A Reliable Anycast Protocol Based on Recovery Point in ZigBee Networks

Abstract

ZigBee network supports low data-rates; low power consumption and simple route. Aim at searching service; it usually relies on message broadcasting which tends to result in large traffic overhead. Other major challenge is unstable forwarding path. This work presents an anycast scheme for searching service in ZigBee network. That has the capability to choose the best one of servers in an anycast group as a destination, and reduce the volume of query messages as well as the reply messages. It also reduces the query latency and increases the accuracy of service discovery. In addition to basic anycasting, our scheme also increases the reliability of packet transmission by providing Recovery Point (RP). The RP scheme keeps copies of data packets of the source for recovering lost packets for its downstream node. The experimental results and demonstrate that our scheme is efficient and feasibile for ZigBee network.