Exploiting routing redundancy using MAC layer anycast to improve delay in WSN

Abstract

Source-destination pairs in wireless sensor networks often have multiple shortest hop paths because the nodes are densely deployed. These multiple paths provide a great opportunity to reduce delay in an asynchronous duty-cycled network. In this paper, we exploit the redundancy available at the route layer using MAC-layer anycasting. We choose the next hop node that wakes up the soonest and thus reduce the delay incurred at each hop.