Micro Sensor Multi-Path Routing Protocol in Wireless Sensor Networks

In wireless sensor networks (WSNs), some unavailable areas often formes because some sensor nodes become unavailable due to energy exhausted, congestion, or disaster. In this paper, we propose a new micro sensor multi-path routing protocol (MSMRP) to cross around the unavailable areas when building up the routes. And we design a neighbor node table exchanging mechanism that can avoid the multiple paths intersect when build a new route around the unavailable areas. Finally, we implement the proposed protocol in the real sensor nodes and set up a testbed to conduct experiments. The experimental results show that MSMRP can perform well to build up multiple paths to cross around the unavailable areas.