AEE'08 Proceedings of the 7th WSEAS International Conference on Application of Electrical Engineering
WSEAS TRANSACTIONS on COMMUNICATIONS
Simplified SNR degradation under the combined effect of imperfections parameters in OFDM system
MUSP'09 Proceedings of the 9th WSEAS international conference on Multimedia systems & signal processing
A non-iterative technique for phase noise ICI mitigation in packet-based OFDM systems
IEEE Transactions on Signal Processing
An Investigation on the Sensitivity of Wavelet Packet Modulation to Time Synchronization Error
Wireless Personal Communications: An International Journal
BER Analysis of OFDM Systems Impaired by Phase Noise in Frequency-Selective Fading Channels
Wireless Personal Communications: An International Journal
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Orthogonality between the subcarriers of an orthogonal frequency division multiplexing (OFDM) system is affected by phase noise, which causes inter-carrier interference (ICI). The distribution of this interference term is studied in this paper. The distribution of the ICI for large number of carriers is derived and it is shown that the complex Gaussian approximation, generally applied in previous literature, is not valid and that the ICI term exhibits thicker tails. An analysis of the tail probabilities confirms these finding and shows that bit-error probabilities are severely underestimated when the Gaussian approximation for the ICI term is used, leading to too optimistic design criteria. Results from a simulation study confirm the analytical findings and show the validity of the limit distribution, obtained under the assumption of a large number of subcarriers, already for a modest number of subcarriers