Impact of carrier frequency offset on the capacity of MIMO-OFDM systems

被引：3
|
作者：
Tutgun, Rasit [1 ]
Aktas, Emre [1 ]
机构：
[1] Hacettepe Univ, Dept Elect & Elect Engn, TR-06800 Ankara, Turkey
来源：
TRANSACTIONS ON EMERGING TELECOMMUNICATIONS TECHNOLOGIES | 2012年 / 23卷 / 07期
关键词：
MIMO-OFDM; carrier frequency offset; channel estimation; channel capacity; CHANNEL ESTIMATION; SYNCHRONIZATION; IMBALANCE; PERFECT; CFO;
D O I：
10.1002/ett.2517
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
Carrier frequency offset (CFO) is a factor that corrupts subchannel orthogonality resulting to performance degradation in multiple-input multiple-output orthogonal frequency division multiplexing systems. We investigate the effect of CFO on the channel estimation and the effect of both CFO and channel estimation on the system capacity. The main result of the paper is a lower bound on the capacity for a given CFO and channel estimation error covariance. The lower bound is based on the Gaussian bound of the multiplicative noise because of channel estimation errors. Copyright (C) 2012 John Wiley & Sons, Ltd.
引用
收藏
页码：625 / 631
页数：7
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