Hybrid Routing Protocol for Underwater Sensor Networks
Considering the different routing requirements of static nodes and mobile nodes in underwater acoustic sensor networks,the paper analyzed the characteristics of deterministic routing and opportunistic routing protocol,and proposed a hybrid routing protocol for underwater sensor networks(HRP-USN),which divided the underwater sensor networks into static nodes and mobile nodes for design.The routing protocol of static nodes combined the advantages of static routing and dynamic routing,configured the routing table manual-ly in the routing establishment,and used the MAC layer feedback and route-focusing forwarding control to maintain and reestablish the route,taking into account the self-organization and complexity of protocol.The mobile nodes adopted opportunistic routing,sent data to the static nodes in a single-hop way,then adaptively determine the optimal relay nodes to transmit to the gateway nodes according to the existing routing,using the broadcast characteristics of the underwater acoustic channel to improve the packet delivery rate under weak communication conditions.The simulation results show that under different node movement speeds and bit error rates,the packet deliv-ery rate of HRP-USN is significantly better than other traditional routing protocols.HRP-USN is more suitable for underwater sensor networks.
万方数据
维普
