Reputation-based routing in hybrid Ad Hoc networks

Abstract

Within Ad hoc networks, IP connectivity is achieved with the help of multi-hop routing; nodes are supposed to cooperate and act as routers for the benefit of the others. However, this cooperation-based paradigm has limitations, because nodes do not always make their resources available, properly. We propose a reputation-based routing protocol, called MOOR, for application to hybrid Ad hoc networks. MOOR aims at improving the reliability of communications between Ad hoc nodes and the gateway to an infrastructurebased network. We present an application-motivated performance analysis of our protocol MOOR, which allows to quantify the benefit in terms of radio network coverage increase. The impact of non-cooperative nodes on a MOOR protected network remains rather low, even for nodes located 5 hops away from the gateway. © Springer-Verlag Berlin Heidelberg 2007.