IMPROVING SIGNAL RELIABILITY IN WIRELESS COMMUNICATION SYSTEMS USING DIVERSITY TECHNIQUES

AUTHORCOSMAS KEMDIRIM AGUBOR  (PHD)

AFFILIATION: DEPARTMENT OF ELECTRICAL AND ELECTRONIC ENGINEERING, FEDERAL UNIVERSITY OF TECHNOLOGY, OWERRI.

Improving Signal Reliability in Wireless Communication Systems Using Diversity Techniques is a research work centered on the performance of wireless communication systems. The study deals with different antenna configurations and their ability in mitigating multipath propagation effects. Drive Test Analysis for data collection was used in which RF (radio frequency) measurements were taken from cell sites of two major Mobile Operators. Computer simulation using MATLab Toolbox version 7.0 was later used to carry out error performance simulation for the different transmitting and receiving antenna configurations in a Raleigh fading environment. The result obtained showed BER of  and  for Transmit and Receive diversity techniques respectively as against  for single-antenna 2G and 3G (second and third generation) systems. This poor result for the single antenna system confirms the KPI (key performance indicator) of Drop calls obtained in the Drive Test Report for the 2G and 3G systems. The low BER values indicate that diversity techniques allow improved BER performance over single antenna systems. The diversity modes employed by the multiple antennas were also analyzed by comparing their  (Energy per bit to noise power spectral density ratio) at Receiver BER Threshold of . It was observed that Transmit and Receive diversity techniques had 40% and 52% efficiency due to their  and  diversity gain respectively over single antenna. This is an advantage and a solution to Poor Coverage and Quality noticed as another KPI of the Drive Test Report.    TO VIEW THE FULL CONTENT OF THIS RESOURCE, PLEASE VISIT THE FUTO LIBRARY

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Aside | This entry was posted in School of Engineering and Engineering Technology SEET, School of Environmental Technology SOET, The Library and tagged , , , , , , . Bookmark the permalink.

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