Analysis of Sleep Window of IEEE802.16m Network Based on State Transition Chain

Mohammad Asif Hossain¹, Mohammad Imdadul Islam², Mohamed Ruhul Amin¹

¹Department of Electronics and Communication Engineering, East West University, Dhaka, Bangladesh.
²Department of Computer Science and Engineering, Jahangirnagar University, Savar, Bangladesh.

DOI: 10.4236/jcc.2015.312007                

Abstract

Energy efficiency plays vital roles in wireless communication system due to the “energy limited battery service” of a mobile station (MS). To ensure longer battery life in WiMAX, a new protocol has been introduced in its IEEE802.16m version. This new sleep mode has extended listening window and adjustable sleep cycle length. In this paper, we analyze the probability of attaining at three states: serving state, state of timer inactivity and silent state in a simplified statistical model using traffic parameters of arrival rate, pdf (probability density function) of interarrival time and its threshold value. Finally we developed a new state transition chain of the above three states of a MS of IEEE802.16m and solved the chain in closed form.

Keywords

Sleep Mode, Energy Saving, Packet Arrival Rate, Interarrival Time and State Transition Chain

Conflicts of Interest

The authors declare no conflicts of interest.

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