Performance Analysis of Hybrid Combining Schemes under Middleton Class-A
and SαS Impulsive Noise Model
Abstract
Impulsive noise is a significant concern for Single Input Multiple
Output (SIMO) wireless communication systems. This paper evaluates the
effectiveness of hybrid combining techniques in mitigating the impact of
impulsive noise caused by both man-made and natural phenomena. The
Selection combining-Equal Gain Combining (SC-EGC) and Selection
Combining Maximal Ratio Combining (SC-MRC) hybrid techniques are
considered in the presence of three different noise models: Additive
White Gaussian Noise (AWGN), Middleton Class-A impulsive noise model,
and Symmetric Alpha Stable (SαS) impulsive noise model for the Rayleigh
and Rician fading channels. Bit Error Rate (BER) is used to assess
channel performance. The research contribution of this paper is the
comprehensive evaluation of hybrid combining techniques in a set of
noise models that can arise in wireless communication systems, including
both man-made and natural sources of impulsive noise. The findings
suggest that impulsive noise has a greater impact on channel performance
than AWGN noise, and hybrid combining techniques are more effective in
mitigating its effects. The results have significant research
significance and practical implications for SIMO wireless communication
systems, and can guide the development of more robust and reliable
communication systems in the presence of impulsive noise.