时变瑞利衰落信道下跳频非相干GFSK的性能研究

Int. J. Wirel. Opt. Commun. Pub Date : 2004-06-01 DOI:10.1142/S0219799504000209

Huaping Liu, V. Venkatesan, M. Magaña, C. Nilsen, R. Kyker

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引用次数: 0

摘要

给出了在加性高斯白噪声(AWGN)破坏的时变瑞利衰落信道中采用差分检测的跳频高斯频移键控(GFSK)性能的解析处理方法。导出了误码率(BER)作为Eb/N0、调制指数、信道多普勒频移和预调制滤波器时带宽积的函数的封闭表达式。分析了一种辅助导频符号降低跳频误差的方案。

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Performance of Frequency Hopped Noncoherent GFSK over Time-Varying Rayleigh Fading Channels

An analytical treatment of the performance of frequency hopped Gaussian frequency shift keying (GFSK) with differential detection in time-varying Rayleigh fading channels corrupted by additive white Gaussian noise (AWGN) is presented. Closed-form expressions for the bit error rate (BER) as a function of Eb/N0, modulation index, channel Doppler shift, and the time-bandwidth product of the pre-modulation filter are derived. A pilot symbol-assisted scheme to lower the error floor caused by frequency hopping is analyzed.

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Int. J. Wirel. Opt. Commun.

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