A cross-layer AODV routing protocol

Reactive routing protocols are suitable for wireless mobile ad-hoe networks (WMANETs). Because wireless sensor networks (WSNs) are similar to WMANETs in structure, reactive routing protocols can be used in WSNs. In this article, we presented CLAODV (Cross-Layer Ad-hoc On-demand Distance Vector), a reactive routing protocol suitable for WSNs. CLAODV is an efficient routing protocol crossing routing sublayer and MAC sub-layer. It is based on classic AODV routing protocol and utilizes useful information of MAC sub-layer in routing. At the same time, it improves the sending, receiving and processing mechanism of the timed HELLO messages. From theoretical analysis and simulation experiments, we have found that CLAODV have many advantages. Compared to the classic AODV, CLAODV not only can afford more prompt and accurate local topology information to nodes, but also can remarkably decrease protocol overhead and improve protocol efficiency.