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Cisco Certification: Taking Your First Certification Exam
You've studied hard you've practiced your configurations you've used your flash cards over and over again and finally, the big day is here. Your first certification exam!
For many Cisco certification candidates, their first exam is the CCNA...
Five Reasons To Do Wireless Networking
I believe that wireless networks represent one of the most significant inventions in human history – almost as important as sliced bread.
Now, seriously, bread is certainly easy enough to cut yourself, but try to wire up a network and you will...
Networking Basics
A network is a group of computers, printers, and other devices that are connected together with cables. The sharing of data and resources. Information travels over the cables, allowing network users to exchange documents & data with each other,...
Selecting a Laptop
Small Can Be Beautiful
When purchasing a new computer, you may be better served by a laptop than a traditional desktop computer. Recently, laptops with capabilities similar to desktops can be purchased for a comparable price. Laptops are...
The Importance of Protecting Your PC from Viruses and Spam
Today the internet is a mine field of malicious code looking to harm your computer. Hackers want to have access to your PC for both fun and profit. You must be diligent in your ability to detect and then protect your important computer data. ...
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Understanding the operation of mobile phone networks
Mobile phones have become as commonplace as pocket radios. There is no where you will go without finding someone with the palm tucked close to the ear receiving or making a call.
Mobile services differ greatly from the traditional telephony service in many respects. Here, we try to look at how cellular phones phones operate and how calls are made and received.
The first thing you will have to understand about mobile technology is mobile phones are essentially radios. All communication – to an from the device – travel along radio lines and is bound by radio transmission rules we see in the old Motorola two way radio systems. The only difference is that cellular phones are able to apply computer concepts such as advanced networking and sophiscated programming into their functions and that is how we come by SMS text messages, conferencing, call waiting features and calendar systems.
The second concept is that of cells. There is no single block of network but rather a city may be divided into several cells and a call from one cellular device to the other keeps hoping along the cells till it gets to the destined number. The advantage of the cell system, is that it allows for frequency reuse, meaning several users can use the same small cell and permits the company to use the same frequency over and over again without locking resources to one phone call only. Typically, one cell covers about 26 square kilometers and each one has a base station which is just a tower and some radio equipment to
manage the signals.
Of late, cell phone technologies are laden with computer applications. SMS and WAP access are for example typical computer applications that have found their way into cellular functionality. SMS operates like the traditional email system and is controlled by a server just like we have a network server. WAP dwells more on computer programming and is also controlled by a WAP server. When you send a text message, it travels over the cellular network and is stored in a server and delivered to the recipient. The reason why it is purely a computer network facility and independent of the cellular service is that even whilst receiving calls SMS messages can come through.
WAP is purely an internet driven service integrated into cellular networks to enhance experience normally reserved for internet surfers. Examples of these facilities are downloads and information services like flight schedules and weather updates which are obtained from cellular operators via handsets.
As mobile users grow in sophiscation, so does the technology that drives the device. Each new day we shall see what we call convergence technology whereby other fields of communication shall be gradually fused into mobile operations to give customers enhanced experience.
About the author:
For more more information about mobile phone network please visit http://www.cell-phone-nation.com
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