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Conference Paper A New Efficient BS Scheduler and Scheduling Algorithm in WiBro Systems
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Authors
Ju Hee Kim, Eun Kyung Kim, Kyung Soo Kim
Issue Date
2006-02
Citation
International Conference on Advanced Communication Technology (ICACT) 2006, pp.1467-1470
Language
English
Type
Conference Paper
Abstract
In this paper, we propose an efficient structure of base station (BS) scheduler for the Wireless Broadband (WiBro) system. The BS scheduler consists of an uplink scheduling block, a downlink scheduling block and a channel quality information block. Both uplink and downlink scheduling blocks operate closely with a channel quality information block to schedule downlink packets and allocate uplink/downlink radio resources. Next, we propose a new efficient scheduling algorithm for WiBr0 systems. The proposed algorithm utilizes the user-based scheduling to relieve the MAP overhead problem and to modify the normal proportional fair (PF) scheduling algorithm to guarantee user-based quality of service (QoS). The simulation study shows that the proposed algorithm relieves the MAP overhead problem by allocating the minimum number of user bursts in a frame and supports better fairness performance, while supporting the system throughput performance similar to that of the normal PF scheduling algorithm.
KSP Keywords
Channel Quality Information, Downlink scheduling, Proportional fair (PF) scheduling, Scheduling algorithm, Simulation study, Throughput performance, Uplink Scheduling, User based, Wireless Broadband, base station(BS), quality of service(QoS)