A domain-based multi-cluster SIP solution for mobile Ad Hoc network

Abstract

Mobile Ad Hoc Networks (MANETs) are an active and challenging area in computer network research. One emerging research trend is the attempts in implementing or adapting existing voice protocols over MANETs. Successful implementation of voice over MANETs would allow an autonomous way to communicate. Session Initiation Protocol (SIP) is one of the most widely-used signaling protocols used in VoIP services. In order to implement a voice protocol over MANETs, SIP is generally required to be adapted for use over the decentralized environment instead of the overlay infrastructure-based networks. This paper proposes a Domain-Based Multi-cluster SIP solution for MANET. Our proposed solution eliminates the shortcomings of centralized approaches such as single point of failure and provides a scalable and reliable implementation. In addition, it reduces the overhead in existing fully distributed approaches. We then simulate and evaluate the proposed solution under different conditions and using metrics such as Trust Level, Proxy Server (PS) Load, Network Delay, Success Rate, and Network Management Packet.