在OFDMA自适应资源分配中使用M-LWDF支持多重QoS

The 13th IEEE Workshop on Local and Metropolitan Area Networks, 2004. LANMAN 2004. Pub Date : 2004-04-25 DOI:10.1109/LANMAN.2004.1338435

Kanghee Kim, Insoo Koo, Seokjin Sung, Kiseon Kim

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引用次数: 27

摘要

在正交频分复用(OFDM)多址(OFDMA)系统的自适应资源分配中，采用改进的最大加权延迟优先(M-LWDF)原则考虑了多重服务质量(QoS)支持。我们提出了一种基于子信道分配的M- lwdf (M Andrews et al.， Feb. 2001)，它可以满足OFDMA系统中延迟敏感业务和数据速率敏感业务的不同QoS需求。仿真结果表明，所提出的基于M-LWDF的子信道分配在保持调度规则的稳定性和多QoS支持的灵活性的同时，提供了可控的QoS保障。

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Multiple QoS support using M-LWDF in OFDMA adaptive resource allocation

In this paper, we consider multiple quality of service (QoS) support by using modified largest weighted delay first (M-LWDF) discipline in the adaptive resource allocation of the orthogonal frequency division multiplexing (OFDM) multiple access (OFDMA) systems. We propose a M-LWDF (M Andrews et al., Feb. 2001) based on subchannel assignment, which can satisfy different QoS requirements of services including delay-sensitive and data rate-sensitive traffics in OFDMA systems. The simulation shows that the proposed M-LWDF based subchannel assignment provides controlled QoS provisions while maintaining both the stability of scheduling discipline and the flexibility of the multiple QoS support.

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The 13th IEEE Workshop on Local and Metropolitan Area Networks, 2004. LANMAN 2004.

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