Name
Title | ||
|---|---|---|
Experimental Study of UWB Impulse Response and Time Reversal Communication Technique up to 12 GHz |
Abstract | ||
|---|---|---|
In this study, we present an experimental study of the time reversal (TR) technique in a single-input single-output configuration over the frequency range of 2-12 GHz. Our TR implementation is demonstrated to have high accuracy by comparing experimental TR traces with theoretical traces computed from the measured channel response. A special emphasis of this work is to investigate the effectiveness of TR in typical line-of-sight (LOS) and non-line-of-sight (NLOS) indoor environments for omni-directional antennas. We discuss the effects of the channel multipath dispersion on the received responses in both time and frequency domains. "RMS delay spread" and "peak-to-average power ratio" are calculated as two basic parameters for impulse response and TR performance evaluations. Our study suggests that the effectiveness of TR is subject to a trade-off between competing effects - namely, compensation of spectral phase variation (which leads to compression) and aggravation of spectral amplitude structure (which opposes compression). TR appears to mitigate multipath dispersion in NLOS channels to a modest extent. However, in LOS scenarios the effectiveness of TR in compressing time spread associated with multipath delay appears to be very limited. |
Year | DOI | Venue |
|---|---|---|
2011 | 10.1109/VETECF.2011.6093022 | Vehicular Technology Conference |
Keywords | Field | DocType |
omnidirectional antennas,performance evaluation,telecommunication channels,ultra wideband communication,LOS indoor,NLOS channels,TR traces,UWB impulse response,channel multipath dispersion,channel response,frequency 2 GHz to 12 GHz,line-of-sight,multipath dispersion mitigation,non-line-of-sight indoor,omni-directional antennas,peak-to-average power ratio,performance evaluations,spectral phase variation,time reversal communication technique,time reversal technique | Non-line-of-sight propagation,Impulse response,Oscilloscope,Power ratio,Computer science,Delay spread,Communication channel,Electronic engineering,Multipath delay,Amplitude | Conference |
ISSN | ISBN | Citations |
1090-3038 | 978-1-4244-8328-0 | 0 |
PageRank | References | Authors |
0.34 | 1 | 2 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Amir Dezfooliyan | 1 | 7 | 2.30 |
| Andrew M. Weiner | 2 | 5 | 3.63 |