2021 IEEE Thesaurus Version 1.0 Created by The Institute of Electrical and Electronics Engineers (IEEE) 2021 IEEE Thesaurus The IEEE Thesaurus is a controlled The IEEE Thesaurus also provides a vocabulary of almost 10,900 descriptive conceptual map through the use of engineering, technical and scientific terms, semantic relationships such as broader as well as IEEE-specific society terms terms (BT), narrower terms (NT), 'used for' [referred to as “descriptors” or “preferred relationships (USE/UF), and related terms terms”] .* Each descriptor included in the (RT). These semantic relationships identify thesaurus represents a single concept or theoretical connections between terms. unit of thought. The descriptors are Italic text denotes Non-preferred terms. considered the preferred terms for use in Bold text is used for preferred headings. describing IEEE content. The scope of descriptors is based on the material presented in IEEE journals, conference Abbreviations used in the Thesaurus: papers, standards, and/or IEEE organizational material. A controlled BT - Broader term vocabulary is a specific terminology used in NT - Narrower term a consistent and controlled fashion that RT - Related term results in better information searching and USE- Use preferred term retrieval. UF - Used for Thesaurus construction is based on the ANSI/NISO Z39.19-2005(2010) standard, Guidelines for the Construction, Format, and Management of Monolingual Controlled Vocabulary. The Thesaurus vocabulary uses American-based spellings with cross references to British variant spellings. The scope and structure of the IEEE Thesaurus reflects the engineering and scientific disciplines that comprise the Societies, Councils, and Communities of the IEEE in *Refer to ANSI/NISO NISO Z39.19-2005 addition to the technologies IEEE serves. (R2010) Sections 5 through 8 for detailed information on controlled vocabularies, IEEE has developed its controlled display formats, usage and spelling, and vocabulary through consultation with subject selection criteria for descriptors matter experts (specialists in a particular ( http://www.niso.org/kst/reports/standards ). field) and specialists in information analysis. The IEEE Thesaurus thus provides a controlled vocabulary of subject headings to help people categorize or search for engineering and computing concepts, especially IEEE published content. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0). Created by The Institute of Electrical and Electronics Engineers (IEEE) for the benefit of humanity. Page 2 2021 IEEE Thesaurus 1/f noise 3D integrated circuits UF: 1f USE: Three-dimensional Pink noise integrated circuits BT: Noise 3D modeling 1f USE: Three-dimensional displays USE: 1/f noise 3D modelling 2-D displays USE: Three-dimensional displays USE: Two dimensional displays 3D printing 2-d hole gas USE: Three-dimensional printing USE: Two dimensional hole gas 3D reconstruction 2-D photonic crystals USE: Three-dimensional displays USE: Photonic crystals 3G 21CN USE: 3G mobile communication USE: Next generation networking 3G mobile communication 21st century networks UF: 3G USE: Next generation networking 3rd generation mobile communication 2D displays IMT-2000 USE: Two dimensional displays Third generation mobile communication 2d hole gas UMTS USE: Two dimensional hole gas Universal mobile telecommunication service 2D photonic crystals BT: Cellular technology USE: Photonic crystals Mobile communication RT: 4G mobile communication 3-D displays Ambient networks USE: Three-dimensional displays Cellular radio MIMO communication 3-D modeling Multiaccess communication USE: Three-dimensional displays Next generation networking OFDM 3-D modelling Radio access networks USE: Three-dimensional displays Spread spectrum communication 3-D reconstruction Telecommunication USE: Three-dimensional displays computing Time division synchronous 3D accelerators code division multiple access USE: Hardware acceleration 3G partnership project 3D audio USE: 3GPP BT: Audio systems Augmented reality 3GPP RT: Virtual reality UF: 3G partnership project 3rd generation partnership 3D displays project USE: Three-dimensional displays BT: Standards organizations RT: New Radio This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0). Created by The Institute of Electrical and Electronics Engineers (IEEE) for the benefit of humanity. Page 3 2021 IEEE Thesaurus Ultra-dense networks 3GPP Standards NT: Enhanced mobile BT: Standards publications broadband NT: Long Term Evolution New Radio 3rd generation mobile communication 5th generation mobile systems USE: 3G mobile communication USE: 5G mobile communication 3rd generation partnership project 5th generation systems USE: 3GPP USE: 5G mobile communication 4G mobile communication 5th generation wireless systems UF: 4th generation mobile USE: 5G mobile communication communication BT: Cellular technology 6G mobile communication Mobile communication BT: Mobile communication RT: 3G mobile communication RT: 5G mobile communication 5G mobile communication Cellular radio Cellular radio Enhanced mobile 802.11 broadband USE: IEEE 802.11 Standard Long Term Evolution Next generation networking 802.11ax Radio access networks USE: IEEE 802.11ax Standard Spread spectrum communication 802.11e Telecommunication USE: IEEE 802.11e Standard computing Time division synchronous 802.11g code division multiple access USE: IEEE 802.11g Standard 4K UHD 802.11n USE: UHDTV USE: IEEE 802.11n Standard 4th generation mobile communication 802.15 USE: 4G mobile communication USE: IEEE 802.15 Standard 5G 802.16 USE: 5G mobile communication USE: IEEE 802.16 Standard 5G mobile communication 802.3 UF: 5G USE: IEEE 802.3 Standard 5th generation mobile systems 8K UHD 5th generation systems USE: UHDTV 5th generation wireless systems 9/11 BT: Cellular technology USE: Terrorism Mobile communication RT: 4G mobile communication 9/11 attack 6G mobile communication USE: Terrorism Cellular radio Land mobile radio 911 attack Next generation networking USE: Terrorism Tactile Internet This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0). Created by The Institute of Electrical and Electronics Engineers (IEEE) for the benefit of humanity. Page 4 2021 IEEE Thesaurus A/D RT: AC-AC converters USE: Analog-digital conversion Pulse width modulation Sensorless control A/D conversion Windings USE: Analog-digital conversion NT: AC motors Induction machines A/D converter Synchronous machines USE: Analog-digital conversion AC motors AAL UF: Alternating current motors USE: Ambient assisted living BT: AC machines Motors ABC algorithms RT: Pulse width modulation USE: Artificial bee colony Pulse width modulation algorithm inverters Space vector pulse width Abdomen modulation BT: Body regions NT: Hysteresis motors Induction motors Abrasive water jet cutting USE: Water jet cutting AC-AC converters UF: AC-AC convertors Abrasives AC-AC power conversion BT: Production materials BT: Converters Power conversion Absorption RT: AC machines BT: Materials science and technology AC-AC convertors RT: Semiconductor detectors USE: AC-AC converters Abstract algebra AC-AC power conversion BT: Algebra USE: AC-AC converters NT: Galois fields Modules (abstract algebra) AC-DC power converters UF: AC-DC power convertors Abstracts AC/DC power converters BT: Writing Analog-to-digital converter RT: Information retrieval Analog-to-digital convertor Information services BT: Power conversion RT: Machine vector control AC generators Pulse width modulation UF: Alternating current inverters generators Voltage multipliers BT: Generators Voltage-source converters RT: Pulse width modulation NT: Rectifying circuits NT: Induction generators Synchronous generators AC-DC power convertors USE: AC-DC power converters AC llght emitting diode lamps USE: LED lamps AC-LED lamps USE: LED lamps AC machines UF: Alternating current AC/DC power converters machines USE: AC-DC power converters BT: Electric machines This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0). Created by The Institute of Electrical and Electronics Engineers (IEEE) for the benefit of humanity. Page 5 2021 IEEE Thesaurus Accelerated aging Password BT: Aging Materials testing Access point base station USE: Femtocell networks Accelerated computing USE: Hardware acceleration Access protocols BT: Protocols Accelerated testing RT: CAPTCHAs USE: Life estimation NT: Media Access Protocol Acceleration Access rights BT: Mechanical factors USE: Permission RT: Accelerometers Gravity Accident prevention BT: Industry applications Acceleration measurement RT: Explosion protection USE: Accelerometers Preventive maintenance Risk analysis Accelerator architectures Safety devices BT: Computer architecture NT: Accidents Accelerator beams Accidents USE: Particle beams BT: Accident prevention RT: Domestic safety Accelerator magnets Electric shock BT: Magnetic devices Emergency services Particle accelerators Explosions Fires Accelerometers Hazardous areas UF: Acceleration measurement Occupational health BT: Measurement Occupational safety RT: Acceleration Oil pollution Fall detection Product safety Risk analysis Access charges NT: Aerospace accidents BT: Economics Electrical accidents Multiaccess communication Industrial accidents Marine accidents Access control