Effective Bandwidth-Based QoS Provisioning for Real-Time Time Audio/Video Streaming over MIMO-OFDM Wireless Networks
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abstract
We propose a cross-layer design scheme to support the real-time quality of service (QoS) guarantees for hetero-geneous mobile users over downlink MIMO-OFDM wireless networks. Inspired by the effective bandwidth theory originally established for wired networks, we develop the approach to apply the theory into wireless networks. Based on MIMO-OFDM infrastructure employed at the physical (PHY)-layer, we analytically derive the medium access control (MAC)-layer admissioncontrol and time-slot allocation algorithms to guarantee the statistical delay-bound for different real-time users. Simulation results show that the proposed scheme can efficiently support the wireless QoS requirement for diverse real-time mobile users.
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19th IEEE International Parallel and Distributed Processing Symposium