Wi-Max

           Over the past decade, internet has grown rapidly and become extremely popular, especially when the world is entering the digital age. 

           You can access the internet through dial-up service (dial up), wi-fi and broadband (broad-band). Dial-up is outdated, is still popular but broad-band service charge is not cheap wi-fi is also limited in coverage. A new access protocol was established with the so-called WiMAX (Worldwide Interoperability for Mircrowave Access) deserves to replace all three methods. 

            A WiMAX system consists of base stations and receiving equipment (modem). The stations can connect to internet directly via broadband cable or using high-frequency radio waves (10GHz-65GHz) to communicate with each other. Coverage of approximately 8000 km2 each station (radius ~ 50 km) with access speed up to 70 Mbps, providing to the remote service high speed internet which are very cheap prices (due to charge line, including maintenance costs), the number of subscribers is much greater than the current service. With a mobile device (PDA, laptop, 3G Mobile Phone, ...) equipped with WiMAX equipment revenue, you can access the internet anywhere! To obtain high-frequency radio waves need huge antennas and power consumption should be communication between client devices and wave propagation using narrow frequency band (2GHz-11GHz).



        The trend of the future is wireless, wifi network (LAN - local area network), Bluetooth for personal area network (PAN - personal area network) while WiMAX is the perfect choice when the connection between the City (MAN - metropolitan area network). Access charges are of course cheaper, but is not free: D? The answer is possible. To attract businesses, economic development, the city will put the transfer station and broadcast in the key areas where the concentration of trade (not fair Where's home), obviously you will benefit since then is not it. However, companies can also install the station transceivers and WiMAX service providers with extremely low prices. With WiMAX, VOIP (Voice over internet protocol) will become more popular, not only voice heard but also seen with high-quality images, it can cause the phones of today become the fairy tales!