Abstract
For mobile multi-hop wireless network, IEEE 802.16j/MR network can not only supply large area wireless deployment, but also provide high quality network service to mobile users. In this paper, we will be focusing on QoS supporting for mobile users in the IEEE 802.16-MR network. The probability of a mobile user who visits a RS is known beforehand. With the same visiting probability of each RS and the system-specified size of the range for bandwidth allocation, BS can calculate the required bandwidth to meet the mobile user's demand and allocate appropriate bandwidth for a mobile user includes the user's current relay station and the nearby relay stations. The range of bandwidth allocation for mobile users is called the Zone in this paper; and the proposed scheme is therefore a Zone-based bandwidth allocation protocol. The simulation results demonstrate that Zone-based bandwidth allocation protocol can reduce QoS degradation and bandwidth re-allocation overhead.
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