A Survey of Low Duty Cycle MAC Protocols in Wireless Sensor Networks
M. Riduan, Eryk Dutkiewicz, Xiaojing Huang · InTech eBooks · 2011
Emerging Communications for Wireless Sensor Networks 70 mechanism is used as a double measure of link reliability.However, we note that all the sensor nodes are always on which makes the issues of idle listening and overhearing still need to be addressed.The CMAC ON protocol should deploy a duty cycle mechanism to reduce further the total energy consumption.Also, circuit energy must be included to get a better picture of the overall energy usage in the network.The comparative study in this chapter provides a basis for further study to design an improved version of the CMAC ON protocol which employs a low duty cycle mechanism in cooperative MIMO communication.The improved MAC will be evaluated with a set of cooperative MIMO systems in terms of energy efficient operation and its trade-off relationship with packet latency.The rest of the chapter is organized as follows.The concept of a low duty cycle is introduced in Section 2 to provide a basis of energy efficient MAC operation.We examine state-of-theart duty cycle MAC protocols in Sections 3 and 4. We classify these protocols into synchronous and asynchronous.In Section 5, we explore existing MAC protocols designed specifically for cooperative Multiple-Input Multiple-Output (MIMO) transmissions.Finally the chapter is concluded in Section 6. How to referenceIn order to correctly reference this scholarly work, feel free to copy and paste the following: M.