A Robust Routing Strategy for Wireless Sensor Networks

This paper investigates a routing mechanism that generates routing paths dynamically for a network of wireless sensor nodes. The strategy Is based on the logical network abridgement (LNA) scheme designed for the adhoc networks in the literature. Sensor networks are distinguished from the traditional networks by characteristics such as deeply embedded routers, highly dynamic networks, resource constrained nodes, frequent topology change and unreliable and asymmetric links. Although there are some previous methods for adaptive routing in these networks, but not much work has been done so far in this direction. In this paper, we propose a simple, efficient and distributed routing scheme based on the logical network abridgement (LNA), which is used to measure the underlying path diversity and intrinsic network resiliency to congestion, failures and attacks. It works well in dynamic and realistic environment. Simulation results are given, which show that the strategy based LNA helps achieve the desired system performance under the dynamically changing network conditions.