulation; adaptive packet size; ARQ; correlated fading channel; Markov channel;
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
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.
引用
收藏
页码：458 / 463
页数：6
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