A Study on Path Loss and Shadowing for Wireless Communication Channels

Zachary Bosire Omariba, Dr. Nelson Bogomba Masese

Abstract


The demand for accelerated speed, anywhere, and any time connectivity has made wireless communication networks increasingly dense. This has resulted into intense research on how speed of data transfer, security of data, spectrum sharing, and storage of the big data realized can be improved in an efficient way. However the major challenge which has necessitated continuous research progress in the subject is the study of communication path loss and shadowing and how it can be eliminated or lessened to improve the channels involved. This paper will perform experiments on radio propagation models, ray tracing models and perform its simulations in Matlab, as well as provide a review of the various path loss models. The simulation results obtained indicated that when the receiver far away from the transmitter, the signal begins to be weaker and weaker until it is lost. However if the receiver will move away from a closer base station, and while the signal is weakening, it encounters another base station, the two base stations performs a handshake and the signal will start gaining strength.

Keywords


communication channels, Path loss and shadowing, radio-wave propagation, ray tracing

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