The term wireless networking refers to technology that enables two or more computers to communicate using standard network protocols, but without network cabling. The spread of wireless internet also know as Wi-Fi has changed the format way to go online, letting them hit into high-speed Internet connections effortlessly at home and in many public places. Wireless telecommunication networks are usually implemented and administrated through transmission medium known as radio waves taking place at physical level of a network structure. Specification and available properties vary according to the type of customers. Different types of wireless internet are wireless PAN, VAN, MAN, WAN and their usability is defined according to the environment and user’s requirement.
Wireless internet allows personal connections and continues to develop. It provides access to customers without the need for underground copper, fiber, or other forms of commercial network cabling. Introduced in the mid 1990s, satellite became the first ordinary consumer wireless Internet service. Satellite access initially worked only in one direction, for downloading information. Subscribers needed to install a standard dialup modem and use a telephone line in conjunction with the satellite to make a functional system. Newer forms of satellite service remove this limitation and support full two-way connectivity. However, satellite also offers relatively low performing wireless internet. Satellite suffers from high latency connections due to the long distance signals must travel between Earth and the orbiting stations. Some municipalities have built their public wireless internet service using Wi-Fi technology. These so-called mesh networks join several wireless access points together to span larger urban areas. Individual Wi-Fi hotspots also provide public wireless Internet service in select locations. Wi-Fi hotspot is a wireless access point that provides Internet access to network devices in public locations such as downtown centers, cafes, airports and hotels. Companies and schools are increasingly using Wi-Fi hotspots for their internal internet networks. Home wireless networks also use similar Wi-Fi technology.
Wi-Fi is a low-cost option to connect to internet world relative to other forms of wireless internet service. Equipment is inexpensive. Many new computers, laptops and notebooks have built in hardware for wireless internet access. Wi-Fi hotspots remain free in some locales. Availability can be a problem, however. You won't find public Wi-Fi access in most suburban and rural areas. Wireless networking can prove to be very useful in public places – libraries, guest houses, hotels, cafeterias, and schools are all places where one might find wireless access to the Internet. From a financial point of view, this is beneficial to both the provider and the client. The provider would offer the service for a charge – probably on a pay per use system, and the client would be able to take advantage of this service in a convenient location; away from the office or home. A drawback of wireless Internet is that the QoS (Quality of Service) is not guaranteed and if there is any interference with the link then the connection may be dropped.