Energy Efficient MAC Protocol with Wake up Radio for Wireless Sensor Network

Wireless Sensor Network (WSN) performance is improved with duty cycled Medium Access Control (MAC). However, many MAC variants still suffer from the problems related to idle listening and overhearing. Thus they are short of optimal energy efficiency which is one of the crucial aspect in WSN for increasing lifetime of nodes. It is observed from the literature that Wake-up Radio (WuR) systems can significantly reduce the problems aforementioned. WuRcan be used to optimize performance as it switches off node’s MCU (Micro Controller Unit) and also the main radio transceiver until a low-power receiver is triggered by a specific wireless transmission. Most of the existing WuR studies are either theoretical in nature or depended on custom-built simulators. In this paper we proposed a framework based on WuR for better performance and reduce energy consumption. It throws light into energy and delay tradeoffs and the empirical results with NS2 simulations revealed the utility of the proposed framework.