The Wireless Gigabit Alliance[1] (WiGig) is an organization promoting the adoption of multi-gigabit speed wireless communications technology operating over the unlicensed 60 GHz frequency band.
The creation of WiGig (IEEE 802.11 ad) was announced on May 7, 2009.[2][3][4][5][6] The completed version 1.0 WiGig specification was announced in December 2009.[7][8][9][10][11] In May 2010, WiGig announced the publication of its specification, the opening of its Adopter Program, and the liaison agreement with the Wi-Fi Alliance to cooperate on the expansion of Wi-Fi technologies.[12][13] In June 2011, WiGig announced the release of its certification-ready version 1.1 specification.[12]
The WiGig specification will allow devices to communicate without wires at multi-gigabit speeds. It enables high performance wireless data, display and audio applications that supplement the capabilities of today’s wireless LAN devices. WiGig tri-band enabled devices, which operate in the 2.4, 5 and 60 GHz bands, will deliver data transfer rates up to 7 Gbit/s, about as fast as an 8 antenna 802.11ac transmission, and nearly 50 times faster than the highest 802.11n rate, while maintaining compatibility with existing Wi-Fi devices. However, the promised 7 Gbit/s rate makes use of the 60 GHz band which cannot go through walls; it is a line-of-sight technology. When roaming away from the main room the protocol will switch to make use of the other lower bands at a much lower rate, but which propagate through walls. [14]
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Members [edit]
Among the companies that comprise the board of directors are:
- AMD
- Broadcom Corporation
- Cisco Systems, Inc.
- Dell Inc.
- Huawei Technologies
- Intel Corporation
- Marvell International LTD.
- MediaTek Inc.
- Microsoft Corporation
- NEC Corporation
- Nokia Corporation
- NVIDIA Corporation
- Panasonic Corporation
- Qualcomm Atheros
- Samsung Electronics Co.
- Toshiba Corporation
- Wilocity
The following companies are Contributor members:
- Aeroflex
- Agilent Technologies
- Allegro DVT
- Beam Networks
- CSR
- Future Technology Devices International
- Harman International
- Hittite
- Institute for Infocomm Research
- MET Labs
- Nitero
- NXP
- Peraso Technologies, Inc.[15]
- Rohde & Schwarz
- Samsung Electro-Mechanics
- SK Telecom
- SRTC
- STMicroelectronics
- Tensorcom, Inc.
- Texas Instruments
- TMC
- UL CCS
- ZTE Corporation
Specification [edit]
The WiGig MAC and PHY Specification, Version 1.1 is specification-ready and includes the following capabilities:[12][16]
- Supports data transmission rates up to 7 Gbit/s – more than ten times faster than the highest 802.11n rate
- Supplements and extends the 802.11 Media Access Control (MAC) layer and is backward compatible with the IEEE 802.11 standard
- Physical layer enables low power and high performance WiGig devices, guaranteeing interoperability and communication at gigabit rates
- Protocol adaptation layers are being developed to support specific system interfaces including data buses for PC peripherals and display interfaces for HDTVs, monitors and projectors
- Support for beamforming, enabling robust communication at distances beyond 10 meters. The beams can move within the coverage area through modification of the transmission phase of individual antenna elements, which is called phase array antenna beamforming.
- Widely used advanced security and power management for WiGig devices
Application Specifications [edit]
On November 3, 2010, WiGig Alliance announced the feature complete WiGig version 1.0 A/V and I/O protocol adaptation layer (PAL) specifications.[12] The application specifications have been developed to support specific system interfaces including extensions for PC peripherals and display interfaces for HDTVs, monitors and projectors.
WiGig Display Extension
- Supports wireless transmission of audio/visual data
- Enables wireless DisplayPort and other display interfaces that include the High-bandwidth Digital Content Protection 2.0 feature.
- Offers key A/V applications, such as the transmission of lightly compressed or uncompressed video from a computer or digital camera to an HDTV, monitor or projector
WiGig Bus Extension and WiGig Serial Extension. The WiGig Bus Extension (WBE) is now available to members.[17]
- Define high-performance wireless implementations of widely used computer interfaces over 60 GHz
- Enable multi-gigabit wireless connectivity between any two devices, such as connection to storage and other high-speed peripherals
Liaisons [edit]
On May 10, 2010, the Wi-Fi Alliance and WiGig Alliance announced a cooperation agreement for multi-gigabit wireless networking. The Wi-Fi Alliance and the WiGig Alliance will share technology specifications for the development of a next-generation Wi-Fi Alliance certification program supporting Wi-Fi operation in the 60 GHz frequency band.[18][19][20]
On November 3, 2010, the WiGig Alliance and the Video Electronics Standards Association (VESA) announced a liaison to define the next generation standard wireless display technology. VESA and WiGig Alliance have agreed to share technology specifications to develop multi-gigabit wireless DisplayPort capabilities and create a certification program for wireless DisplayPort products.[21]
On June 28, 2011, the WiGig Alliance announced becoming an Adopter of HDMI Licensing, LLC to further provide WiGig Display Extension (WDE) support for HDMI mapping. WDE is the only 60 GHz specification that defines a framework to connect to DisplayPort monitors and HDMI TVs, enabling applications such as the wireless transmission of compressed or uncompressed video.[12][22]
Competition [edit]
WiGig competes with WirelessHD in some applications. WirelessHD transmits in the same 60 GHz band used by WiGig.
See also [edit]
References [edit]
- ^ "Wireless Gigabit Alliance Web Page".
- ^ Higginbotham, Stacey (2009-05-06). "WiGig Alliance to Push 6 Gbps Wireless in the Home". GigaOm.
- ^ Takahash, Dean (2009-05-06). "WiGig Alliance seeks to bring super-fast wireless video transfer to homes". VentureBeat.
- ^ "WiGig Unites 60 GHz Wireless Development". Wi-Fi Net News.
- ^ Higgins, Tim (2009-05-08). "Why WiGig?". Small Net Builder.
- ^ Reardon, Marguerite (2009-05-07). "Tech giants back superfast WiGig standard". CNET.
- ^ Murph, Darren (2009-12-10). "WiGig Alliance completes multi-gigabit 60 GHz wireless specification: let the streaming begin". Engadget.
- ^ Merritt, Rick (2009-12-10). "WiGig group gives first peak at 60 Ghz spec". EE Times.
- ^ Hachman, Mark (2009-12-10). "WiGig Alliance Finalizes Spec, Tri-Band Wi-Fi in 2010?". PC Mag.
- ^ Takahashi, Dean (2009-12-10). "WiGig Alliance creates next-generation wireless networking standard". Venture Beat.
- ^ Lawson, Stephen (2009-12-10). "WiGig Fast Wireless Group Finishes Standard". PC Mag.
- ^ a b c d e "WiGig Alliance Announces Completion of its Multi-Gigabit Wireless Specification". Businesswire.
- ^ "Wi-Fi Alliance and WiGig Alliance to Cooperate on Expansion of Wi-Fi Technologies". PR Newswire.
- ^ "Is 802.11ad the Ultimate Cable Replacement?". Broadband Technology Report (BTR).
- ^ Peraso Technologies, Inc.
- ^ "WiGig Alliance Specifications Page". WiGig Alliance.
- ^ Robinson, Daniel (2011-06-28). "WiGig Alliance issues 1.1 update for next-generation wireless". V3.co.
- ^ Ngo, Dong (2010-05-11). "Wi-Fi Alliance to develop speedy 60GHz band". CNET.
- ^ Murph, Darren (2010-05-11). "Wi-Fi Alliance and WiGig sync up for 60GHz WiFi". Engadget.
- ^ Kelly, Gordon (2010-05-11). "WiGig Deals Bring Multi-Gigabit WiFi Ever Closer". TrustedReviews.
- ^ "WiGig Alliance and VESA to Collaborate on Next Generation Wireless DisplayPort". 2010-11-03.
- ^ Shankland, Stephen (2011-06-28). "60GHz tech promises wireless docking, USB, HDMI". CNET.
External links [edit]
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