Impacts of CFO, IQ Imbalance and Phase Noise on the system performance in OFDM systems

摘要：

OFDM systems are sensitive to front-end imperfections including CFO, IQ imbalance and phase noise. In practice, these imperfections are inevitable and would lead to significant performance degradation. In this paper, a general closed-form expression on average signal-to-interference-and-noise ratio (SINR) over multipath fading channels is derived for performance evaluation. When additive white Gaussian noise channels and flat fading channels are considered, the expression reduces to an exact expression and a tight upper bound, respectively. Our results show that the average SINR is inversely proportional to these front-end non-idealities.

作者: Rong Zhang Edward K.S.Au Roger S.Cheng

作者单位: Wireless IC System Design Center,HKUST Fok Ying Tung Graduate School,Nansha,China Modulation and Coding Department,Institute for Infocomm Research,A*STAR,Singapore Department of Electronic and Computer Engineering,The Hong Kong University of Science and Technology

会议类型: 国际会议

会议名称: The 11th IEEE International Conference on Communications Systems(第11届电子和电气工程师协会国际通信系统会议)(IEEE ICCS 2008)

会议地点: 广州

会议语种:英文

在线出版日期: 2008-11-19（万方平台首次上网日期，不代表论文的发表时间）