INTRODUCTIONUSB stads for universal serial bus.Wireless usb is a high bandwidth.wireless radio communication protocol

created by the Wireless USB Promoter Group.A ultra-wideband (UWB) common radio

platform, which is capable of sending 480 Mbit/s at distances up to 3 metres (9.8 ft) and 110 Mbit/s at up to 10 metres (33 ft).

DEVLOPEMENTThe Wireless USB Promoter Group was

formed in February 2004 to define the Wireless USB protocol.

In May 2005, the Wireless USB Promoter Group announced version 1.0 of the Wireless USB specification.

In June 2006, five companies showed the first multi-vendor interoperability demonstration of Wireless USB

USESWireless USB is used in game controllers,

printers, scanners, digital cameras, portable media players, hard disk drives and flash drives.

COPATIBILITY OF OLDER HARDWAREThe WUSB architecture allows up to 127

devices to connect directly to a host. Because there are no wires or ports, there is no longer a need for hubs.

WUSB introduced a new Device Wire Adapter (DWA) class.

The HWA is a USB 2.0 device that attaches externally to a desktop or laptop's USB port or internally to a laptop's MiniCard interface.

COMPARISON BETWEEN WIRELESS USB,wifi,bluetooth

wifi bluetooth Wireless usbFrequency- 2.4,5,3.6 Ghz 2.4 Ghz 10.6GhzCost High low highBandwidth 6.93 Gbps 1 mbps 480mbpsDevlopment year 1991 1994 2006Primary device notebook,comp. Mobiles,laptop gamming, TV,Desktop computer, printer etc

Range 5GHZ 5-30meter 3-10 meter

CONCLUSIONWireless usb implementation will likely in form

discreate silicon and may include card ,dongle etc.

wireless USB (WUSB) will offer wideband platform.

The same functionality as standard wired USB devices but without the cabling.

Wireless USB Promoter Group prepares to develop the specifications for more connect devices.

USB help standardize the technology.

ADVANTAGESyou can connect wirelessly, you dont need to have a

network cable between the device and the network.you can connect fairly easily at home, work, mulit

offices.you can move around or work at any avaiable or

suitable location without having to be near a socket.

 you can take it out and use elsewhere.You are plugging/ unplugging it, security because

you know whether it's plugged in or not so you know no-one is accessing your machine.

DISADVANTAGEunless the security is properly setup both your

laptop and the network .it can get damaged, lost or stolen.reception is limited by distance and structures

between you and the antenna (radio waves don't always propagate in a linear fashion in building, they can get blocked by steel structure.

some older wireless networks can get very slow if there are lots of people int he same area all trying to use the network (effectively trying to use the same radio bandwidth).

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