Performance analysis of binary DPSK modulation schemes over Hoyt fading channels

N. Hajri, N. Youssef, M. Pätzold
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引用次数: 5

Abstract

This paper presents a performance analysis of differential phase shift keying (DPSK) modulation schemes over Hoyt fading channels. Based upon the theory of DPSK modulation and a recently derived formula for the probability density function (PDF) of the differential phase between two Hoyt vectors contaminated by additive white Gaussian noise (AWGN), the bit error probability (BEP) for DPSK systems with noncoherent demodulation over Hoyt channels is analyzed. In the analysis, the correlation between adjacent bits is taken into account. The obtained theoretical results are fully validated first by reducing them to the corresponding known solutions for the Rayleigh fading distribution being a special case of the Hoyt distribution and second by comparing them with results obtained from computer simulations. The analysis of the BEP performance is illustrated by numerical examples given for the case of a mobile-to-mobile (M2M) Hoyt fading channel by considering various values of the fading channel characteristics and the system parameters. It is demonstrated that the Hoyt fading channel leads to poor BEP performance compared to the Rayleigh fading channel.
二进制DPSK调制方案在Hoyt衰落信道上的性能分析
本文对差分相移键控(DPSK)调制方案在Hoyt衰落信道上的性能进行了分析。基于DPSK调制理论和最近导出的受加性高斯白噪声(AWGN)污染的两个Hoyt矢量差相的概率密度函数(PDF)公式,分析了在Hoyt信道上进行非相干解调的DPSK系统的误码概率(BEP)。在分析中,考虑了相邻比特之间的相关性。首先将所得理论结果简化为作为Hoyt分布特例的Rayleigh衰落分布对应的已知解,然后与计算机模拟结果进行比较,充分验证了所得理论结果。以M2M (mobile-to-mobile) Hoyt衰落信道为例,考虑不同的衰落信道特性值和系统参数,对BEP性能进行了数值分析。结果表明,与瑞利衰落信道相比,霍伊特衰落信道的BEP性能较差。
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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