Effective rate analysis of two-wave with diffuse-power fading channels

In this study, the effective rate of two-wave with diffused power (TWDP) fading channel is investigated by considering multiple-input single-output systems under delay constraints. The effective rate is particularly focused because it can be used to perform channel-capacity analysis while considering the delay aspect. The classical fading models such as the Rayleigh and Rician models are special cases of a TWDP fading model. In the exact analysis of the effective rate, a new analytical expression is derived for TWDP fading channels. Moreover, the tractable closed-form effective-rate expressions are deduced for high and low signal-to-noise-ratio regimes in the asymptotic analysis. In addition, all these expressions are presented for a single transmitting antenna, i.e. N  = 1 (single-input single-output system). The numerical results demonstrate that the effective rate increases by increasing the number of transmitting antennas N and channel-fading parameter K . In contrast, the stringent delay constraints and equal strengths of the specular components cause a reduction in the effective rate.