Crosslayer Design Protocol Using Geographical Information in Wireless Sensor Networks

摘要

Many routing protocols for wireless sensor networks based on location information have been proposed such as GPSR, LAR, IGF, etc. When these routing protocols are used with existing MAC protocols, however, the sleep and wake-up scheduling of many MAC protocols degrades the routing protocol performance because of the long latency for periodic scheduling and synchronization overhead. In this paper, a cross layered routing and MAC protocol, CBT(Cell Back-off Time) protocol, has been proposed for the enhancement of successful routing in the Wireless Sensor Network environment considering the mobility of sensor nodes. Analysis and Simulation shows that CBT shows good performance when network density is high and nodes have mobility.