Only the short die old: route optimization in MANETs by dynamic subconnection shrinking

In reactive routing protocols, active routes for multihop connections retain their topological structure in spite of node movement over time. Unfortunately, node movements may make the connection route sub-optimal in terms of hop length, thereby resulting in unnecessarily high end-to-end delays, energy consumption and channel contention. In AODV, for example, a connection route is recomputed only if one of its constituent links suffers catastrophic failure, at which point global route discovery attempts repair, and after which the topological structure of the connection again returns to nearoptimality. In this paper, we propose an extension to AODV that performs periodic subconnection shrinking of the topological substructure within each connection. We show that this not only reduces the average end-to-end connection length, but also increases the mean time between catastrophic link failures of the connection’s constituent links, thereby reducing the number of repair-related global...

• Type: Conference
• Year: 2010
• Where: IWCMC
• Authors: Zeki Bilgin, Bilal Khan, Ala I. Al-Fuqaha
• Keywords: Connection Route, Global Route Discovery, IWCMC 2010, Repair-related Global Route