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Reduced-complexity UWB time-reversal techniques and experimental results

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3 Author(s)
Nan Guo ; Tennessee Technol. Univ. (TTU), Cookeville ; Sadler, B.M. ; Qiu, R.C.

This paper presents a reduced-complexity time reversal technique for ultra-wideband (UWB) communications. Time reversal takes advantage of rich scattering environments to achieve signal focusing via transmitter-side processing, which enables the use of simple receivers. The goal of this paper is to demonstrate a UWB time reversal system architecture based on experimental results and practical pulse waveform, taking into account some practical constraints, and to show feasibility of UWB time reversal. Pre-decorrelating in addition to time reversal processing is considered for a downlink multiuser configuration. Multiple transmit antennas are employed to improve the performance.

Published in:

Wireless Communications, IEEE Transactions on  (Volume:6 ,  Issue: 12 )