SHRP: A New Routing Protocol to Wireless Sensor Networks

This paper presents a new routing protocol to Wireless Sensor Networks called SHRP. This protocol has as principal goal the saving of energy and also provides reliability of data delivery. It is a novel proposal as it acts as a proactive protocol in respect to the choosing of routes, taking in consideration just nodes that can contribute to extend the network lifetime, that means, good battery status and good link quality. It also contributes to network management advising a central point about a possible disconnection of a node caused by low battery or large interference periods. Data messages can be added during the forwarding task and redundant sensing data are not sent, so it contributes again with the energy saving. We show that SHRP has a low time of convergence, which means that reacts quickly in case of topology changes, which is common in Wireless Sensor Networks, as the battery lifetime is low and the environment of wireless network uses to suffer from interferences and obstacles.