Analysis of Non-Cooperative and Cooperative Type II Hybrid ARQ Protocols with AMC over Correlated Fading Channels

Abstract

This paper presents performance analysis and cross-layer design approaches for hybrid ARQ (HARQ) protocols in wireless networks, which employ adaptive modulation and coding (AMC) in conjunction with adaptive cooperative diversity and are subject to time-correlated fading channels. We first consider a point-to-point scenario, i.e., non-cooperative HARQ with AMC. Utilizing a Markov channel model which accounts for the temporal correlation in the successive transmission of incremental redundancy by the HARQ protocol, we derive the system throughput and the packet loss probability based on a rate compatible punctured convolutional code family. Next, we consider a cooperative HARQ (CHARQ) scheme in which a relay node, also equipped with AMC, retransmits redundancy packets when it is able to decode the source information packet correctly. For this scenario, we also derive the throughput and packet loss performance. Finally, we present a cross-layer AMC design approach which takes into account the hybrid ARQ protocol at the link layer. The results illustrate that including AMC in the HARQ protocols leads to a substantial throughput gain. While the performance of the AMC with HARQ protocol is strongly affected by the channel correlation, the CHARQ protocol provides noticeable performance gains over correlated fading channels as well

Channel Coding versus Cooperative ARQ: Reducing Outage Probability in Ultra-Low Latency Wireless Communications

“…In recent years, a considerable amount of publications has shown both analytically and experimentally the reliability gain of cooperative ARQ compared to traditional ARQ in different system settings, e. g., [10]- [12].…”

“…These results indicate that a system design should favor cooperative over non-cooperative ARQ to increase the reliability, especially when bound to a short transmission latency. Furthermore, the authors of [12] analytically compare non-cooperative and cooperative ARQ to an adaptive coding scheme, under the assumption of strong channel correlation. Their results show that cooperative ARQ mitigates the negative effects of correlation and outperforms the other two variants, which confirms our performance results.…”

Hybrid Automatic-Repeat-reQuest Systems for Cooperative Wireless Communications

“…2011 Harsini et al [145] Presented performance analysis and cross-layer design approaches for H-ARQ protocols, employing adaptive modulation and coding and adaptive cooperative diversity.…”

A Novel AMC Algorithm Based on Improved Channel Estimation for SC-FDE Systems

“…Due to hardware constraints, lack of good channel estimation techniques, and systems focusing on point-to-point radio links without transmitter feedback. As technology evolved these issues became less constraining, resulting in a revived interest in adaptive transmission techniques for 3rd generation and beyond wireless systems [5,6,7,8,9,10]. A variable-rate and variable-power MQAM modulation technique which adapts to the channel variation is proposed [5].…”