Location information is often used as a proxy to infer the performance of a wireless communication link. Using a very simple model, this letter unveils a basic statistical relation between the location estimation uncertainty and wireless link reliability. First, a Cram\'er-Rao bound for the localization error is derived. Then, wireless link reliability is characterized by how likely the outage probability is to be above a target threshold. We show that the reliability is sensitive to location errors, especially when the channel statistics are also sensitive to the location. Finally, we highlight the difficulty of choosing a rate that meets target reliability while accounting for the location uncertainty.
翻译：位置信息通常被用作一种替代物,用来推断无线通信链接的性能。使用非常简单的模型,本信揭示了地点估计不确定性和无线链接可靠性之间的基本统计关系。首先,得出了用于定位错误的Cram\'er-Rao。然后,无线链接的可靠性的特征是,断电概率有多可能超过目标阈值。我们表明,可靠性对位置错误十分敏感,特别是当频道统计数据对位置也很敏感时。最后,我们强调在计算位置不确定性的同时,很难选择一个符合目标可靠性的费率。
相关内容
微信扫码咨询专知VIP会员