Spectral Efficiency of Asynchronous MC-CDMA With Frequency Offset Over Correlated Fading

被引：15
|
作者：
Ahmed, Junaid [1 ]
Hamdi, Khairi Ashour [2 ]
机构：
[1] COMSATS Inst Informat Technol, Dept Elect Engn, Islamabad 44000, Pakistan
[2] Univ Manchester, Sch Elect & Elect Engn, Manchester M16 1QD, Lancs, England
来源：
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2013年 / 62卷 / 07期
关键词：
Asynchronous multicarrier code-division multiple-access (MC-CDMA); correlated fading; frequency offset; inter-carrier interference; multiple access interference; spectral efficiency; uplink; MULTICARRIER CDMA; PERFORMANCE; SYSTEMS; MAI;
D O I：
10.1109/TVT.2013.2253339
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：
Multiple-access interference (MAI) and intercarrier interference (ICI) due to a carrier frequency offset are two major factors that deteriorate the performance of multicarrier code-division multiple access (MC-CDMA) in wireless communications. This paper presents a new mathematical analysis for the spectral efficiency of asynchronous MC-CDMA communication systems over a frequency-selective Rayleigh fading environment. It employs accurate statistical models for MAI and ICI that account for the correlation between adjacent subcarriers to derive a new simple expression. An approximate expression for the spectral efficiency is also provided, which reduces complexity.
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页码：3423 / 3429
页数：7
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