DISPOSER: distributed secure position service in mobile ad hoc networks
Xiaoxin Wu · Wireless Communications and Mobile Computing · 2006
Abstract Position service is essential for position‐based ad hoc routing algorithms, which have proved to have decent network performance. As private information, node positions are valuable for attackers to locate their targets. Therefore, a secure position service system is needed. In this paper, a distributed secure position service system, named DISPOSER, is proposed and evaluated. A number of trusted servers are distributed in the network. Each node has a virtual home region (VHR). Servers residing in a node's VHR handle the position service regarding to the node, such as position update and position retrieving. DISPOSER keeps the position information private and prevents the position from being misused by a compromised user for tracing purposes. A region‐based local broadcast approach has been designed to reduce the control overhead for information distribution within a VHR. Mechanisms for improving system robustness have been proposed. Analytical results show that while DISPOSER meets the security requirements, it achieves a high system robustness at a relatively low control overhead. Copyright © 2006 John Wiley & Sons, Ltd.