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WiGig
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WiGig, alternatively known as 60 GHz Wi-Fi,[1] refers to a set of 60 GHz wireless network protocols.[2] It includes the current IEEE 802.11ad standard and also the IEEE 802.11ay standard.[3]
The WiGig specification allows devices to communicate without wires at multi-gigabit speeds. It enables high-performance wireless data, display and audio applications that supplement the capabilities of previous wireless LAN devices. WiGig tri-band-enabled devices, which operate in the 2.4, 5 and 60 GHz bands, deliver data transfer rates up to 7 Gbit/s (for 11ad), about as fast as an 8-band 802.11ac transmission, and more than eleven times faster than the highest 802.11n rate, while maintaining compatibility with existing Wi-Fi devices. The 60 GHz millimeter wave signal cannot typically penetrate walls but can propagate by reflection from walls, ceilings, floors and objects using beamforming built into the WiGig system.[4] When roaming away from 60 GHz coverage, the protocol can switch to make use of the other, lower bands, both of which can propagate through walls, with a much lower data rate where the higher rates are not needed.[5][6]
802.11ay has a transmission rate of 20 to 40 Gbit/s and an extended transmission distance of 300 to 500 meters.[7] 802.11ay should not be confused with the similarly named 802.11ax that was released in 2019. The 802.11ay standard is designed to run at much higher frequencies. The lower frequency of 802.11ax enables it to penetrate walls, something that the 11ay standard struggles to do.[8] The name WiGig comes from Wireless Gigabit Alliance, the original association being formed to promote the adoption of IEEE 802.11ad. However, it is now certified by Wi-Fi Alliance.[9]
History
[edit]- In May 2009, formation of Wireless Gigabit Alliance was announced to promote the IEEE 802.11ad protocol.[10][11][12][13][14][15]
- In December 2009, the completed version 1.0 WiGig specification was announced.[16][17][18][19][20]
- In May 2010, WiGig Alliance 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.[21][22]
- In June 2011, WiGig announced the release of its certification-ready version 1.1 specification.[21]
- In December 2012, the IEEE Standards Association published IEEE 802.11ad-2012 as an amendment to the overall IEEE 802.11 standard family.[23]
- In 2016, Wi-Fi Alliance launched certification program for WiGig products.[24]
- The second generation WiGig standard, IEEE 802.11ay, was published on July 28, 2021. [25]
Specification
[edit]The WiGig MAC and PHY Specification, version 1.1 includes the following capabilities:[26][27]
- Supports data transmission rates up to 7 Gbit/s – just over eleven 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 per second 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 up to 10 meters. The beams can move within the coverage area through modification of the transmission phase of individual antenna elements, which is called phased array antenna beamforming.
- Widely used advanced security and power management for WiGig devices
Applications
[edit]On November 3, 2010, WiGig Alliance announced the WiGig version 1.0 A/V and I/O protocol adaptation layer (PAL) specifications.[21] 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) was available to members in 2011.[28]
- 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
Competition
[edit]WiGig competes with other 60 GHz frequency band transmission standards like WirelessHD in some applications.
Channels
[edit]| Channel 2.16 GHz |
Frequency (GHz) | Channel 4.32 GHz |
Channel 6.48 GHz |
Channel 8.64 GHz |
Channel 1.08 GHz |
Frequency (GHz) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Center | Min. | Max. | Center | Min. | Max. | ||||||||||||
| 1 | 58.32 | 57.24 | 59.40 | 9 | — | 17 | — | — | 25 | — | — | — | 33 | 57.78 | 57.24 | 58.32 | |
| 2 | 60.48 | 59.40 | 61.56 | 10 | 18 | 26 | 34 | 58.86 | 58.32 | 59.40 | |||||||
| 3 | 62.64 | 61.56 | 63.72 | 11 | 19 | 27 | 35 | 59.94 | 59.40 | 60.48 | |||||||
| 4 | 64.80 | 63.72 | 65.88 | 12 | 20 | 28 | 36 | 61.02 | 60.48 | 61.56 | |||||||
| 5 | 66.96 | 65.88 | 68.04 | 13 | 21 | 29 | 37 | 62.10 | 61.56 | 62.64 | |||||||
| 6 | 69.12 | 68.04 | 70.20 | 14 | 22 | — | 38 | 63.18 | 62.64 | 63.72 | |||||||
| 7 | 71.28 | 70.20 | 72.36 | 15 | — | — | 39 | 64.26 | 63.72 | 64.80 | |||||||
| 8 | 73.44 | 72.36 | 74.52 | — | — | — | 40 | 65.34 | 64.80 | 65.88 | |||||||
Regional spectrum allocations vary by region limiting the available number of channels in some regions. As of October 2016 the US is the only region supporting all six channels, while other regions are considering to follow suit.[29]
Single-carrier and Control-PHY data rates
[edit]| MCS index |
Modulation type |
Coding rate |
Phy rate (Mbit/s) | Sensitivity power (dBm) |
Tx EVM (dB) |
|---|---|---|---|---|---|
| 0 (Control-PHY) | DSSS with 32 π⁄2-BPSK chips per bit | 1/2 | 27.5 | −78 | −6 |
| 1 | π⁄2-BPSK (with each bit repeated twice) | 1/2 | 385 | −68 | −6 |
| 2 | π⁄2-BPSK | 1/2 | 770 | −66 | −7 |
| 3 | 5/8 | 962.5 | −65 | −9 | |
| 4 | 3/4 | 1155 | −64 | −10 | |
| 5 | 13/16 | 1251.25 | −62 | −12 | |
| 6 | π⁄2-QPSK | 1/2 | 1540 | −63 | −11 |
| 7 | 5/8 | 1925 | −62 | −12 | |
| 8 | 3/4 | 2310 | −61 | −13 | |
| 9 | 13/16 | 2502.5 | −59 | −15 | |
| 10 | π⁄2-16-QAM | 1/2 | 3080 | −55 | −19 |
| 11 | 5/8 | 3850 | −54 | −20 | |
| 12 | 3/4 | 4620 | −53 | −21 |
The use of the OFDM mode is obsolete and removed in 802.11-2020.
| MCS index |
Modulation type |
Coding rate |
Phy rate (Mbit/s) |
Sensitivity (dBm) |
EVM (dB) |
|---|---|---|---|---|---|
| 13 | SQPSK | 1/2 | 693 | −66 | −7 |
| 14 | 5/8 | 866.25 | −64 | −9 | |
| 15 | QPSK | 1/2 | 1386 | −63 | −10 |
| 16 | 5/8 | 1732.5 | −62 | −11 | |
| 17 | 3/4 | 2079 | −60 | −13 | |
| 18 | 16-QAM | 1/2 | 2772 | −58 | −15 |
| 19 | 5/8 | 3465 | −56 | −17 | |
| 20 | 3/4 | 4158 | −54 | −19 | |
| 21 | 13/16 | 4504.5 | −53 | −20 | |
| 22 | 64-QAM | 5/8 | 5197.5 | −51 | −22 |
| 23 | 3/4 | 6237 | −49 | −24 | |
| 24 | 13/16 | 6756.75 | −47 | −26 |
Low-power single-carrier data rates
[edit]| MCS index |
Modulation type |
Coding rate |
Phy rate (Mbit/s) |
Sensitivity (dBm) |
EVM (dB) |
|---|---|---|---|---|---|
| 25 | π⁄2-BPSK | 13/28 | 626 | −64 | −7 |
| 26 | 13/21 | 834 | −60 | −9 | |
| 27 | 52/63 | 1112 | −57 | −10 | |
| 28 | π⁄2-QPSK | 13/28 | 1251 | −12 | |
| 29 | 13/21 | 1668 | −12 | ||
| 30 | 52/63 | 2224 | −13 | ||
| 31 | 13/14 | 2503 | −15 |
See also
[edit]- IEEE 802.11ad
- IEEE 802.11ay
- IEEE 802.11aj
- Gi-Fi
- Bluetooth
- IEEE 802.15
- Media Agnostic USB
- Ultra-wideband (UWB)
- Wireless HDMI:
- WiDi version 3.5 to 6.0 supports Miracast; discontinued
- Miracast (wireless display technology)
- WirelessHD
- Wireless Home Digital Interface (WHDI)
- Wireless USB
- Zigbee
- LTE-WLAN Aggregation
- Wi-Fi Direct
- mmWave/FR2
ip based:
- Chromecast (proprietary media broadcast over ip: Google Cast for audio or audiovisual playback)
- AirPlay (proprietary ip based)
- Digital Living Network Alliance (DLNA) (ip based)
port / cable standard for mobile equipment
- Mobile High-Definition Link – MHL
- SlimPort (Mobility DisplayPort), also known as MyDP
References
[edit]- ^ "IEEE 802.11ad 60GHz Microwave Wi-Fi".[dead link]
- ^ "Understanding 60 GHz Wireless Network Protocols".
- ^ "Wi-Fi Alliance rebrands 802.11ac as Wi-Fi 5, picks 802.11ax as Wi-Fi 6". 3 October 2018.
- ^ Smulders, Peter (August 18, 2009). "Statistical Characterization of 60-GHz Indoor Radio Channels [Invited Paper]". IEEE Transactions on Antennas and Propagation. 57 (12): 2820–2829. doi:10.1109/TAP.2009.2030524.
- ^ "Is 802.11ad the Ultimate Cable Replacement?". Broadband Technology Report (BTR).
- ^ "Millimeter Wave Propagation: Spectrum Management Implications" (PDF). FEDERAL COMMUNICATIONS COMMISSION OFFICE OF ENGINEERING AND TECHNOLOGY, Bulletin Number 70 July, 1997).
- ^ "IEEE 802.11ay / NG60 – Next Generation 60 GHz". www.elektronik-kompendium.de (in German). Retrieved 2021-04-24.
- ^ "802.11ay wireless technology: Next-gen 60GHz WiFi".
- ^ "What is WiGig". 5g.co.uk.
- ^ Nitsche, Thomas; Cordeiro, Carlos; Flores, Adriana; Knightly, Edward; Perahia, Eldad; Widmer, Joerg (December 11, 2014). "IEEE 802.11ad: directional 60 GHz communication for multi-Gigabit-per-second Wi-Fi [Invited Paper]". IEEE Communications Magazine. 52 (12): 132–141. doi:10.1109/MCOM.2014.6979964.
- ^ Higginbotham, Stacey (May 6, 2009). "WiGig Alliance to Push 6 Gbps Wireless in the Home". GigaOm. Archived from the original on May 9, 2009. Retrieved November 14, 2013.
- ^ 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. Archived from the original on 2011-12-13. Retrieved 2018-11-29.
- ^ a b c "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 (Press release).
- ^ IEEE Standard for Information technology – Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements-Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications Amendment 3: Enhancements for Very High Throughput in the 60 GHz Band. IEEE SA. December 24, 2012. doi:10.1109/IEEESTD.2012.6392842. ISBN 978-0-7381-8096-0.
- ^ "Wi-Fi Alliance makes WiGig official for 60 GHz multi-gigabit networking". www.cablinginstall.com. Archived from the original on 2020-10-20. Retrieved 2018-11-29.
- ^ "IEEE 802.11, The Working Group Setting the Standards for Wireless LANs". www.ieee802.org. Retrieved 2021-11-01.
- ^ "WiGig Alliance Announces Completion of its Multi-Gigabit Wireless Specification". BusinessWire. 10 December 2009. Archived from the original on February 6, 2010.
- ^ "WiGig Alliance Specifications Page". WiGig Alliance.
- ^ Robinson, Daniel (2011-06-28). "WiGig Alliance issues 1.1 update for next-generation wireless". V3.co.
- ^ Wi-Fi CERTIFIED WiGig™: Wi-Fi® expands to 60 GHz , Wi-Fi Alliance, October 2016 wp_Wi-Fi_CERTIFIED_WiGig_20161024.pdf
WiGig
View on GrokipediaOverview
Definition and Standards
WiGig, also known as Wireless Gigabit, encompasses a family of short-range wireless protocols designed to deliver multi-gigabit-per-second data rates using the unlicensed 60 GHz millimeter-wave spectrum. It is fundamentally specified by the IEEE 802.11ad amendment to the IEEE 802.11 standard for wireless local area networks (WLANs), which was officially published on December 28, 2012.[1] This standard enables high-throughput communications suitable for applications requiring rapid data transfer over distances typically limited to 10 meters or less, distinguishing it from conventional sub-6 GHz Wi-Fi technologies that prioritize broader coverage at lower speeds.[5] As a WLAN technology, WiGig focuses on providing robust, interference-resistant connectivity in dense environments, leveraging the abundant spectrum available at 60 GHz to achieve peak theoretical data rates up to 7 Gbps.[1] Unlike traditional Wi-Fi operating in the 2.4 GHz and 5 GHz bands, WiGig employs directional beamforming to overcome high path loss inherent to millimeter waves, ensuring reliable short-range performance without the congestion issues plaguing lower-frequency bands.[5] WiGig integrates seamlessly into the Wi-Fi ecosystem through certification programs offered by the Wi-Fi Alliance, which validate interoperability and compliance with IEEE 802.11ad for consumer and enterprise devices.[6] It also supports backward compatibility with legacy IEEE 802.11 devices in the 2.4 GHz and 5 GHz bands via multi-band operation, including mechanisms for session handover that allow devices to switch frequencies dynamically when 60 GHz links are obstructed.[1]Key Features
WiGig operates in the unlicensed 60 GHz millimeter-wave band, which provides abundant spectrum for high-throughput wireless communication while minimizing interference from other devices due to the band's underutilization. However, this frequency range experiences significant path loss and attenuation from materials like walls and furniture, limiting its effective propagation compared to lower-frequency Wi-Fi bands.[7][8] To counter these challenges, WiGig incorporates advanced beamforming and beam tracking techniques, enabling highly directional signal transmission that focuses energy toward the intended receiver. This directional communication extends the indoor range to approximately 10 meters, supporting reliable multi-gigabit data rates up to 7 Gbps in practical scenarios.[7][8] WiGig achieves low latency suitable for real-time applications that demand rapid response times. Additionally, its power efficiency is enhanced by the use of single-carrier modulation for control and lower-rate functions, which reduces complexity and energy consumption in battery-powered devices.[9][8] Despite these advantages, WiGig's performance is constrained by a strict line-of-sight requirement, as signals do not penetrate obstacles effectively, and susceptibility to oxygen absorption, which introduces additional attenuation over longer distances.[7][8]History and Development
Formation of WiGig Alliance
The Wireless Gigabit Alliance (WiGig Alliance) was formed in May 2009 by a consortium of prominent technology companies, including Intel, Samsung, and Panasonic, to accelerate the development and widespread adoption of 60 GHz wireless technology for high-speed, short-range communications.[10][11] This initiative addressed the need for a unified industry standard to enable multi-gigabit data rates, surpassing the capabilities of existing Wi-Fi technologies at the time.[12] The alliance focused on creating specifications that supported key use cases, including wireless docking for seamless device connectivity, audio-visual (AV) distribution for uncompressed high-definition streaming, and high-speed data transfer for applications like file sharing and backups.[13] A pivotal early achievement was the release of the WiGig 1.0 specification on December 10, 2009, which outlined the physical (PHY) and media access control (MAC) layers for 60 GHz operation, enabling data rates up to 7 Gbps while ensuring compatibility with existing Wi-Fi ecosystems.[14] This specification served as the foundation for subsequent industry efforts, including contributions to the IEEE 802.11ad standard. In early 2013, the WiGig Alliance announced plans to consolidate its operations with the Wi-Fi Alliance, transferring its intellectual property, specifications, and membership to streamline certification and market promotion.[15] The unification was finalized in March 2013, effectively dissolving the standalone WiGig Alliance while enabling the launch of the WiGig certification program later that year under the Wi-Fi Alliance's oversight to validate product interoperability.[16][17]Standardization Milestones
The IEEE 802.11ad task group was initiated in January 2009 to develop enhancements for very high throughput operation in the 60 GHz band.[18] This effort culminated in the ratification of the IEEE 802.11ad amendment on December 28, 2012, which was published as part of the IEEE 802.11-2012 standard and defined modifications to the physical layer (PHY) and medium access control (MAC) sublayer to support multi-gigabit wireless local area networks (WLANs) at 60 GHz.[1] Building on 802.11ad, the IEEE 802.11ay amendment was developed by a subsequent task group to enhance directional multi-gigabit performance, including support for channel bonding and aggregation of up to four 2.16 GHz channels for a total bandwidth of 8.64 GHz, enabling theoretical data rates up to 100 Gbps.[19] The 802.11ay standard was published on July 28, 2021, further extending the capabilities of 60 GHz Wi-Fi for applications requiring higher throughput and reliability.[20] In parallel with IEEE efforts, the Wi-Fi Alliance assumed responsibility for WiGig promotion following the merger of the Wireless Gigabit Alliance in March 2013, launching its WiGig Certified interoperability testing and certification program later that year to ensure multi-vendor compatibility for 802.11ad devices. As of 2025, the 802.11ad and 802.11ay specifications have been integrated into the broader IEEE 802.11-2024 revision, which consolidates prior amendments for a unified WLAN framework. Recent IEEE amendments, such as 802.11bf (WLAN sensing, published September 2025, including support for sensing applications in the 60 GHz band), and ongoing task groups, such as 802.11bn (ultra-high reliability), continue to explore enhancements specifically for 60 GHz operations to support emerging use cases like precise location tracking and industrial automation.[21][22]Technical Specifications
Frequency Bands and Channels
WiGig, standardized as IEEE 802.11ad, operates in the unlicensed millimeter-wave spectrum around 60 GHz, specifically the 57–71 GHz band, which is allocated for short-range, high-capacity wireless communications.[23] This band is globally unlicensed but subject to regional regulatory variations in frequency range and power limits to accommodate local spectrum policies.[24] In the United States, the available spectrum spans 57.05–71.00 GHz, enabling the use of up to six channels.[25] Europe permits operations from 57.00–66.00 GHz, supporting four channels, while Japan allocates 57.00–66.00 GHz, also limited to four channels.[25] These allocations ensure compatibility with international standards while addressing interference concerns in dense environments.[26] The 60 GHz band is divided into discrete channels, each with a nominal bandwidth of 2.16 GHz, to facilitate efficient spectrum utilization and minimize adjacent-channel interference.[23] IEEE 802.11ad defines four primary channels, with centers at 58.32 GHz, 60.48 GHz, 62.64 GHz, and 64.80 GHz, though additional channels (5 and 6) are available in regions like the US with broader allocations.[24] The channel boundaries are precisely defined as follows:| Channel | Start Frequency (GHz) | Center Frequency (GHz) | End Frequency (GHz) |
|---|---|---|---|
| 1 | 57.24 | 58.32 | 59.40 |
| 2 | 59.40 | 60.48 | 61.56 |
| 3 | 61.56 | 62.64 | 63.72 |
| 4 | 63.72 | 64.80 | 65.88 |
PHY Layer Modes
The IEEE 802.11ad standard, underlying WiGig technology, specifies multiple physical layer (PHY) modes to support diverse operational requirements in the 60 GHz band, including robustness, throughput, and power efficiency. These modes include the Single Carrier (SC) PHY, Orthogonal Frequency-Division Multiplexing (OFDM) PHY, Low-Power SC PHY, and Control PHY, each optimized for specific scenarios such as short-range communication, high-data-rate transmission in multipath environments, battery-constrained devices, and initial network discovery.[23][31] The Single Carrier (SC) PHY is designed for robust, low-complexity transmission in short-range applications, employing simple modulation schemes such as π/2-BPSK and π/2-QPSK to mitigate phase noise and ensure reliable performance over line-of-sight links. It supports beamforming through dedicated training fields, enabling directional antennas to extend range and overcome path loss at 60 GHz. This mode prioritizes power efficiency and is mandatory for devices aiming for basic connectivity, with optional higher-order modulation like 16-QAM for increased rates in favorable conditions.[32][33][34] In contrast, the OFDM PHY targets higher throughput in environments with multipath propagation, utilizing a 512-point FFT to divide the 2.16 GHz channel into subcarriers including 336 data subcarriers and 16 pilot subcarriers for channel estimation. Modulation options range from SQPSK to 64-QAM, allowing adaptation to varying signal-to-noise ratios while employing low-density parity-check (LDPC) coding for error correction. Although more complex and power-intensive than SC, this optional mode excels in scenarios requiring multi-gigabit speeds, such as uncompressed video streaming.[23][31][34] The Low-Power SC PHY extends the SC mode for battery-operated devices, restricting modulation to π/2-BPSK and π/2-QPSK to reduce computational demands and energy consumption, while incorporating Reed-Solomon encoding and block interleaving for enhanced reliability. This optional variant sacrifices some peak performance for extended operation in portable applications like wireless docking or sensors, maintaining compatibility with beamforming features.[32][23] The Control PHY serves as a robust subset of the SC PHY, primarily for device discovery, association, and beamforming training in low signal-to-noise ratio conditions before higher-rate modes are engaged. It employs differential π/2-BPSK modulation with LDPC coding at a 1/2 rate and supports data rates up to 27.5 Mbps in its base configuration, with optional repetition enabling lower rates down to approximately 1.5 Mbps for extended reach during initial link establishment. This mandatory mode ensures interoperability across all WiGig devices by providing a fallback for control signaling.[32][35][23]Data Rates and Performance
WiGig, based on the IEEE 802.11ad standard, supports multiple physical layer (PHY) modes with varying maximum data rates to balance throughput, robustness, and power efficiency. The Single Carrier (SC) PHY mode achieves peak rates up to 4.62 Gbps using π/2-16QAM modulation and a 3/4 coding rate over a 2.16 GHz channel bandwidth.[36] The Orthogonal Frequency-Division Multiplexing (OFDM) PHY mode provides higher peak performance, reaching up to 6.76 Gbps with 64-QAM modulation and a 13/16 coding rate, leveraging its multi-carrier structure for improved spectral efficiency.[8] In contrast, the Control PHY mode is designed for low-overhead signaling and supports rates up to 27.5 Mbps using π/2-BPSK modulation and a 1/2 coding rate.[36] The SC PHY data rate can be calculated as , where represents the number of coded bits per symbol, is the coding rate (ranging from 1/2 to 5/8 for lower robustness or up to 3/4 for higher efficiency), and accounts for protocol overhead such as preambles and headers.[31] This formula highlights how modulation order and error correction influence achievable throughput, with higher values enabling multi-gigabit speeds in short-range scenarios. Enhancements in the IEEE 802.11ay amendment significantly boost WiGig performance through channel bonding (up to 8.64 GHz bandwidth), multiple-input multiple-output (MIMO) with up to 8 spatial streams, and advanced aggregation techniques, yielding theoretical peak rates of up to 176 Gbps.[37] In practical deployments, however, real-world throughputs typically range from 10 to 20 Gbps due to implementation constraints and environmental factors.[38] Key performance factors include beamforming, which provides directional antenna gains of up to 10 dB to mitigate 60 GHz path loss and enable reliable links, alongside spatial reuse for concurrent transmissions in multi-user environments.[39] These gains are offset by rapid signal attenuation, limiting effective ranges to under 10 meters in typical indoor settings without line-of-sight.[40] For low-power applications such as IoT devices, the Low-Power SC (LPSC) mode supports rates up to 2.5 Gbps, prioritizing energy efficiency over maximum throughput.[41]| PHY Mode | Maximum Data Rate | Key Enablers |
|---|---|---|
| SC PHY | 4.62 Gbps | π/2-16QAM, 3/4 coding |
| OFDM PHY | 6.76 Gbps | 64-QAM, 13/16 coding |
| Control PHY | 27.5 Mbps | π/2-BPSK, 1/2 coding |
| LPSC Mode | 2.50 Gbps | π/2-QPSK, 13/14 coding |
