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.
Cooperative Communication Techniques for Wireless OFDMA-Based Ad-Hoc Networks / Sergi, Simone; Pancaldi, Fabrizio; Vitetta, Giorgio Matteo. - ELETTRONICO. - (2009), pp. 1-6. (Intervento presentato al convegno International Conference on Communications 2009 (ICC '09) tenutosi a Dresden, deu nel 14 - 18 June 2009) [10.1109/ICC.2009.5198859].
Cooperative Communication Techniques for Wireless OFDMA-Based Ad-Hoc Networks
SERGI, SIMONE;PANCALDI, Fabrizio;VITETTA, Giorgio Matteo
2009
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.Pubblicazioni consigliate
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