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학술대회 An Adaptive Determination of Channel Information Feedback Period in OFDMA Systems
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저자
오혜주, 김형명
발행일
200606
출처
International Symposium on Consumer Electronics (ISCE) 2006, pp.239-243
협약과제
06MR3400, 하향 1Gbps 디지털 케이블 송수신 시스템 개발, 이수인
초록
OFDMA is considered as a promising solution for improving the performance of interactive wireless broadcasting systems. This work focuses on packet scheduling techniques with an adaptive channel information feedback period in OFDMA systems. In scheduling, it is important to know channel information by a fast, accurate and efficient way to improve the system performance. In this paper, we propose a packet scheduling technique with different information feedback periods according to the users' mobility. We formulate an algorithm by which each user determines feedback period to maximize the uplink throughput satisfying the required BER. ©2006 IEEE.
KSP 제안 키워드
Broadcasting system, Information feedback, OFDMA systems, Packet scheduling, Scheduling technique, System performance, Users' mobility, wireless broadcasting