An Energy-Efficient Dynamic Duty-Cycle and Dynamic Schedule Assignment Scheme for WSNs

Abstract

Wireless Sensor Network (WSN) is still a hottest research topic which can be applied to a lot of new research field such as robotic and smart grid. Its not only used for detecting the new environment but also monitoring any situation which has dynamic variation. However, the sensor node is relied on the battery energy that limited the lifetime of entire network. In this paper, we proposed a novel scheme called Dynamic Duty cycle and Dynamic Schedule Assignment (DDDSA) which not only can reduce number of RTS/CTS (Request to Send / Clear to Send) packets but also dynamically update the Duty Cycle value. Furthermore, the proposed scheme does not calculate the traffic information repeatedly in overlapping areas. This scheme will reduce more idle nodes to achieve energy efficiency.