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arXiv 2201.06486cs.NI
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二阶无线网络优化理论及其在AoI中的应用

A Theory of Second-Order Wireless Network Optimization and Its Application on AoI

Daojing Guo, Khaled Nakhleh, I-Hong Hou, Sastry Kompella, Clement Kam

摘要:

本文介绍了一种新的理论框架,优化无线网络的二阶行为。与现有的网络效用最大化技术,只考虑一阶统计,这个框架模型的平均值和时间方差的每个随机过程。包含的时间方差使得这个框架非常适合建模状态衰落无线信道和新兴的网络性能指标,如年龄的信息(AoI)。使用这个框架,我们尖锐的无线接入网络的二阶容量区域的特征。我们还提出了一个简单的调度策略,并证明了它可以实现二阶容量区域中的每个内点。为了证明这个框架的实用性,我们将其应用于一个重要的开放问题:吉尔伯特-埃利奥特通道的AOI优化。我们表明,这个框架提供了一个非常准确的AoI特性。此外,它导致一个易于处理的调度策略,优于其他现有的工作。

英文摘要:

This paper introduces a new theoretical framework for optimizing second-order behaviors of wireless networks. Unlike existing techniques for network utility maximization, which only considers first-order statistics, this framework models every random process by its mean and temporal variance. The inclusion of temporal variance makes this framework well-suited for modeling stateful fading wireless channels and emerging network performance metrics such as age-of-information (AoI). Using this framework, we sharply characterize the second-order capacity region of wireless access networks. We also propose a simple scheduling policy and prove that it can achieve every interior point in the second-order capacity region. To demonstrate the utility of this framework, we apply it for an important open problem: the optimization of AoI over Gilbert-Elliott channels. We show that this framework provides a very accurate characterization of AoI. Moreover, it leads to a tractable scheduling policy that outperforms other existing work.

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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