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Conference Paper
ML-PLFS Scheme for Multimedia Services in OFDMA system
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- Authors
- Sook Jin Lee, Whan Woo Kim
- Issue Date
- 2006-12
- Citation
- IEEE Semiconductor Interface Specialists Conference (SISC) 2006, pp.1-5
- Language
- English
- Type
- Conference Paper
- Abstract
- In this paper, we propose packet scheduling discipline called multi-level packet loss fair scheduling (ML-PLFS). When we assume the non-real-time traffic (such as WWW traffic) as a background system load, the packet loss of each user from different real-time traffics is fairly distributed according to the QoS requirements in the context of the multi-level packet scheduler structure. We consider OFDMA system. The basic frame structure of the system is for downlink in a cellular packet network, where the time axis is divided into a finite number of slots within a frame and the frequency axis is segmented into subchannels that consist of multiple subcarriers. In addition to compensate fast and slow channel variation, we employ link adaptation technique such as AMC. From the simulation results, our proposed ML-PLFS can support more users compared to PLFS without loss of fairness in muti-media traffic model.