Combined Effect Analysis of Wiener Phase Noise and Doppler Spread in OFDM Communication System

Author

Mahmoud, Mohammad ; Riad, Mona

Author_Institution

Dept. of Signals, Air Defence Forces, Cairo

Volume

0

fYear

2006

fDate

14-16 March 2006

Firstpage

1

Lastpage

8

Abstract

We derive an exact closed-form expression for the SNR degradation due to the combined effect of Wiener phase noise and Doppler spread in the OFDM system corrupted by shadowed multipath effect. The derivation depends on the continuous time signal model analysis assuming the subcarrier data symbols are constants. A simple approximate SNR degradation formula is obtained for slow fading channel, small phase noise effect and small phase noise linewidth-to-maximum Doppler frequency ratio. This approximate formula shows that the degradation factor in dB is the summation of the degradation factor in dB due to the phase noise effect only and the degradation factor in dB due to the Doppler spread only

Keywords

Doppler effect; OFDM modulation; continuous time systems; fading channels; multipath channels; phase noise; stochastic processes; Doppler spread; OFDM communication system; Wiener phase noise; closed-form expression; continuous time signal model analysis; fading channel; orthogonal frequency division multiplexing; shadowed multipath effect; subcarrier data symbol; Degradation; Delay; Fading; Local oscillators; OFDM; Phase noise; Power system modeling; Random variables; Signal analysis; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Science Conference, 2006. NRSC 2006. Proceedings of the Twenty Third National

Conference_Location

Menoufiya

Print_ISBN

977-5031-84-2

Electronic_ISBN

977-5031-84-2

Type

conf

DOI

10.1109/NRSC.2006.386368

Filename

4275165