Abstract: For the reduirements of wireless mesh sensor network, a comprehensive measure of cross-layer routing proto- col HLS was proposed. HLS algorithm uses the link quality information at the bottom, distribution information of MAC layer and combines with hop counts to make comprehensive judgment for the alternative route to avoid lower quality link and heavy load nodes. In the pros(ss of route founding,link quality and node load thresholds arc set in the middle nodes and the delay forwarding operations are taken according to relevant information to reduce unnecessary routing o- verhcad. In the routing maintenance phase, passive and active methods arc used to detect the routing path comprchensivly. Simulation results of NS2 show that HLS has better performance in throughput capacity, end-to-end delay and network life time.

Key words: Wireless mesh sensor network, Load balancing, Combined routing metric, Cross-layer design