Data transmission using time reversal technique - Results of reverberating chamber measurements

We propose to study the time reversal (TR) technique for wireless communications. In a TR application, the time-reversed signal of the channel impulse response (CIR) of the medium is retransmitted back from the base station. Thus a compensation of the multipath effects leads to a space-time focused signal on the receiver position. Spatial focusing allows a concentration of the signal power on the receiver position while reducing it at positions far from the receiver. Temporal focusing reduces echoes of the received signal and simplify its processing. In this paper, we explain the method used for data transmission and we present experimental results.