Simulation Techniques of Digital Twin in Real-Time Applications

2Comprehensive Analysis of Error Rate and Channel Capacity of Fisher Snedecor Composite Fading Model

Hari Shankar^* and Yogesh

Department of Computer Science and Engineering, Chitkara University Institute of Engineering and Technology, Chitkara University, Rajpura, Punjab, India

Abstract

Signal characterization is very important in different propagation environments such as urban and suburban, and it may become distorted due to variations in time domain and shadowing effects through the surrounding objects. Fisher Snedecor fading is an accurate and simple model for next-generation wireless communication technology, more specifically for device to device (D2D) communication. In this paper, the expressions of the average bit error rate (ABER) for binary and multilevel signaling are derived. We also derive the approximate, tightly bound, and asymptotic error rate expressions for some signaling schemes. Thereafter, the capacity expressions using different adaptive transmission techniques are derived. We also compute the capacity expression for both low and high signal-to-noise ratio (SNR) values. Furthermore, to cross-verify the computed expressions, simulation technique is used.

Keywords: Average bit error rate, multipath fading, shadowing, signal-to-noise ratio, channel capacity

2.1 Introduction

In a wireless system, fading is defined as the variation, which is random in nature, in the received signal that occurs due to the combined effect of time and frequency variations. It ...