Performance of QPSK/OFDM on frequency-selective Rayleigh fading channels

被引：0

作者：

Jwa, JW ^{[1
]}

机构：

[1] Jeju Natl Univ, Fac Telecommun & Comp Engn, Mobile Commun Lab, Jeju, South Korea

来源：

IEICE TRANSACTIONS ON COMMUNICATIONS | 2004年 / E87B卷 / 05期

关键词：

orthogonal frequency division multiplexing (OFDM); bit error rate (BER); multipatliftiding; channel estimation;

D O I：

暂无

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 this paper, we derive expressions for the bit error probability of QPSK/OFDM on frequency-selective Rayleigh fading channels. In the OFDM system, ICI (interchannel interference) caused by Doppler spread of the channel degrades the error performance of the system and introduces the error floor even for coherent detection. Analysis results show that the error performance of QPSK/OFDM can be degraded as the normalized maximum Doppler frequency f(D)/B-sub is increased where f(D) is the maximum Doppler frequency and B-sub is the subchannel bandwidth. Computer simulations confirm the theoretical analysis results for BPSK and QPSK signals.

引用

页码：1407 / 1411

页数：5

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