Practical Link Reliability for Ad Hoc Routing Protocol

Due to the unreliability characteristics of wireless communications, and nodes mobility, mobile ad hoc networks demand robust protocol design. Hence, routing protocol choosing the most reliable route between two terminals have been proposed in order to minimize the path failure occurrence. The interest of this approach has been shown, in research literature, mainly by simulation in terms of delay or packet delivery ratio. Meanwhile, there is a problem to put in practice the route reliability paradigm. The route reliability depends on links reliability. The motivation of this paper is to determine a measure of the link reliability. In this paper, we study the link reliability formulation in order to propose a realistic wireless link parameters modeling. The modeling takes into account the mobility, the transmission quality, and the communication load. Reliability can be computed without extra signaling by each node.