A cooperative localization-aided tracking algorithm for THz wireless systems

TL;DR

This paper introduces a cooperative localization and tracking algorithm for THz wireless systems that combines AoA and two-way TOA methods, improving accuracy and reducing deafness through cooperation among base stations.

Contribution

It presents a novel cooperative algorithm that enhances user equipment tracking accuracy and reliability in THz systems by integrating AoA and two-way TOA techniques with multi-base station cooperation.

Findings

Algorithm reduces deafness and estimation errors.

Cooperation among base stations improves tracking accuracy.

Performance surpasses existing fast channel tracking methods.

Abstract

In this paper, a novel cooperation-aided localization and tracking approach, suitable for terahertz (THz) wireless systems is presented. It combines an angle of arrival (AoA) tracking algorithm with the two-way time of arrival method, in order to accurately track the user equipment (UE) position and reduce the deafness caused by the estimation errors of the tracking algorithms. This algorithm can be used by one base station (BS) to estimate the UE position, or by multiple BSs, that cooperate with each other to increase the accuracy of the estimations, as well as the probability of successful estimations and guarantee low-estimation overhead. The efficiency of the algorithm is evaluated in terms of deafness and probability of successful AoA estimation and is compared with the corresponding performance of the fast channel tracking algorithm.