Airlogic ABM-400 Manual de usuario descargar pdf (Pagina 39)

- 39 -

wireless data to all other compatible wireless devices as well as to a single (usually) connected

LAN device, in most cases an ethernet hub or switch, allowing wireless devices to communicate

with any other device on the LAN.

WiMax Wireless Technology

According to the article Internet Unleashed, in late 2007, Sprint/Nextel will roll out mobile

WiMax service (a high speed wireless technology) in test markets, with the goal of serving as

many as 100 million people in 2008. The "4G" service, which will coexist with the current 3G

cellular network. It will provide 2-megabits-per-second to 4-mbps downstream speed, with 500

kilobits per second to 1-mbps upstream. WiMAX (World Interoperability for Microwave

Access, Inc.), based on the IEEE 802.16 standard, is expected to enable true broadband speeds

over wireless networks at a cost point to enable mass market adoption. WiMAX is the only

wireless standard today that has the ability to deliver true broadband speeds and help make the

vision of pervasive connectivity a reality.

There are two main applications of WiMAX today: fixed WiMAX applications are point-to-

multipoint enabling broadband access to homes and businesses, whereas mobile WiMAX offers

the full mobility of cellular networks at true broadband speeds. Both fixed and mobile

applications of WiMAX are engineered to help deliver ubiquitous, high-throughput broadband

wireless services at a low cost. Mobile WiMAX is based on OFDMA (Orthogonal Frequency

Division Multiple Access) technology which has inherent advantages in throughput, latency,

spectral efficiency, and advanced antennae support; ultimately enabling it to provide higher

performance than today's wide area wireless technologies. Furthermore, many next generation

4G wireless technologies may evolve towards OFDMA networks as an ideal for delivering cost-

effective wireless data services.

1 2 ... 34 35 36 37 38 39 40 41 42 43 44 ... 147 148

Sin comentarios

Airlogic ABM-400 Manual de usuario Pagina 39