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Packet Scheduling Scheme for Real Time Video Traffic in WCDMA Downlink
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- 발행일
- 200303
- 출처
- Mobile Communications 2002 (LNCS 2524), v.2524, pp.285-293
- 협약과제
- 03MM1100, 4세대 이동통신 기술개발, 한기철
- 초록
- In this paper, we propose a new packet scheduling algorithm to support the real-time video traffic in WCDMA downlink. Accumulation counter is introduced as a new priority metric to determine the transmission priority among several data users. We consider a two-dimensional transmission structure of using both the frame period in the time-axis and the OVSF codes in the code-axis at the same time, which is similar to a fast packet scheduling concept in the emerging high speed downlink packet access (HSDPA) specification of WCDMA system. Simulation results show that the proposed approach provides an excellent delay performance as compared with conventional algorithm for real-time video traffic. © Springer-Verlag Berlin Heidelberg 2003.
- KSP 제안 키워드
- Fast packet scheduling, High Speed, OVSF codes, Real-time video, Scheduling Scheme, Transmission Priority, Transmission structure, delay performance, packet scheduling algorithm, simulation results, two-dimensional(2D)