This letter statistically characterizes the impact of location estimation uncertainty in the wireless communication reliability, in which location information is used as a proxy to choose the rate. First, a Cram\'er-Rao bound for the localization error is derived. Then, through a simplified setup, we show that the reliability - characterized by how likely the outage probability is to be above a target threshold - can be 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 both meets target reliability and accounts for the location uncertainty, and that the most direct solutions suffer from being too conservative.
翻译:本字母在统计上说明了无线通信可靠性地点估计不确定性的影响,其中使用地点信息作为选择费率的替代物。 首先,生成了用于定位错误的Cram\'er-Rao。 然后,通过简化设置,我们表明,可靠性――其特征是,断电概率多可能超过目标阈值――对于位置错误可能十分敏感,特别是当频道统计数据也对位置敏感时。 最后,我们强调选择既满足目标可靠性又考虑到位置不确定性的费率的困难,最直接的解决办法因过于保守而受到影响。