Indoor Time Reversal Wireless Communication: Experimental Results for Localization and Signal Coverage
George C. Alexandropoulos, Ramin Khayatzadeh, Mohamed Kamoun, Ganghua Yang, Mérouane Debbah
Abstract
Communication based on Time Reversal (TR) exploits rich multipath radio propagation for high resolution spatiotemporal focusing. It refers to the process of transmitting a received signal in a time reversed order, profiting from channel's spatial reciprocity. Recent theoretical studies have shown that signal processing techniques for TR communication have the potential of realizing the benefits of massive antenna systems using only a single antenna base station and simple receive processing circuitry. In addition, TR can offer highly accurate localization, especially when considered for indoor wireless positioning systems. Particularly, the larger the transmission power and bandwidth are, the more observable are the multiple channel paths, hence, TR capability for localization becomes more profitable. In this paper, we implement TR wireless communication at 3.5GHz using up to 600MHz bandwidth channel sounding signals. We present extensive experimental results showcasing the concept's potential for indoor cm-level localization and signal coverage extension.
BibTeX
@inproceedings{icassp2019_indoortimerevers,
title = {Indoor Time Reversal Wireless Communication: Experimental Results for Localization and Signal Coverage},
author = {George C. Alexandropoulos and Ramin Khayatzadeh and Mohamed Kamoun and Ganghua Yang and Mérouane Debbah},
booktitle = {ICASSP 2019},
year = {2019}
}