Generalised asymptotic frame-work for double shadowed κ-μ fading with application to wireless communication and diversity reception

In this work, the asymptotic performance analysis over double shadowed κ - μ fading channel is presented. More specifically, the unified asymptotic tight performance bounds for maximum ratio combining , selection combining and equal gain combining diversity receptions is presented. The system performance in terms of the outage probability (OP), symbol error probability (SEP) (coherent/non-coherent), the average probability of detection, and the average area under the receiver operating characteristic curve (AUC) is studied. To gain more insights and to validate the asymptotic slope of the results, the coding gain and diversity gain for OP, SEP, probability of missed detection, and complementary AUC for all the diversity techniques are also presented. It is found that the asymptotic slope of all the performance parameters and diversity techniques depend only on the number of multipath clusters and the diversity order of the system. Further, simulation results are presented to demonstrate the effectiveness of the proposed methodology under various channel conditions in diverse field of applications, such as vehicle-to-vehicle communication, wearable communication, and wireless power transfer related technologies .