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arXiv 1601.05928cs.ITmath.IT
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大规模信道信息在预测性资源分配中的作用

Role of Large Scale Channel Information on Predictive Resource Allocation

Chuting Yao, Chenyang Yang

摘要:

当未来可达速率完全已知时,预测性资源分配可以为业务提供优于传统资源分配的高性能增益,而没有严格的延迟要求。然而,在无线信道中很难获得未来的信道信息,尤其是小规模衰落增益。在本文中,我们分析表明,未来的大规模信道信息可以捕获几乎所有的性能增益知道未来的信道作为一个例子,节能资源分配。这个结果对于实际系统是重要的,因为大规模的信道增益可以很容易地从移动用户的预测轨迹和无线电地图估计。仿真结果验证了我们的分析,并说明了大规模信道增益的估计误差对节能的影响。

英文摘要:

When the future achievable rate is perfectly known, predictive resource allocation can provide high performance gain over traditional resource allocation for the traffic without stringent delay requirement. However, future channel information is hard to obtain in wireless channels, especially the small-scale fading gains. In this paper, we analytically demonstrate that the future large-scale channel information can capture almost all the performance gain from knowing the future channel by taking an energy-saving resource allocation as an example. This result is important for practical systems, since large-scale channel gains can be easily estimated from the predicted trajectory of mobile users and radio map. Simulation results validate our analysis and illustrate the impact of the estimation errors of large-scale channel gains on energy saving.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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