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Performance Evaluation of a Secure Ad-hoc Network Management Method

Sapna Bagde, Deshraj Ahirwar, Kamini Maheshwar

Abstract


An ad-hoc network is a multi-hop wireless network where all nodes cooperatively maintain network connectivity without a centralized infrastructure. If these nodes change their positions dynamically, it is called a mobile ad-hoc network (MANET). Since the network topology changes frequently, efficient adaptive routing protocols such as AODV, DSR are used. As the network is wireless, security becomes the major issue in Mobile Ad hoc Networks. Prior research in MANET has mainly focused on the routing functions in a uniformly and trustful environment. For instance, it is assumed that all the nodes in a specific area implement one particular routing protocol and have the accessible IP addresses uniformly. In this paper, we present a group separating scheme based on group identifier, and describe the design and performance evaluation of a secure MANET management method, called Wireless overlay Network (WoN). Wireless overlay Network realizes secure group communication by encrypting messages based on MANET-IDs, and allows multiple MANET routing protocols to coexistent in the same area, by conducting MID-based routing separation. Simulation results for several scenarios of node mobility and traffic flows have revealed that adding WoN to prior proposed routing protocols (DSR and AODV) produces little overhead of routing control packets and has the good scaling behavior. In addition, we have shown that MANET-ID based routing protocols maintain the independence behavior to other routing protocols.

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