A reliability-based framework for multi-path routing analysis in mobile ad-hoc networks. (6th November 2008)

• Record Type: Journal Article
• Authors: Caleffi, Marcello; Ferraiuolo, Giancarlo; Paura, Luigi
• Is Part Of: International journal of communication networks and distributed systems. Volume 1:Number 4/5/6(2008)
• Page Start: 507
• Page End: 523
• Publication Date: 2008-11-06
• Subjects: mobile networks -- ad hoc networks -- MANET -- reliability -- multi-path routing -- graph theory -- overlay graphs -- terminal-pair routing; Computer networks -- Periodicals; Telecommunication systems -- Periodicals; Electronic data processing -- Distributed processing -- Periodicals; 004.6
• Languages: English
• ISSNs: 1754-3916

Abstract

Unlike traditional routing procedures that, at the best, single out a unique route, multi-path routing protocols discover proactively several alternative routes. It has been recognised that multi-path routing can be more efficient than traditional one mainly for mobile ad hoc networks, where route failure events are frequent. Most studies in the area of multi-path routing focus on heuristic methods, and the performances of these strategies are commonly evaluated by numerical simulations. The need of a theoretical analysis motivates such a paper, which proposes to resort to the terminal-pair routing reliability as performance metric. This metric allows one to assess the performance improvement gained by the availability of route diversity. More specifically, resorting to graph theory, we propose an analytical framework to multi-path route discovery processes against route failures for mobile ad hoc networks. Moreover, we derive a useful bound to easily estimate the performance improvements achieved by multi-path routing with respect to any traditional routing protocol. Finally, numerical simulation results show the effectiveness of this performance analysis.