Abstract
Symmetrical applications are multimedia applications that require both uplink and downlink connectivity. The demands of symmetrical applications are expected to grow rapidly in the future but there is still no resource management that can efficiently support symmetrical applications over heterogeneous services in IEEE 802.16 system. In this paper, we propose a resource management scheme that can support symmetrical applications along with heterogeneous services. The proposed scheme comprises of a joint uplink and downlink allocation, dynamic control system and bandwidth recycling framework. Simulation studies show that the proposed scheme outperforms asymmetrical scheme in terms of throughput, delay and packet loss. The proposed scheme also achieves similar performance gains in more complex environment.
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