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Radio resource joint management scheme for the BBS and CBS mixed mode of BWM systems

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3 Author(s)
Min Wang ; Beijing Key Lab. of Network Syst. Archit. & Convergence, Beijing Univ. of Posts & Telecommun., Beijing, China ; Chunyan Feng ; Tiankui Zhang

To maximize the utilization of system resources and satisfy the requirements for quality of service (QoS), the radio resource joint management (RRJM) scheme is proposed for the broadcast base station (BBS) and cell base station (CBS) mixed mode of broadband wireless multimedia (BWM) system. The RRJM includes multiple utility factors-based packet scheduling (MUFPS) and broadcast cell seamless handover algorithm (BCSHA). The MUFPS takes into account QoS requirements, queue dynamics and channel state information to adapt packet priority with multiple utility factors. The BCSHA adopts seamless switch between BBS with point-to-multipoint (PTM) and CBS with point-to-point (PTP). The switch from BBS PTM to CBS PTP takes into account handover delay for accurate execution. The switch from CBS PTP to BBS PTM avoids ping-pong effect by considering the handover threshold predefined with QoS. Simulation results show that the proposed scheme improves system performance in terms of throughput and delay.

Published in:

Wireless Personal Multimedia Communications (WPMC), 2011 14th International Symposium on

Date of Conference:

3-7 Oct. 2011

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