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首页> 外文会议>Personal Wireless Communications, 2005. ICPWC 2005. 2005 IEEE International Conference on >Simple fairness metric for time-shared wireless data networks
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Simple fairness metric for time-shared wireless data networks

机译：分时无线数据网络的简单公平性指标

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Third generation networks (e.g, 1xEV-DO, 1xEV-DV and WCDMA) all improve the efficiency of data transmissions by taking advantage of the fact that data is less sensitive to delays than voice. Therefore, instead of serving a data stream synchronously, they allow for bursty servicing of each data stream. In the forward link, each data stream burst is typically scheduled when the corresponding mobile is in favorable radio conditions to maximize radio resource efficiency. This results in a trade-off between total sector throughput and fairness among users within the sector. Total sector throughput is increased by serving users in good average radio conditions while fairness is achieved by providing all users with identical throughputs. Naturally, these two objectives conflict and some trade-off must be made between them. While sector throughput is easily measured, the fairness of different schedulers have typically been compared by visual inspection of the cumulative distribution function of user throughputs. We recommend using a more objective criterion for comparing schedulers, namely the Jain fairness index. We illustrate how this metric accurately reflects fairness and provide examples showing the throughput/fairness trade-off.
机译：第三代网络（例如1xEV-DO，1xEV-DV和WCDMA）都利用数据对延迟的敏感性低于语音这一事实，提高了数据传输的效率。因此，它们允许对每个数据流进行突发性服务，而不是同步地为数据流提供服务。在前向链路中，通常在相应的移动设备处于有利的无线电条件下时调度每个数据流突发，以使无线电资源效率最大化。这导致总扇区吞吐量与该扇区内用户之间的公平性之间的权衡。通过在良好的平均无线电条件下为用户提供服务，可以提高总扇区吞吐量，而通过为所有用户提供相同的吞吐量来实现公平性。当然，这两个目标是冲突的，因此必须在两者之间进行权衡。虽然扇区吞吐量很容易衡量，但通常通过目测检查用户吞吐量的累积分布函数来比较不同调度程序的公平性。我们建议使用比较客观的标准来比较调度程序，即Ja那教公平指数。我们将说明此度量标准如何准确反映公平性，并提供显示吞吐量/公平性权衡的示例。

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