Modelling and practical iterative mitigation of phase noise in SC-FDMA
Personal Indoor and Mobile Radio Communications（2012）
摘要
This paper addresses the modelling, and practical estimation and mitigation of phase noise in single-carrier frequency division multiple access (SC-FDMA) systems. Special emphasis is kept on 3GPP Long Term Evolution signals. First, new way to model the phase noise effect in SC-FDMA is given and the phase noise effect is analysed based on it. Then, practical (based on practical signals and signalling environment) phase-noise estimation algorithm and a way to mitigate the effects are proposed. The performance of the algorithm is studied in practical extended ITU-R Vehicular A multipath channel and with both free-running oscillator and phase-locked-loop oscillator models.
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关键词
3G mobile communication,Long Term Evolution,frequency division multiple access,multipath channels,phase locked loops,phase locked oscillators,phase noise,3GPP Long Term Evolution signal,ITU-R vehicular,SC-FDMA,free- running oscillator,iterative mitigation,multipath channel,phase noise effect,phase-locked-loop oscillator model,FRO oscillator,LTE,LTE-A,PLL Oscillator,SC-FDMA,digital signal processing,dirty-RF,mitigation,phase noise
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