Cross‐layer design for double‐string cooperative communications in wireless ad‐hoc networks
Simone Sergi, Fabrizio Pancaldi, Giorgio Matteo Vitetta · European Transactions on Telecommunications · 2011
ABSTRACT This paper proposes a novel architecture for cooperative communication in wireless ad‐hoc networks capable of offering reliable and low‐latency services efficiently. The proposed solution is characterised by the following relevant features: (i) a wireless connection between each couple of network nodes is established via multiple relays; (ii) each source‐to‐destination link is characterised by a double‐string topology, allowing the use of specific transmit diversity techniques for reliable communications; and (iii) a novel utility‐based routing metric providing a fair exploitation of the available energy/bandwidth resources is employed. Simulation results evidence that our solution offers substantial energy savings with respect to traditional ad‐hoc architectures employing multihop routing and operating in the absence of cooperative strategies. Copyright © 2011 John Wiley & Sons, Ltd.