空军工程大学学报（自然科学版）2017，Vol.18Issue(1)：81-85,5.DOI:10.3969/j.issn.1009-3516.2017.01.014
瑞利多径衰落信道下OFDM/OQAM系统容量分析
An Analysis of the Capacity in OFDM/OQAM Systems under Condition of Multipath Rayleigh-Fading Channels
摘要
Abstract
Capacity is an important indicator in communication systems performance.This paper researches on the mean value of the capacity and the variance in Orthogonal Frequency Division Multiplexing/Offset Quadrature Amplitude Modulation(OFDM/OQAM) system under condition of multipath Rayleigh-Fading channels,obtains the probability density function (PDF) of Rayleigh channels model,and deduces the alliance of probability density function in two random relevance Rayleigh channels.The paper gets the mathematical expression about the mean and variance OFDM/OQAM system capacity in multipath Rayleigh-Fading channels,where the function of the parameter is related to the number of the subcarriers of an OFDM/OQAM system,the signal to noise ratio(SNR) and the number of multipath.The result shows that the systems mean is proportional to SNR and inverse proportional to the number of the subcarriers;the systems variance is defined by SNR and the number of multipath.关键词
正交频分复用/偏移正交幅度调制/容量/瑞利衰落信道Key words
OFDM/OQAM/capacity/Rayleigh-fading channel分类
信息技术与安全科学引用本文复制引用
张凯,薛伦生,陈西宏,刘晓鹏,贺绍桐..瑞利多径衰落信道下OFDM/OQAM系统容量分析[J].空军工程大学学报（自然科学版）,2017,18(1):81-85,5.基金项目
国家自然科学基金(61671468) （61671468）
