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Abstract
In the wireless network, many physical conditions may arise where received signal power is shadowed by moving objects along the propagation paths, and further shadowing of the received signal may result from moving objects around the transmitters or receivers. This phenomenon is mathematically modelled in terms of the double (or dual) shadowing process brought about by fading channels where both dominant and scattered wave components fluctuate together. In this present study, the outcome aspects of dual-shadowed wireless fading channels are explored in accordance with outage analysis, channel capacity, and average bit error rate (ABER) for coherent as well as non-coherent modulation schemes. Here, the Rician envelope, which undergoes two shadowing effects, is assumed. The channel format described here is such that both dominant and scattered signals are impacted by the Nakagami m random variable (RV). As a model, the mathematical expressions are derived for channel capacity, outage analysis, and ABER for dual-shadowed Rician fading channels. The effects of different shadowing parameters are explored, and corresponding results are plotted. All the evaluative results are recognised by emulating the simulation results for various values of the fading parameters.
DISCLOSURE STATEMENT
No potential conflict of interest was reported by the author(s).
Additional information
Notes on contributors
Rajnish Kumar Ranjan
Rajnish Kumar Ranjan received his MTech degree in electronics and communication engineering from Punjabi University, Punjab, India, in 2019. He is currently pursuing PhD at the Department of Electronics and Communication Engineering, National Institute of Technology, Tripura, India. His research interests include wireless communication, channel modelling, 5G and 6G communication and signal processing. Corresponding author. Email: [email protected]
Atanu Chowdhury
Atanu Chowdhury received ME degree from Jadavpur University, India, and PhD degree from the National Institute of Technology Agartala, India. He is currently an assistant professor of electronics and communication engineering with National Institute of Technology, Agartala, India. His current research interests include control and instrumentation, communication and signal analysis, and device and material characterisation. Email: [email protected]
Dibyendu Ghoshal
Dibyendu Ghoshal received MTech degree in radiophysics and electronics from Calcutta University, India in 1986. He did his PhD (Tech) in radiophysics and electronics with a specialisation in microwave and millimeter-wave circuits, devices, and device-circuit interaction. Until August 2007, he worked as a postdoctoral research associate in various government organisations such as CSIR, SSPL (DRDO), and RCI Hyderabad (DRDO). He is currently an associate professor of electronics and communication engineering at the National Institute of Technology, Agartala, India. His current research interests include image processing, microwave and antenna engineering, optoelectronic devices and circuits, optical communication systems, semiconductor physics and devices, communication and control theories, computer animation, etc. He has published over 350 research papers in various reputed journals and conference proceedings. Email: [email protected]