Analysis of Binary PSK Modulations Over the Line-of-Sight Plus Scatter Fading Model
In this paper, the average bit error rate (ABER) performance of binary coherent and non-coherent modulation is investigated over a new fading channel which is well known as Beaulieu-Xie fading channel. This fading model consists of multiple no. of line-of-sight (LOS) components with some diffuse power. Specifically, the closed-form expressions are derived for the exact ABER of binary phase-shift keying (BPSK) and differential phase-shift keying (DPSK) by using the probability density function (PDF) approach. The final exact expression for BPSK is obtained in the form of infinite series which needs a reasonable number of terms to converge and the final expression for DPSK is expressed in terms of elementary functions. It is observed that ABER decreases with increase in specular power and/or with decrease in fading severity. The obtained results are applied to general scenarios for various values of fading parameters by adjusting the specular power and fading severity. The numerical results plotted by using the derived expressions show a close agreement with the results obtained by Monte Carlo simulation.
KeywordsAverage BER (ABER) Binary phase-shift keying (BPSK) Femtocells High-speed trains
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