Authors - Kamala L, Mohan K G Abstract - This paper presents the error performance of digital commu nication systems operating over α-Beaulieu-Xie (α-BX) and its extreme variant, the α-BXe fading channel. A generalized noise model, additive white generalized Gaussian noise (AWGGN), is adopted to account for various practical scenarios including impulsive and Laplacian environ ments. We derive closed-form average bit error rate (ABER) expressions utilizing the Fox-H function. The mathematical expressions derived are validated through numerical integration for binary phase shift keying (BPSK) and binary frequency shift keying (BFSK) modulation schemes. Our results demonstrate the degradation caused by Laplacian noise and characterize the irreducible error floors inherent in the α-BXe model, providing a robust tool for system designers in complex fading environ ments.
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