双选择性衰落信道下WFRFT-OFDM系统载波频偏性能分析

2015 Sixth International Conference on Intelligent Control and Information Processing (ICICIP) Pub Date : 2015-11-01 DOI:10.1109/ICICIP.2015.7388135

Shuang Yu, Hao Dai, Keqi Wu, Guoxiang Zhou, Xiaoxia Cheng, Chaoyong Xu

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引用次数: 9

摘要

本文分析了在时频衰落信道下，频率偏移对加权分数傅里叶变换系统的影响。首次推导了信号干扰比(SIR)的表达式。分别对单载波(SC)、OFDM和WFRFT-OFDM系统的BPSK调制方案的误码率性能进行了仿真。仿真结果表明，当载波偏移存在时，WFRFT系统通过选择最优分数阶比SC和OFDM系统都具有优越性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Performance analysis for WFRFT-OFDM systems to carrier frequency offset in doubly selective fading channels

In this paper, we analyze the effects of frequency offset to Weighted fractional Fourier transform (WFRFT) system under the time frequency fading channel. The expression of signal-to-interference ratio (SIR) due to ICI and ISI is derived for the first time. The bit error rate (BER) performance of BPSK modulation scheme of single-carrier (SC), OFDM and WFRFT-OFDM systems are simulated respectively. Simulation results show that when carrier offset exists, WFRFT system has superiority over both SC and OFDM systems by choosing an optimal fractional order.

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来源期刊

2015 Sixth International Conference on Intelligent Control and Information Processing (ICICIP)

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