Link Stability in MANETs Routing Protocols
Crescenzio Gallo, Michele Perilli, Michelangelo De Bonis · 2010
Mobile ad hoc networks (MANETs) is a promising communication paradigm for the emerging collaborative envi- ronments, which do not need an underlying stable, centralized routing and management infrastructure. In this paper we propose a particular approach for the design of a mobile routing protocol focused on the stability (measured as the transmission intensity change rate) of network links instead of speed and path length, and simulate its adoption in a random network analyzing the corresponding communication graphs. Keywords-MANET, routing protocol, link stability. I. INTRODUCTION Starting from the routing protocols developed in the seventies, valuable work has recently been done in the field of routing protocols for mobile ad hoc networks (consisting of interconnected mobile hosts with routing capabilities), especially since the advent of wireless networks based on UMTS/LTE and WiFi/WiMAX protocols (5) where it is possible to deal with a variable-speed link going from 1 to about 300 Mbps up to 120 Km/h. Because mobile networks can have very unstable links, stability of routes (instead of the only link speed/intensity and path length) becomes a main target in the development of a mobile routing protocol. In the following section the state-of-the-art is examined, pointing out the fundamental routing protocol issues. Next, Section III introduces the link stability concept in high mobility networks. In Section IV we present the best-path analysis related to link stability, then stating our proposal of an algorithm for route discovery in Section V. A practical network simulation is illustrated in Section VI together with some relevant parameters. Finally, Section VII summarizes and provides some directions for future work in this area.