Improving energy efficient using novel sleep scheduling approach for wireless ad-hoc network

摘要

Wireless Adhoc networks are deployed in emergency situations, military kind of applications, surveillance monitoring and in healthcare industry. The Nodes are dynamic and can accommodate themselves in any existing infrastructures, placed randomly in the network. Every node can easily communicate with any other node through the base station directly. Since entire node communicates simultaneously there are chances for collision or jamming can occur in the network. Various approaches are available in the existing literatures which are concentrating only in avoiding collision or jamming. In this paper, [Novel Sleep Scheduling] NSS approach is introduced to save the energy efficiently. NSS follows an ESR-MAC protocol which is derived from TDMA and CSMA based slot allocation. ESR utilizes the slot allocation method from CSMA and utilizes scheduling methodology from TDMA. NSS improves the energy efficiency by changing the states of the node with level by level offset way and collision and Jamming is avoided by scheduling method. The simulation result shows the best performance of Novel Sleep Scheduling approach is better than the existing approach in terms of throughput, delay and energy.