DELAYS ANALYSIS OF COOPERATIVE TRUNCATED HARQ WITH OPPORTUNISTIC RELAYING AND NOISY FEEDBACK

被引：3
|
作者：
Boujemaa, Hatem [1 ]
机构：
[1] Higher Sch Commun Tunis, TECHTRA Res Unit, Tunis, Tunisia
来源：
2010 IEEE 21ST INTERNATIONAL SYMPOSIUM ON PERSONAL INDOOR AND MOBILE RADIO COMMUNICATIONS (PIMRC) | 2010年
关键词：
HARQ; cooperative communications; opportunistic relaying; Nakagami-m channel; TIME;
D O I：
10.1109/PIMRC.2010.5672052
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, we evaluate the delay experienced by Poisson arriving packets for Cooperative truncated HARQ with opportunistic relaying in the presence of a noisy feedback channel. We derive the theoretical expressions of the expected waiting time and the packet's sojourn time in the queue of truncated opportunistic cooperative ARQ and Hybrid ARQ I, with and without Packet Combining (PC), and Hybrid ARQ II with Code Combining (CC). The analysis is valid for any number of relays for both Amplify and Forward (AF) and Decode and Forward (DF) relaying strategies and Nakagami-m fading channels. The results indicate a significant improvement of packet delivery delays when compared to the absence of cooperation. Besides, we show that the effects of the noisy feedback can be reduced by coding the ACK message.
引用
收藏
页码：1179 / 1183
页数：5
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