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A new simple method employing phase noise estimation for OFDM systems over multipath fading channel

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4 Author(s)
Zahedi, A. ; Fac. of Sci., Islamic Azad Univ., Kermanshah, Iran ; Noroozi, M. ; Bakhshi, H. ; Baniamerian, M.J.

The performance of an OFDM system can be strongly degraded by the presence of random phase noise. In the proposed compensation scheme, we jointly estimate channel and phase noise and data. This estimation consists of three stages. In the first stage, phase noise, channel and transmitted data are initially estimated by using of linear interpolation method. In the second stage, with Linear Least Square Estimation (LLSE) method, phase noise and data estimation are updated to obtain more accurate estimation. Decision Feedback is applied in the third stage. It is shown by computer simulations that the proposed scheme can effectively mitigate the phase noise and improve the bit error rate of OFDM systems.

Published in:

Advanced satellite multimedia systems conference (asma) and the 11th signal processing for space communications workshop (spsc), 2010 5th

Date of Conference:

13-15 Sept. 2010