The impact of cooperation on diversity-exploiting protocols

Zimmermann, Ernesto; Herhold, P.; Fettweis, Gerhard

doi:10.1109/vetecs.2004.1387985

Cited by 45 publications

(35 citation statements)

References 5 publications

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“…C-ARQ schemes have been so far analyzed from a fundamental point of view and mainly with emphasis on the PHY layer (Dianati et al 2006;Zimmermann et al, 2004;Zimmermann et al, 2005;Gupta et al, 2004;Cerruti et al, 2008;Morillo-Pozo et al, 2005). These previous works put in evidence that C-ARQ schemes can yield an improvement in performance, lower energy consumption, and interference, as well as an extended coverage area by allowing communication at low Signal to Noise Ratios (SNRs).…”

Section: Motivation and Contributions Of The Chaptermentioning

confidence: 99%

Cooperative ARQ: A Medium Access Control (MAC) Layer Perspective

Alonso-Zárate¹,

Kartsakli²,

Alonso³

et al. 2010

Radio Communications

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Section: Motivation and Contributions Of The Chaptermentioning

confidence: 99%

Cooperative ARQ: A Medium Access Control (MAC) Layer Perspective

Alonso-Zárate¹,

Kartsakli²,

Alonso³

et al. 2010

Radio Communications

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“…They propose a simple set of retransmissions rules and their aim is to reduce the signalling and control overhead in the network, the hardware and algorithm complexity. In [8] three ARQ protocols are presented. In the first protocol the relay node always retransmits the packet.…”

Section: State-of-the-artmentioning

confidence: 99%

Testing Cooperative Communication Schemes in a Virtual Distributed Testbed of Wireless Networks

Kormentzas

Alonso

Verikoukis

2009

Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering

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It is expected that Next Generation Networks (NGNs) will offer seamless interoperability among heterogeneous access technologies in order to provide ubiquitous access. In such settings, short range technologies may be used in order to extend the coverage area of cellular systems while cooperative diversity can improve the efficiency of the wireless systems. An advanced, backward compatible, with the 802.11 standard, MAC protocol for cooperative ARQ scenarios in NGNs sets the research framework for this work. The functionalities of the RCSMA protocol [1] will be enhanced and the derived analytical models will be validated at the UNITE Virtual Distributed Testbed (VDT) ([2]).

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“…However, it suffers from temporal diversity limitations especially in slow fading environments. In [3], the authors have proposed cooperative relaying transmission as a solution for mitigating these diversity limitations. This cooperative diversity version exploits the broadcast nature of the wireless channel and adds spatial diversity by incorporating relays in the network.…”

Section: Introductionmentioning

confidence: 99%

Analysis of packet combining for single carrier multi-relay broadband system

Chafnaji

Ait-Idir

Yanıkömeroğlu

et al. 2010

2010 IEEE 11th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)

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Abstract-This paper focuses on packet combining for multi-relay systems operating over multiple-input-multiple-output (MIMO) broadband channel. The work presented in this paper is valid for both amplify-andforward (AF) and decode-and-forward (DF) relaying schemes. First, we drive a communication model in such a way that the destination can see the received signals during the relaying slots as direct retransmissions from the source. We then present a multi-slot communication model where transmission over relaying slots is translated into virtual receive antennas and examine the outage probability of different relaying schemes. Using simulations, we show that this schemes outperform each other depending on the relays location and demonstrate that the multirelay transmissions provide better diversity gain than the conventional hybrid-Automatic repeat request (ARQ).

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The impact of cooperation on diversity-exploiting protocols

Cited by 45 publications

References 5 publications

Cooperative ARQ: A Medium Access Control (MAC) Layer Perspective

Cooperative ARQ: A Medium Access Control (MAC) Layer Perspective

Testing Cooperative Communication Schemes in a Virtual Distributed Testbed of Wireless Networks

Analysis of packet combining for single carrier multi-relay broadband system

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