首页> 外文会议>International Workshop on Multimedia Interactive Protocols and Systems(MIPS 2004); 20041116-19; Grenoble(FR) >A Comparison of Opportunistic Scheduling Algorithms for Streaming Media in High-Speed Downlink Packet Access (HSDPA)
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A Comparison of Opportunistic Scheduling Algorithms for Streaming Media in High-Speed Downlink Packet Access (HSDPA)

机译:高速下行链路分组访问(HSDPA)中流媒体机会调度算法的比较

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High-Speed Downlink Packet Access (HSDPA) is the release 5 extension of WCDMA standard which provides high data rates (up to 10.8 Mbps) by using Adaptive Modulation/Coding (AMC) and fast packet scheduling. This paper presents a comparison of opportunistic scheduling algorithms for streaming media in HSDPA. We first present a discrete event model for HSDPA multimedia system and express stochastic QoS constraints that reflect the requirement for uninterrupted play-out. Next, we present a general structure of the opportunistic scheduling policies which exploit channel and/or buffer content variations for achieving the required QoS. By using computer simulations, we compare the performance of several special cases of the general policy in terms of the maximum number of the users that can be supported with the desired QoS constraint.
机译:高速下行链路分组访问(HSDPA)是WCDMA标准的第5版扩展,通过使用自适应调制/编码(AMC)和快速分组调度来提供高数据速率(高达10.8 Mbps)。本文对HSDPA中流媒体的机会调度算法进行了比较。我们首先为HSDPA多媒体系统提出了一个离散事件模型,并表达了反映连续播放要求的随机QoS约束。接下来,我们介绍机会调度策略的一般结构,该策略利用信道和/或缓冲区内容的变化来实现所需的QoS。通过使用计算机模拟,我们根据所需QoS约束可以支持的最大用户数量,比较了一般策略的几种特殊情况的性能。

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