Abstract:

Aiming at the defects of time delay and data packet loss in ZigBee network link repair mechanism, an improved local repair algorithm (ILRAAODVjr) for Zigbee networks was proposed in this paper. Based on the reverse routing mechanism of leisure routing nodes, a twohop reverse routing SRREQ packet was broadcast to the neighbor nodes, which generated a plurality of alternate local routing for the leisure node, increased the number of effective routes in the network, improved the speed of network discovery, and shortened the local fault recovery time. The simulation results show that the improved local repair algorithm for Zigbee network can effectively reduce the response time of network fault repair, prolong the network life cycle, and reduce the network congestion and delay.

Key words: Zigbee network, repair mechanism, ILRA-AODVjr