Bit error probability of OFDM system over frequency nonselective fast Rayleigh fading channels

被引:17
|
作者
Wan, L [1 ]
Dubey, VK [1 ]
机构
[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore
关键词
Bit error rate - Probability density function - Rayleigh fading - Signal distortion;
D O I
10.1049/el:20000944
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
The variation in the channel impulse response during one OFDM symbol, which occurs in fast fading channel environments, destroys the orthogonality between the subcarriers. As a result, a complicated multiple distortion and an extra additive distortion component are introduced. A theoretical derivation of the BER formula is presented, which involves a proposed method for calculating the probability density function (PDF) of the sum of N (N greater than or equal to 3) correlated Rayleigh random variables (RVs). The results obtained using the derived EER formula agree well with the simulation results.
引用
收藏
页码:1306 / 1307
页数:2
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