WIRELESS GIGABIT TECHNOLOGY

PYDAH COLLEGE OF
ENGINEERING AND TECHNOLOGY

PRESENTED BY:

SHASIKANTH U.HARIKRISHNAN NAIR
MCA III YEAR MCA III YEAR
PYDAH College of Engg & Tech PYDAH College of Engg & Tech

The Wireless Gigabit Alliance(also known as the WiGig)

Operates on unlicensed 60 GHz frequency band.

Allows wireless transfer of audio and video data at up to 7Gb per
second.

Transfer data within an indoor environment usually within a range of
10ms.

Two types of modulation and coding schemes

Orthogonal frequency-division multiplexing (OFDM)

supports communication over longer distances with greater delay spreads

providing more flexibility in handling obstacles and reflected signals.

OFDM allows the greatest transmission speeds of up to 7 Gbps.

Single carrier (SC)

Typically results in lower power consumption, so it is often a better fit for small, low-power
handheld devices.

SC supports transmission speeds up to 4.6 Gbps.

Enables use of previously unavailable wide band

60 GHz SPECTRUM ALLOCATION
Millimeter Wave Band

57 GHZ 66 GHZ

Europe : 57-66

USA and Canada : 57-64

Japan : 59-66

Australia : 59.4-62.9
7

Sync & Go Wireless IO

10-30sec
SD clip/movie

CE
<5m;
<1Gbps
Clips Peer2Peer

<1min
4GB Flash

Gigabit WLAN

60G
Wireless “HDMI” WiFi

 IEEE 802.11 ad
 State-of-the-art PHY/MAC standardization activities o improve WLAN data
rate to MGbps
 Dominated by Intel, Broadcom, NEC etc.
 WiGig (Wireless Gigabit Alliance)
 60-GHz Industry alliance led by Intel
 Promoters include Intel, Broadcom, NEC, Apple, Dell, Microsoft, Panasonic,
LGE, Toshiba, Wilocity, etc.
 IEEE 802.15.3c (First IEEE standard on 60 GHz WPAN)
 Promoted mainly by Japanese companies
 ECMA TC48
 European standardization for 60 GHz WPAN
 WirelessHD
9

o To overcome signal decay, WiGig uses
a process called adaptive
beamforming .

I. The antennas do this by adjusting both the amplitudes and the
phase shifts of their broadcasted waves.

II. The reception of the signal is optimized by minimizing different
kinds of problems: the error between the antenna's output and
the expected signal.

WIRED EQUIVALENT PRIVACY (WEP)

RC4
This algorithm is used for confidentiality

WEP
CRC-32
Wired equivalent privacy

This is used for integrity

64 bit standard WEP key

40 bit key 24 bit initial vector

RC4 traffic key

A 128-bit WEP key is almost always entered by users as a string of 26
hexadecimal characters. Each character represents four bits of the key.

 WEP is a protocol that adds security to wireless local area networks.

 WEP gives wireless networks the equivalent level of privacy protection as
a comparable wired network.

 WEP offers interoperability, since all wireless devices support basic WEP
encryption.

 Another advantage of WEP is that when uses happen to see your
network during wireless detection, they will mostly likely be discouraged
since it will require a key. This makes users that they are not welcome.
Hence network is secure.

Key size is one of the security limitations in Wired Equivalent Privacy.

Cracking a longer key requires interception of more packets, but
there are active attacks that simulate the necessary traffic.

The other weaknesses in Wired Equivalent Privacy include the
possibility of IV collisions and altered packets that are not helped at all
by a longer key.

Most users usually do not change their keys. This gives hackers
more time to crack the encryption.

Master keys, instead of temporary keys, are directly used.

A security protocol used in the IEEE 802.11 wireless networking standard.

TKIP was designed by the IEEE 802.11i task group and the Wi-Fi Alliance.

 To replace WEP without requiring the replacement of legacy hardware.

This was necessary because the breaking of WEP had left Wi-Fi networks
without viable link-layer security, and a solution was required for already deployed
hardware.

Key size-128bits

Beck-Tews attack

Ohigashi-Morii attack

FMS attack

KoreK attack

PTW attack

The Chopchop attack

WiFi Protected Access (WPA) and WiFi Protected Access II (WPA2)

 WiFi Protected Access (WPA) is a security standard for users of computers
equipped with WiFi wireless connection.

 WiFi Protected Access (WPA) protocol implements the majority of the IEEE
802.11i standard.

TKIP encryption replaces WEP’s 40-bit or 128-bit encryption key that must be
manually entered on wireless access points and devices and does not change.

WEP with 64bit or 128bit encryption strength - a simple encryption that offers limited
security and is relatively easy to break

WPA-PSK (WPA-Pre Shared Key) - in the forms of WPA-TKIP which offers better security
and is backwards compatible with older routers and USB keys, and WPA2-AES which offers
the best security and performance but less compatibility

Since the problem with WEP AND WPA-TKIP.

WIGIG MAKE USE OF WPA2-AES(ADVANCED ENCRYPTION STANDARD)

Since only AES is not compatible with older devices thus a completely new devices should be
made for this technology.

A D VA N TA G E S O F W i G i g
Small in size.

Portable.

High speed of data transfer.

Low power consumption.

Cost-effective.

APPLICATIONS OF WiGig

In wireless LAN networks.

Inter-vehicle
communication system.

Huge data file transfer.

Office appliances.

Video information transfer.

FUTURE OF WIGIG

NO WIRE WORLD:
Leave messy wires in your work places.
And enter in to

FAST AND FURIOUS WORLD
A DIGITALIZED LIFE.

Designed to work in high-density area

Wirelessly connect all devices to your
tablet
(wireless Docking)

Download the 25Gb blu-ray disc movie in
a minute.

Wireless display

“ NECCESITY IS THE MOTHER OF INVENTION”

For security related topic:
Wikipedia
www.electronicbus.com
Peter Smulders, “Exploiting the 60 GHz Band for Local Wireless
htttp://www.pcpress.comand Future Communications,” IEEE
“Special Issue on Gigabit WirelessDirections,” IEEE Comm.
htttp://www.wikipedia.com
White paper final Prospects
Multimedia Access: press release by wigig alliance
JSAC, October 2009
Magazine, January 2002

WIRELESS GIGABIT TECHNOLOGY

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