Thursday, January 24, 2008

WIRELESS USB

Wireless USB Brings Greater Convenience and Mobility to Devices


Imagine if all the devices in a home office -- such as printer, scanner, external hard drive, and digital camera -- could be connected to your PC without any wires. Imagine if all the components for an entire home entertainment center could be set up and connected without a single wire. Imagine if digital pictures could be transferred to a photo print kiosk for instant printing without the need for a cable. These are just some of the possible scenarios for high-speed wireless USB (WUSB) connectivity, the latest technology developed to bring even greater convenience and mobility to devices.




Wireless USB is short-range,high-bandwidth wireless radio communication protocol.




WUSB specifications will be based on ultra wideband (UWB) radio efforts by the MultiBand OFDM Alliance (MBOA) and WiMedia Alliance, both open industry associations that promote personal-area range wireless connectivity and interoperability among multimedia devices in a networked environment.

In this topology, the host initiates all the data traffic among the devices connected to it, allotting time slots and data bandwidth to each device connected. These relationships are referred to as clusters. The connections are point-to-point and directed between the WUSB host and WUSB device.

The WUSB host can logically connect to a maximum of 127 WUSB devices, considered an informal WUSB cluster. WUSB clusters coexist within an overlapping spatial environment with minimum interference, thus allowing a number of other WUSB clusters to be present within the same radio cell.




USAGE:




Wireless USB is used in game controllers, printers, scanners, digital cameras, MP3 players, hard disks and flash drives. It is also suitable for transferring parallel video streams.




Wireless USBSpecification Rev. 1.0



Freq. band3.1 GHz,10.6 GHz



transfer speed 480 Mbit/s (3 m),110 Mbit/s (10 m)



Modulation MB-OFDM.




No comments: