Cooperative communication techniques for wireless OFDMA-based ad-hoc networks

Authors:
Simone Sergi;Fabrizio Pancaldi;Giorgio Matteo Vitetta
Affiliations:
University of Modena e Reggio Emilia, Department of Information Engeneering;University of Modena e Reggio Emilia, Department of Science and Methods for Engeneering;University of Modena e Reggio Emilia, Department of Information Engeneering
Venue:
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Year:
2009

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Abstract

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.