Time-variant Doppler frequency estimation and compensation for mobile OFDM systems

Time-variant Doppler frequency estimation and compensation for mobile OFDM systems

In mobile OFDM communication systems, Doppler spread leads to the loss of orthogonality between the sub-carriers, limiting the achievable throughput of the moving transceivers. In this paper, the effect of Doppler spread in Rayleigh fading channels is investigated, and a method of time-variant Doppl...

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Veröffentlicht in:IEEE transactions on consumer electronics 2006-05, Vol.52 (2), p.336-340
Hauptverfasser: Jueping Cai, Jueping Cai, Zan Li, Zan Li, Yue Hao, Yue Hao, Jeuting Cai, Jeuting Cai
Format: Artikel
Sprache:eng
Schlagworte:
Channel estimation
Channels
Compensation
Computer simulation
Constraining
Dispersion
Doppler
Doppler effect
Electronics
Fading
Frequency estimation
Microelectronics
OFDM modulation
Orthogonal Frequency Division Multiplexing
Pulse modulation
Spreads
Throughput
Transceivers
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Beschreibung
Zusammenfassung:In mobile OFDM communication systems, Doppler spread leads to the loss of orthogonality between the sub-carriers, limiting the achievable throughput of the moving transceivers. In this paper, the effect of Doppler spread in Rayleigh fading channels is investigated, and a method of time-variant Doppler frequency estimation and compensation is proposed for mobile OFDM systems. Computer simulation results are included to support our development.
ISSN:0098-3063
1558-4127
DOI:10.1109/TCE.2006.1649647