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WIRELESS UNIVERSAL SERIAL BUS

BY :

MAHADEVASWAMY

CET DSP M.TECH

04/10/2023 1

JAIN UNIVERSITY

CET DIGITAL SIGNAL PROCESSING

Outline:– INTRODUCTION

– REASONS FOR WIRELESS USB

– ARCHITECTURAL OVERVIEW

– POWER MANAGEMENT – SECURITY

– CONCLUSION

– REFERENCES

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INTRODUCTION :• Wireless USB is a wireless technology which

enables the high speed computer peripheral interface wireless.

• Wireless USB will be based on the Ultra-Wideband (UWB) & radio efforts by the WiMedia Alliance.

• Wireless USB interest group was formed in 2004.

• Wireless USB has an advanced power management system which consumes very low power.


Introduction Cont…

• UWB supports high bandwidth (480 Mbps) but only at limited

range (~3m).

• Applying this wireless technology to usb frees the user from

worrying about the cables; where to find them, where to plug

them in, how to string them so they don’t get tripped over,

how to arrange them so they don’t look like a mess.

• Wireless USB is used in game controllers, printers, scanners,

digital cameras, MP3 players, hard disks and flash drives.



Reasons For Wireless USB

– Wires are restrictive.– Multiple wires can be a hassle. – Wires slower than wireless solutions.

Inadequacy of current wireless solution

– Bluetooth.

Bandwidth of 3 Mbps not enough for higher demand applications (Video, HDTV, Monitor).

– Wi-Fi. Expensive. Too much power usage for mobile devices.


ARCHITECTURAL OVERVIEW

USB System Description. A USB system consists of a host and some number of devices all operating

together on the same time base and the same logical interconnect. A USB

system can be described by three definitional areas:

• USB interconnect

• USB devices

• USB host

USB interconnect:• Topology

• Data Flow Models

• USB Schedule04/10/2023 7CET DIGITAL SIGNAL PROCESSING

Hub and Spoke topology

Topology : Wireless USB connects USB devices with the USB host using a 'hub and spoke'

model.

The Wireless USB host is the 'hub' at the center, and each device sits at the end of a 'spoke‘.


Features of wireless USB technology: • High performance • Simple, low-cost implementation• An easy migration path• Frequency: 3.1 GHz to 10.6 GHz (cont.)

• Band Groups 1 & 2: Longer range apps• Bands Groups 3 & 4: Shorter range apps


POWER MANAGEMENT

The power target for WUSB radio will be introduced at less

than 300mW.

Device Power Management

Host Power Management


SECURITY:• Encryption Methods

The standard method of encryption for the first generation of Wireless USB is AES-128 Counter with CBC- Mac

Wireless USB also supports public key encryption, but only for authentication

The CCM encryption suite provides 128 bits of security for run-time operation.

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Data Payload +

Cipher StreamWUSB

Data Payload+

Cipher Stream

WUSB

128-bit Key 128-bit Key

Keyboard MCU Receiver MCU


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WUSB adapters:

Adapters

150M Wi-fi-lan 802.11N/G/B Wireless USB 2.0 CARD adapter

Iogear GWU523 802.11 b/g Wireless USB Adapter

ZONET ZEW1642S 802.11N Wireless PCI Adapter.

Premiertek HT-H10DN IEEE 802.11n (draft) - Wi-Fi Adapter USB - 300 Mbps


Wireless USB : Applications


CONCLUSION: • Wireless USB offers more band width.

• Its power management and security features will enable it to wipe out all the current wireless personal interconnect.

• Ease of installation and usage will makes Wireless USB the

most accepted Wireless technology by the consumers.


REFERENCES

• www.usb.org• www.google.co.in• www.wikipedia.org• www.intel.com• www.techonline.com


Questions …?

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Thank you


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