Evaluating the Effect of non-Poisson Traffic Patterns on Power Consumption of Sleep Mode in the IEEE 802.16e MAC

In this paper, we study the effect of non-Poisson traffic patterns on energy consumption for IEEE 802.16e nodes while operating in the sleep mode. In the sleep mode, a mobile subscribe station (MSS) sleeps for a sleep interval and wakes up at the end of this interval in order to check buffered packet(s) at base station (BS) destined to it. If there is no packet, the MSS increases the sleep window up to the maximum value and sleeps again. For a more general traffic pattern (rather than Poisson), we evaluate the average power consumption. Based on our analysis, we conclude that traffic pattern plays an important role in power consumption.