CARRIER FREQUENCY OFFSET CORRECTION IN OFDM SYSTEMS BY BLIND IDENTIFICATION ALGORITHM

被引：0
作者：
Mittal, Manish [1 ]
Sood, Neetu [1 ]
Khosla, Arun [1 ]
机构：
[1] Natl Inst Technol, Dept Elect Commun Engn, Jalandhar, India
来源：
4TH INTERNATIONAL CONFERENCE ON ADVANCED COMPUTER THEORY AND ENGINEERING ( ICACTE 2011) | 2011年
关键词：
Channel Estimation; CFO; ICI; ICA; LMMSE; BER; Orthogonal Frequency Division Multiplexing (OFDM); Cyclic Prefix (CP);
D O I：
暂无
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
In this paper, the effect of Blind Channel Identification algorithm has been analyzed for OFDM system suffering from Carrier Frequency Offset (CFO). This CFO introduces Inter-Carrier Interference (ICI) problem which causes severe degradation of the Bit Error Rate (BER) performance of the OFDM receiver. Here, we have usedIndependent Component Analysis (ICA), a blind estimation algorithm along with Linear Minimum Mean Square Error Estimation (LMMSE) technique to estimate and compensate the inefficiency causedby CFO during LMMSE channel estimation. Simulation result showsthat BER of the OFDM system reduces by applying ICA.
引用
收藏
页码：79 / 83
页数：5
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