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

被引：4
|
作者：
Zhang, Rong [1 ]
An, Edward K. S. [2 ]
Cheng, Roger S. [3 ]
机构：
[1] HKUST Fok Ying Tung Grad Sch, Wireless IC Syst Design Ctr, Nansha, Peoples R China
[2] Inst Infocomm Res, Dept Modulat & Coding, Singapore, Singapore
[3] Hong Kong Univ Sci & Technol, Dept Elect & Comp Engn, Hong Kong, Hong Kong, Peoples R China
来源：
2008 11TH IEEE SINGAPORE INTERNATIONAL CONFERENCE ON COMMUNICATION SYSTEMS (ICCS), VOLS 1-3 | 2008年
关键词：
D O I：
10.1109/ICCS.2008.4737341
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
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.
引用
收藏
页码：1041 / +
页数：2
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