About WUSB
Certified Wireless USB (WUSB)
will deliver speeds up to 480Mbps at three meters (and up to 110Mbps at 10 meters). By broadcasting at low power over an extremely wide spectrum (3.1 to 10.6 GHz), Certified Wireless USB devices consume very little power and will coexist peacefully with other wireless technologies such as 802.11 and Bluetooth. WUSB is the result of moving Ultra-Wideband (UWB) technology to desktop systems or mobile eqipment and additionally high-speed secure and reliable connectivity between devices for distances as far as 10 meters.
Coming WUSB Applications- Digital Cameras |
Wireless USB Benefits- Secure wireless high speed communication |
Early Certified Wireless USB devices will attempt to replace the cable for existing USB devices using so-called Device Wire Adapters (DWA’s) By converting a PC’s USB port into a wireless USB hub, DWA’s will quickly extend wireless capability to a host of USB devices, such as printers and scanners, while opening up new applications such as wireless stereo speakers for the PC. For devices that traditionally connect to the PC in a ‘host-to-device configuration, Certified Wireless USB will enjoy a quick market adoption.
Wireless USB Host – Device Connectivity
Host Wire Adapters (HWA) |
|
| A HWA is a USB 2.0 device that add wireless host capability to existing PC´s and notebooks. Host Wire Adapters can be used externally to a desktop or laptop’s USB port or internally to a laptop with Mini-PCI-Card interface. |
Example HWA´s |
Device Wire Adapters (DWA) |
|
| A DWA allows existing USB 2.0 devices to be used wirelessly with a WUSB host. For the migration from wired USB to WUSB the USB-IF has introduced a new Device Wire Adapter (DWA) class. |
Example DWA´s |
Dual-Role Devices (DRD) |
|
| A DRD can switch between device function and host function with limited capabilities. For using with devices it can be a host or for using with host it can be a device. |
Example DRD´s |
Wireless USB Security
The security between devices is a mutual authentication in device and host connections so that devices will have the opportunity to validate the host and the host will have the opportunity to validate the device. It meens a device is associated and authenticated before operation of the device is permitted. Higher levels of security involving encryption will be implemented at the application level. Setup will be easy. Users will use a USB cable to connect the device the first time around or pressing a button on each device and comparing a visual indication on both devices to confirm the devices have found each other. So the PC and the device can associate with each other. The device and the PC share a “key” which prevents devices from being hijacked. But after that, there will be no need for the cable.This picture is free for public use. Please place backlink to www.wireless-usb.eu/wusb/
Certified Wireless USB has been designed for high-throughput, short–range communication and is not a networking technology. Certified Wireless USB continues the hub–and–spoke model used by wired USB in which a single host manages all data traffic–up to 127 devices.
Sample Picture Wireless USB Device Connections
Pictures are free for public use. Please place backlink to www.wireless-usb.eu/wusb/
Certified Wireless USB will continue to require the use of drivers installed on the PC or mobile equipment to properly manage connections between devices. But Wireless USB was designed to use the same drivers as USB 2.0 without modification.
The USB Implementers Forum, Inc. was formed to provide a support organization and forum for the advancement and adoption of WUSB technology. The USB-IF facilitates the development of high-quality compatible WUSB devices, through its logo and compliance program and promotes the benefits of WUSB and the quality of products that have passed compliance testing.
