CELLULAR TECHNOLOGIES

Cellular Technology is the use of wireless communication related with the mobile phone. Wireless communications and systems have most experienced exceptional improvement over the decades and essential of every one in the global world. The use of wireless devices such as cell phone, PDA’s and Laptops has become an essential today. Cellular Phone known as a mobile phone, hand phone, or a phone that can make and receive telephone calls over a radio link while roaming all over the world. The objective of this article is to supply an overview of the development of cellular phone, Network architecture and the challenges the faced