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Optimal Cooperative MAC Protocol with Efficient Selection of Relay Terminals

Escrig, Benoît Optimal Cooperative MAC Protocol with Efficient Selection of Relay Terminals. (2010) In: Mesh Tech 2010, 8 November 2010 (San Francisco, United States).

(Document in English)

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Official URL: http://dx.doi.org/10.1109/MASS.2010.5663888


A new cooperative protocol is proposed in the context of wireless mesh networks. The protocol implements ondemand cooperation, i.e. cooperation between a source terminal and a destination terminal is activated only when needed. In that case, only the best relay among a set of available terminals is re-transmitting the source message to the destination terminal. This typical approach is improved using three additional features. First, a splitting algorithm is implemented to select the best relay. This ensures a fast selection process. Moreover, the duration of the selection process is now completely characterized. Second, only terminals that improve the outage probability of the direct link are allowed to participate to the relay selection. By this means, inefficient cooperation is now avoided. Finally, the destination terminal discards the source message when it fails to decode it. This saves processing time since the destination terminal does not need to combine the replicas of the source message: the one from the source terminal and the one from the best relay. We prove that the proposed protocol achieves an optimal performance in terms of Diversity-Multiplexing Tradeoff (DMT).

Item Type:Conference or Workshop Item (Paper)
Additional Information:This paper appears in: Mobile Adhoc and Sensor Systems (MASS), 2010 IEEE 7th International Conference on. ISSN 2155-6806. Thanks to Institute of Electrical and Electronics Engineers (IEEE) editor. (c) 2010 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works. The original PDF of the article can be found at IEEE Xplore Digital Library website : http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5663888&tag=1
HAL Id:hal-04026837
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
Laboratory name:
IEEE Computer Society
Deposited On:26 Jan 2011 15:42

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