Cellular Systems

Introduction

A cellular system is a wireless communication in which several cells are installed with low power radio aerials or antennas that are normally located at a particular geographical area and interconnected to a midpoint exchange. As a cell phone receiver moves from one place to another and its radio frequency, identity, and location is handed by the cell to another without interrupting a call. Cellular technology systems need to be set up efficiently since the number of people using cellular systems is increasing day in day out. Here are some of the basic units found in a cellular system.

Basic units of a cellular system

Mobile station
A mobile station is typically a wireless mobile device that contains a transceiver, control unit and an antenna system for voice and data transmission. For instance, in GCM networks the mobile unit will contain a sim card and mobile equipment.

Base station
This is a fixed station for mobile cellular systems and it’s used for mobile units and radio communications. It consists of transmitters, radio receivers and radio channels mounted on top of a tower.

Gateway
Gateway is another unit or component of the cellular system. It refers to communication links between wired and wireless systems or two wireless systems. Two logical elements found in the gateway is the interworking function and the mobile switching center. The mobile switching center connects the mobile stations and the cellular base stations to other mobile switching centers or public telephone networks.

Databases
Databases are another significant unit in cellular systems. They are used to keep track of important information such as caller location, billing and subscriber data. There are two major databases known as the visitor location register and the home location register. The VLR stores information temporarily about the subscriber visiting the coverage area of the mobile switching center.

The main reason for using cellular systems

The cellular systems have a high number of users, high capacity and excellent network speed. The majority of people are using cellular systems since they have an increased bandwidth which leads to the transfer of data at very high speeds. The fast, uninterrupted, superior internet connectivity, providing by business NBN, is an advantage to mobile users undertaking a video conference and or a chat. The cellular systems also cover a much larger coverage than other systems such as wifi. It is also safe, secure and private an as well as not being vulnerable to any internet security threats.

How does cellular data work?

Cellular data refers to a communication network linked by wireless systems. The network or data is distributed over cells each served by a fixed-location transceiver. The base station or unit provides the cell with network coverage used for data and voice transmission. A cell normally uses a distinct set of frequencies from the neighboring cells to provide each cell with guaranteed service quality and avoid interference. Cellular data utilizes the network provided from the cell towers for communication through phone calls and internet connectivity.

What is interference in the cellular system?

In wireless networks or cellular networks, interference refers to a disruptive signal that travels in a disruptive manner along a channel between its receiver and the source. They are also unwanted signals that cause disturbance in the cellular systems causing inconveniences in the network systems. Some various types of interference include multiple access interference, adjacent channel interference, and self-interference.

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