Error rate analysis and co-operative communication for ad-hoc and sensor network to combat Rician fading based on disaster healthcare

Abstract

Possessing dependable communications throughout large-scale disaster circumstances is of principal significance in today's world. Especially, propagation of vital information to the survivors and the rescue groups is an essential part of crisis communications. Given that the normal communication channels generally turn into non-functional in large-scale disasters, a provisional communication is required. Thus, relay networks are proper for such situations where forward stations can be suitably situated within the disaster district to increase the coverage of the stations and enhance communication dependability. Recently, the performance analysis of the wireless communication systems that deteriorated by fading, and noise has received great attention. We propose square quadrature amplitude modulation (S-QAM) for consumed power enhancement and Cooperative communication for Ad hoc and sensor networks (WASN) to combat Rician fading. The proposed modulation technique in co-operative communication situation is evaluated by an analytical approach and simulations. The performance analysis with different Rician k-factor and diversity order with Matlab simulation is done. We observe bit error rate gain performance, in which there is a considerable gain in performance accomplished by increasing diversity order L, while the gain in performance that achieved by the increase in k is extremely small without diversity order. We conclude that using of cooperating communication can enhance the Rician fading in disaster situation and helps to save human lives.