Carrier Frequency Offset Estimation & Compensation in AMC OFDM

被引：0

作者：

Patel, V. U. ^{[1
]}

Shah, Hardip K. ^{[2
]}

Soni, Himanshu B. ^{[3
]}

Dasgupta, K. S. ^{[4
]}

机构：

[1] MIT Coll Engn, Pune, Maharashtra, India

[2] DD Univ, Nadiad, India

[3] GCET, V V Nagar, India

[4] IIST, Trivandrum, Kerala, India

来源：

2013 INTERNATIONAL CONFERENCE ON INTELLIGENT SYSTEMS AND SIGNAL PROCESSING (ISSP) | 2013年

关键词：

OFDM; CFO; ML estimation; Adaptive Modulation; Coding;

D O I：

暂无

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

Sensitivity to Carrier Frequency Offset (CFO) is a well known issue in Orthogonal Frequency Division Multiplexing (OFDM). The recent wireless standards, which propose OFDM as modulation technique, prefer to use it with Adaptive Modulation and Coding (AMC). Inter carrier interference (ICI) created by CFO disturbs the selection of modulation order and channel coding rate in AMC. Effect of CFO on OFDM with AMC is studied in this work. The survey of Fractional CFO (FCFO) estimation techniques is presented in this paper. The optimalbut complex to implement method for CFO estimation-the ML estimation is applied to OFDM with AMC. Efforts are made to reduce its complexity while actual implementation. Performance comparison of original and reduced complexity methods are presented based on accuracy and complexity.

引用

页码：302 / 305

页数：4

共 10 条

[1]

[Anonymous], 2003, IEEE STAND LOC ME 16

[2]

Das Suvra Sekhar, INFLUENCE INTERCARRI

[3]

Halford K., 2001, MULTIPATH MEASUREMEN

[4] A High-Efficiency Carrier Estimator for OFDM Communications [J].