Nakagami-m信道中MSK和MSK- ofdm性能分析

2011 IEEE International Conference on Computer Applications and Industrial Electronics (ICCAIE) Pub Date : 2011-12-01 DOI:10.1109/ICCAIE.2011.6162195

C. Mohd Din, R. Mohamad, W. Mansor

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引用次数: 1

摘要

本文在考虑理想MSK的情况下，研究了Nakagami-m信道模型下MSK- ofdm的误码率性能。对MSK和MSK- ofdm的性能进行了比较。采用FFT大小，n分别为128、256和512个子载波，并根据WiMAX规范在形状因子m = 1处选择零填充代替循环前缀作为保护带。仿真结果表明，当n=128时，MSK-OFDM在高EbNo值时比其他FFT点具有更好的性能，而在低EbNo值时，n=256和512具有更好的误码率性能。当EbNo大于15 dB时，补零不能有效地解决多径效应，导致误码率饱和。

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 of MSK and MSK-OFDM in Nakagami-m channel

This paper investigates the BER performance of MSK-OFDM in Nakagami-m channel model by considering ideal MSK. The performance comparison between MSK and MSK-OFDM has been evaluated. FFT size, n of 128, 256 and 512 sub-carriers was used and zero padded was chosen instead of cyclic prefix as a guard band at the shape factor m = 1 based on WiMAX specifications. The simulation results have shown that using n=128, the MSK-OFDM provided the best performance compared to other FFT points at high value of EbNo but n=256 and 512 give better BER performance at low EbNo. Zero padded could not resolve multipath effect efficiently which made BER to be saturated when EbNo was above 15 dB.

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2011 IEEE International Conference on Computer Applications and Industrial Electronics (ICCAIE)

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