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Cooperative Communication Techniques for Wireless OFDMA-Based Ad-Hoc Networks

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3 Author(s)
Sergi, S. ; Dept. of Inf. Engeneering, Univ. of Modena e Reggio Emilia, Reggio Emilia, Italy ; Pancaldi, F. ; Vitetta, G.M.

This paper proposes a new architecture for cooperative communication in wireless ad-hoc networks particularly suitable to emergency and safety applications. The proposed solution is characterized by the following relevant features: (a) a wireless connection between each couple of network nodes is established via multiple relays; (b) each source-to-destination link is characterized by a double string topology allowing the use of specific transmit diversity techniques for reliable communications; (c) a novel utility-based and distributed routing algorithm providing a fair exploitation of the available resources is employed. Simulation results evidence that our solution offers substantial energy savings with respect to traditional ad-hoc architectures.

Published in:

Communications, 2009. ICC '09. IEEE International Conference on

Date of Conference:

14-18 June 2009