Dynamic Node-Relocation Techniques for Wireless Sensor Networks: A Survey
Muhammad Amir Khan, Halabi Hasbullah, Babar Nazir · 2014
In determining the application efficiency the capability of inter-node connectivity among nodes is essential. Some nodes are also involved to uphold the flow of information from the sensor to remote users. A node loss can be encountered due to deployment ruthless and unattended areas. The network may get partition into multiple disjoint blocks and stop functioning because of depletion of onboard energy or due to physical damage. In this paper, the current and up to date state of research on the dynamic node relocation in Wireless Sensor Networks is presented. This work categorizes the node relocation techniques in to post-deployment and on-demand relocation depending whether the optimization is performed at the time of deployment or when the network is operational. This paper also identifies the open problems and future directions in this area of research.