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http://dx.doi.org/10.5515/KJKIEES.2007.18.7.757

Performance Analysis of OFDM Communication System with the IQ Imbalance and Phase Noise  

Kim, Sang-Kyun (Dept. of Electronic Engineering and Research Institute of Computer, Information & Communication, Chungbuk National University)
Ryu, Heung-Gyoon (Dept. of Electronic Engineering and Research Institute of Computer, Information & Communication, Chungbuk National University)
Kang, Byung-Su (RF Technology Team, Mobile Telecommunication Research Division, ETRI)
Lee, Kwang-Chun (RF Technology Team, Mobile Telecommunication Research Division, ETRI)
Publication Information
Abstract
OFDM system is an excellent high speed transmission method but it is seriously sensitive to the phase noise and IQ imbalance. Therefore, in this paper, we analyze the communication performance of the OFDM communication system with IQ imbalance and phase noise. Phase noise's variance can be calculated by integral calculus of phase noise power spectrum. From simulation results, it can be shown that the BER performances show different change according to the phase noise variance and IQ imbalance amount. When amplitude imbalance is ${\varepsilon}$=0.2; 0.3; 0.4 and phase imbalance is ${\phi}=10^0$, and distribution of phase noise is ${\sigma}^2=0.012$, BER is degraded by 2.88 dB, 3.61 dB, 4.09 dB in $10^{-5}$ in the respect of the SNR penalty.
Keywords
Phase Noise; OFDM and IQ Imbalance; BER Analysis;
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Times Cited By KSCI : 2  (Citation Analysis)
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