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SNR Analysis of OFDM Systems in the Presence of Carrier Frequency Offset for Fading Channels

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4 Author(s)
Jungwon Lee ; Marvell Semicond., Inc., Santa Clara, CA ; Hui-Ling Lou ; Toumpakaris, D. ; Cioffi, J.M.

This letter analyzes the effect of the carrier frequency offset on orthogonal frequency division multiplexing (OFDM) systems for multipath fading channels. A simple approximate expression for the average signal-to-noise ratio (SNR) is derived. This approximate expression is shown to be an upper bound of the average SNR for flat fading channels and an exact expression for the AWGN channel. The approximate average SNR expression is validated using Monte Carlo simulation for both flat fading channels and frequency-selective fading channels

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Wireless Communications, IEEE Transactions on  (Volume:5 ,  Issue: 12 )