Performance analysis of electromagnetic nano‐communication with interference over dual selection combining diversity technique

Abstract A novel frequency regime of the spectrum from 0.1 to 10 THz enables an emerging paradigm of modern wireless communication referred as 6G communication networks. However, to assure the success of 6G communication networks, ever‐growing development and deployment of nano‐machines, leading to ultra‐dense nano‐network, is witnessed. Nevertheless, the potential feature analysis of such ultra‐dense nano‐network in the presence of interference limited scenarios, by virtue of ultra‐dense deployment of nano‐machines, under the performance improvement techniques is missing from the reported literatures. Therefore, in this article, several performance metrics for an ultra‐dense nano‐network under the selection combining (SC) diversity technique is presented. The analytical expressions for error rates of different modulation schemes such as BPSK/BFSK, DPSK/ NFSK, Q‐PSK and M‐QAM under SC diversity technique for the considered nano‐network in the presence of interference limited ecosystems are presented. In addition, analytical expressions of capacity under constant power with optimal rate adaptation (C ora ) and capacity under channel inversion with fixed rate (C cifr ) are explored. It is worthy to mention that the proposed analytical expressions are generic in nature for the considered scenarios, in which severity and shaping parameters in both the multipath fading and shadowing are included. Numerically simulated results support mathematical formulation.