الفهرس 
Radio Frequency(RF)Only 14 pages are availabe for public view
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Abstract
The world has placed a high value on developing wireless communication systems, and demand for them has only grown.The first wireless com- munication technology was radio wave(RF),which has since evolved over several generations and gained popularity.However,there are drawbacks to radio wave technology,such as the need for licenses,high construction and maintenance costs,and high costs associated with mexpanding anet- work.Since then,the trend towards optical communications has started to address these issues and improve security to notify user sand lessen interference in sensitive systems.