Abstract
In IEEE 802.16e, with the popularization of multimedia services, multicast and unicast services are coexisted in one mobile subscriber stations (MSS). The mobile devices generally powered by energy-limited battery. Thus, the power saving is the important issue of extending the lifetime of MSSs. In this paper we have proposed a Multicast Services Based Scheduling (MSBS) algorithm that improves energy efficiency for both unicast and multicast services, and conforms QoS requirements of MSSs in 802.16e wireless networks. MSBS controls packets based on a deadline for each packet determined from QoS parameters and reduces energy consumption of MSSs by minimizing the energy for switching. Simulation results show that, MSBS can produce significant overall energy saving and prolonged lifetime of the MSSs.
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