A Routing Metric to Improve Route Stability in Mobile Wireless Sensor Networks
Yi‐Han Xu, Yin Feng Wu, Jun Min Song · KSII Transactions on Internet and Information Systems · 2016
The hop count routing metric is widely used in routing protocols of Wireless Sensor Networks (WSNs) due to its simplicity and effectiveness.With a lower hop count route, fewer transmissions are required to send a packet from the source to the destination.This can improve the throughput of a network because fewer transmissions results in less channel contention and interference.Despite this, the hop count routing metric may not be ideal for mobile scenarios where the topology of a network changes constantly and rapidly.In this paper, we propose to increase route stability in mobile WSNs by discovering paths that are more stable during route discoveries using routing metrics.Two routing metrics were proposed, the true beauty of these routing metrics lies in the fact that they can even be used even without specialized hardware such as GPS and other sensors.We implemented the proposed routing metrics in the AODV routing protocol and found that they are highly effective and outperform other stability-based routing metrics and the hop count routing metric.