Date of Publication :30th December 2017

Abstract: Wireless Sensor Network (WSN) contains hundreds or thousands of these sensor nodes. These sensors have the ability to communicate either among each other or directly to an external base-station (BS). A greater number of sensors allows for sensing over larger geographical regions with greater accuracy. Routing is one of the critical issues in WSNs. Researchers proposed routing protocols for single sink WSNs. Most of the WSNs applications have thousands of sensor nodes where single sink WSNs performance is not convincing. In this paper review of routing protocols for multisink WSNs is presented and also need of multisink WSNs are discussed. It highlights critical issues and open challenges posed by the multisink WSNs.

Reference :