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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)