Equalization and blind CFO estimation for performance enhancement of OFDM communication systems using discrete cosine transform

被引：20
|
作者：
Ramadan, Khaled [1 ]
Dessouky, Moawad I. [2 ]
Abd El-Samie, Fathi E. [2 ]
Fiky, Ahmed S. [3 ,4 ]
机构：
[1] Higher Inst Engn Al Shorouk City, Dept Elect & Elect Commun Engn, Cairo, Egypt
[2] Menoufia Univ, Dept Elect & Elect Commun Engn, Fac Elect Engn, Menoufia, Egypt
[3] Higher Inst Engn Al Shorouk City, Dept Phys, Cairo, Egypt
[4] Higher Inst Engn Al Shorouk City, Math Engn Dept, Cairo, Egypt
来源：
INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS | 2020年 / 33卷 / 03期
关键词：
CFO; DCT; JLRZF; OFDM; FREQUENCY OFFSET; PAPR REDUCTION; SYNCHRONIZATION; SIGNALS;
D O I：
10.1002/dac.3984
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In wireless communication systems, equalization is one of the most important schemes to improve the system performance. This paper consists of two main parts. The first part presents a blind carrier frequency offset (CFO) estimation scheme based on discrete cosine transform (DCT). The second part presents a joint low-complexity equalization, and CFO compensation in orthogonal frequency division multiplexing (OFDM) systems. Moreover, in the second part, we present a joint low-complexity regularized zero-forcing (JLRZF) equalizer based on the proposed CFO estimation scheme. Simulation results show that the proposed configuration has the ability to perform blind CFO estimation and enhance the system performance in the presence of estimation errors.
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收藏
页数：12
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