Diversity-Multiplexing-Delay Tradeoff in Half-Duplex ARQ Relay Channels

Tabet, Tarik; Dusad, S.; Knopp, Raymond

doi:10.1109/tit.2007.905001

Cited by 50 publications

(45 citation statements)

References 18 publications

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“…The combination of cooperative communications and HARQ has been investigated in [58]- [61]. In [58], the diversity-multiplexing-delay tradeoff was analyzed and two kinds of diversity including space and ARQ diversity were exploited. Lin Dai studied the application of adaptive cooperation with ARQ in [59], where the relay will not be involved in the cooperation if errors are detected.…”

Section: H-arq Relaying and H 2 -Arq Relayingmentioning

confidence: 99%

Cross-Layer Design and Optimization for Green Wireless Communications and Networking

Zhu¹,

Xiao²,

Zhou³

2016

Green Communications and Networking

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Section: H-arq Relaying and H 2 -Arq Relayingmentioning

confidence: 99%

Cross-Layer Design and Optimization for Green Wireless Communications and Networking

Zhu¹,

Xiao²,

Zhou³

2016

Green Communications and Networking

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“…The channel noise is considered to be AWGN with variance N 0 /2 per dimension. A long-term quasi-static Rayleigh fading channel [23] is considered, which means that channel coefficients are constant during the retransmissions, changing only for a new block of data. We assume perfect CSI at the receivers.…”

Section: Outage Analysismentioning

confidence: 99%

Cooperative partial retransmission scheme in incremental decode-and-forward relaying

Brante

Souza

Pellenz

2011

J Wireless Com Network

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In this paper, we present a novel hybrid automatic repeat request (HARQ) scheme for cooperative communication systems, called cooperative partial retransmission (CPR). The method is based on the retransmission of only a fraction of the original code word by the cooperating nodes. Based on the outage analysis, we derive the theoretical throughput expressions that are compared to numerical simulations using LDPC codes, showing that CPR outperforms regular cooperative HARQ techniques. Additionally, we show that the CPR throughput, even using a single relay, may be considerably larger than the throughput of a regular cooperative HARQ scheme using multiple relays. Finally, the energy consumption analysis of the schemes shows that CPR consumes less energy than regular cooperative HARQ, mainly due to the shorter retransmissions.

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“…Because H-ARQ is known to improve DMT performance, MHRS protocol is also expected to achieve improved DMT performance if H-ARQ is combined. Furthermore, to the best of authors' knowledge, previous works on H-ARQ for multiple half duplex relays [10], [12] did not consider no direct link case.…”

Section: Introductionmentioning

confidence: 99%

New two-hop multiple relay protocol with H-ARQ in the absence of a direct link

Hong

Choi

2013

2013 IEEE Global Communications Conference (GLOBECOM)

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In this paper, we devise and comprehensively analyze an efficient transmission protocol for multiple half-duplex relay communication without a direct link but with inter-relay interference. The proposed protocol achieves high diversity gain with the help of Hybrid Automatic Retransmission reQuest (H-ARQ) even when multiplexing gain is quite high. As the maximum allowable number of retransmission rounds (L) increases, an additional time diversity gain is obtained in short-term static channels. Compared to pre-existing protocols which adopt H-ARQ in a similar manner, its diversity gain at high multiplexing gain is much improved. As L increases, the dominating region become wider. In addition, in long-term static channels, we show that more than two retransmissions (i.e., L > 2) are unnecessary for improvement of the diversity gain.

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Diversity-Multiplexing-Delay Tradeoff in Half-Duplex ARQ Relay Channels

Cited by 50 publications

References 18 publications

Cross-Layer Design and Optimization for Green Wireless Communications and Networking

Cross-Layer Design and Optimization for Green Wireless Communications and Networking

Cooperative partial retransmission scheme in incremental decode-and-forward relaying

New two-hop multiple relay protocol with H-ARQ in the absence of a direct link

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