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Understand How The Mobile Phone Network
Mobile phones have become as commonplace as pocket radios. It is not where you want to go outside to find someone with the palm stored at the ear receiving or making a call.
Mobile services are very different from traditional telephony services in many ways. Here we try to see how the phones work and how calls are sent and received.
Types of Wireless Network
A wireless LAN (WLAN) is a wireless Local Area Network that links two or more computers or devices using spread-spectrum or OFDM modulation technology based to enable communication between devices in a limited area. This gives users the mobility to move around within a broad coverage area and still be connected to the network.
For the home user, wireless has become popular due to ease of installation, and location freedom with the gaining popularity of laptops. Public businesses such as coffee shops or malls have begun to offer wireless access to their customers; some are even provided as a free service. Large wireless network projects are being put up in many major cities: New York City, for instance, has begun a pilot program to cover all five boroughs of the city with wireless Internet access.