Impact of mobility on the performance of relaying in ad hoc networks.pdf

Impact of Mobility on the Performance of Relaying in Ad Hoc Networks A. Al-Hanbali , A. A. Kherani , R. Groenevelt , P. Nain and E. Altman INRIA, 2004 Route des Lucioles, B.P.-93, Sophia-Antipolis Cedex, France, 06902. ´ Universite de Nice-Sophia Antipolis. Department of Computer Science, France. Abstract — We consider a mobile ad hoc network consisting keep the data to be relayed in its buffer. Hence, the study of of three types of nodes: source, destination, and relay nodes. the buffer behavior of a relay node forms an important topic All the nodes are moving over a bounded region with possibly of research. The present work addresses the above two issues, different mobility patterns. We introduce and study the notion of relay throughput , i.e. the maximum rate at which a node i.e., the maximum relay throughput and the relay node buffer can relay data from the source to the destination. Our findings behavior. include the results that the relay throughput depends on the Our point of departure is a simple observation which relates node mobility pattern only via its (stationary) node position the evolution of a relay node buffer to the evolution of the distribution and that a node mobility pattern that results workload process in a G/G/1 queueing system. The service in a uniform steady-state distribution for all nodes achieves requirements and inter-arrival times in this queueing system the lowest relay thro