• USB, short for Universal Serial Bus
• it is a standard plug-and-play type of connection for many kinds of devices.
• • USB is intended to replace many varieties of serial and parallel ports
• USB refers to the types of cables and connectors used to connect many types of
external devices to computers.
• setting up communication between a computer and peripheral devices.
• USB has become the standard connection method. USB was designed for personal
computers, as a power cord between a device and an adapter plugged into a wall plug for
• Wireless USB is a short-range, high-bandwidth wireless radio communication protocol
created by the wireless USB promoter group.
• Wireless USB is sometimes abbreviated as "WUSB", although the USB implementers forum
discourages this practice and instead prefers to call the technology "Certified Wireless
USB" to differentiate it from competitors.
• The basic transport mechanism for Wireless USB is the ultra-wide band (UWB) radio
platform. USES OF WUSB.
• Wireless USB will build on the success of Wired USB. An important goal of the
WUSB Promoter Group is to ensure that wireless USB offers users the
experience they have come to expect from wired USB. Toward that end, the
Wireless USB standard is being designed to support the following features:
Backward compatibility : -
• Wireless USB will be fully backward compatible with the one billion wired USB
connections already in operation. Checking whether a devolved software is
compatibility with older version of other software .
8. High performance:-
• At launch, Wireless USB will provide speeds up to 480 Mbps within 10 feet beyond will be 110
Mbps , a performance comparable to the wired USB 2.0 standard
• High enough to provide wireless transfer of rich digital multimedia formats. As UWB technology
and process technologies evolve, bandwidth may exceed 1 Gb per second.
Simple, Low Cost Implementation:-
• Implementation will follow the wired USB connectivity models as closely as possible to reduce
development time and preserve the low-cost, ease-of-use model that has made wired USB the
interconnect of choice.
Easy Migration Path : -
• To enable an easy migration path from wired USB, Wireless USB will maintain the same usage
models and architecture as wired USB.
9. • Compatibility Options For Older Hardware :-
• The 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.
• However, to facilitate the migration from wired to wireless, Sometimes referred to
as a "WUSB hub", allows existing USB 2.0 devices to be used wirelessly with a
• Alternatively, a much faster type is the USB 3.0—which transfers data up to
• WUSB host capability can be added to existing PCs through the use of a Host Wire
Adapter (HWA). 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 Mini Card interface.
10. Typical Home Applications
• PCs and peripherals
• External storage devices (HDDs)
• HDTV's and STB’s
• Game consoles
• Digital cameras
• Digital camcorders
• DVD players
• MP3 players
• CD players
• Wireless speakers
• You can connect wirelessly.
• It is the easy and secure from plugging it in / unplugging it
• You do not need to have a network cable between the device and the network.
• You can connect fairly easily at home, work, multiple offices (since there is no
cable to carry around or leave behind).
• You can move around or work at any available or suitable location without having
to be near a socket.
13. Wi-Fi Wireless USB Adapters
• Essential for a high-quality Internet
connection – WiFi adapters are designed to
offer the best connections available.
External Wi-Fi adapters commonly plug into
the USB port of a computer.
• These adapters are casually called "wireless
USB" although the protocol used for
signalling is Wi-Fi.
14. Unlike broadband and satellite USB
• modems, which require special SIM cards and dedicated service providers ,
Wireless USB adapters can connect computers to wireless networks without
additional tools or service expenses.
• For e.g. Network speeds are limited
accordingly; a USB adapter 802.11g handles a maximum of
15. Other Wireless USB Technologies
Various wireless USB adapters also exist supporting alternatives to Wi-Fi:
• IrDA infrared
• Other proprietary signalling technology
• Unless the security is not properly setup, both your laptop or desktop and the
network you are connecting to cannot be compromised and your data can be
accessed and read by others.
• The hardware is small, it can get damaged, lost or stolen.
• Reception is limited by distance and concrete and natural structures between
you and the antenna (radio waves don't always propagate in a linear fashion in
building, they get blocked by steel or concrete structures).
• Some older wireless networks can get very slow if there are lots of people in
the same area, all trying to use the network (effectively trying to use the same
17. SECURITY & DEVICE ASSOCIATION
• WUSB security will ensure the same level of security as wired USB.
• One of the primary objectives when implementing a wireless interconnect is
that it is easy to install and use.
• Higher levels of security involving encryption should be implemented at the