A personal communications service (PCS) is set of communications capabilities that provide a combination of terminal mobility, personal mobility, and service profile management. This class of services comprises several types of wireless voice or wireless data communications systems, typically incorporating digital technology, providing services similar to advanced cellular mobile or paging services. In addition, PCS can also be used to provide other wireless communications services, including services that allow people to place and receive communications while away from their home or office, as well as wireless communications to homes, office buildings and other fixed locations. Described in more commercial terms, PCS is a generation of wireless cellular-phone technology, that combines a range of features and services surpassing those available in analogue- and first-generation (2G) digital-cellular phone systems, providing a user with an all-in-one wireless phone, paging, messaging, and data service.
A wireless network is a computer network that uses wireless data connections between network nodes.
Free-space optical communication (FSO) is an optical communication technology that uses light propagating in free space to wirelessly transmit data for telecommunications or computer networking. "Free space" means air, outer space, vacuum, or something similar. This contrasts with using solids such as optical fiber cable.
Ultra-wideband is a radio technology that can use a very low energy level for short-range, high-bandwidth communications over a large portion of the radio spectrum. UWB has traditional applications in non-cooperative radar imaging. Most recent applications target sensor data collection, precise locating, and tracking. UWB support started to appear in high-end smartphones c. 2019.
Wireless communication is the transfer of information (telecommunication) between two or more points without the use of an electrical conductor, optical fiber or other continuous guided medium for the transfer. The most common wireless technologies use radio waves. With radio waves, intended distances can be short, such as a few meters for Bluetooth or as far as millions of kilometers for deep-space radio communications. It encompasses various types of fixed, mobile, and portable applications, including two-way radios, cellular telephones, personal digital assistants (PDAs), and wireless networking. Other examples of applications of radio wireless technology include GPS units, garage door openers, wireless computer mouse, keyboards and headsets, headphones, radio receivers, satellite television, broadcast television and cordless telephones. Somewhat less common methods of achieving wireless communications involve other electromagnetic phenomena, such as light and magnetic or electric fields, or the use of sound.
Extremely high frequency (EHF) is the International Telecommunication Union (ITU) designation for the band of radio frequencies in the electromagnetic spectrum from 30 to 300 gigahertz (GHz). It lies between the super high frequency band and the far infrared band, the lower part of which is the terahertz band. Radio waves in this band have wavelengths from ten to one millimetre, so it is also called the millimetre band and radiation in this band is called millimetre waves, sometimes abbreviated MMW or mmWave. Millimetre-length electromagnetic waves were first investigated by Indian physicist Jagadish Chandra Bose, who generated waves of frequency up to 60 GHz during experiments in 1894–1896.
A wireless ad hoc network (WANET) or mobile ad hoc network (MANET) is a decentralized type of wireless network. The network is ad hoc because it does not rely on a pre-existing infrastructure, such as routers or wireless access points. Instead, each node participates in routing by forwarding data for other nodes. The determination of which nodes forward data is made dynamically on the basis of network connectivity and the routing algorithm in use.
Kaveh Pahlavan, is a Professor of Electrical and Computer Engineering and Computer Science and the director of the Center for Wireless Information Network Studies (CWINS), Worcester Polytechnic Institute, Worcester, Massachusetts. Pahlavan is considered the father of Wi-Fi technology by his friends and colleagues, wireless indoor geolocation, and Body Area Networking. He started doing research on Wi-Fi when it was in its infancy.
The IEEE Communications Magazine is a monthly magazine published by the IEEE Communications Society dealing with all areas of communications including light-wave telecommunications, high-speed data communications, personal communications systems (PCS), ISDN, and more. It includes special features, technical articles, book reviews, conferences, short courses, standards, governmental regulations and legislation, new products, and Society news. The magazine is published as IEEE Communications Magazine since 1979, replacing the IEEE Communications Society Magazine (1977-1978) and the Communications Society (1973-1976). According to the Journal Citation Reports, the magazine has a 2013 impact factor of 4.460. It is abstracted and indexed in most of the major bibliographic databases. The current editor-in-chief is Tarek S. El-Bawab.
IEEE Wireless Communications is a bimonthly scientific journal published by the IEEE Communications Society. Papers highlight such topics as portable telephones, communicating palmtop computers, protocols, messaging, communications, and personalized traffic filtering. It also covers such policy issues as spectrum allocation, industry structure, and technology evolution.
An indoor positioning system (IPS) is a network of devices used to locate people or objects where GPS and other satellite technologies lack precision or fail entirely, such as inside multistory buildings, airports, alleys, parking garages, and underground locations.
Scientia Iranica is a peer-reviewed scientific journal published by Sharif University of Technology. It was established in 1991 and covers theoretical and experimental research in technical sciences and engineering. Starting in 2011, the journal is published open access. The editor-in-chief is Abolhassan Vafai.
Jesse Eugene Russell is an American inventor. He was trained as an electrical engineer at Tennessee State University and Stanford University, and worked in the field of wireless communication for over 20 years. He holds patents and continues to invent and innovate in the emerging area of next generation broadband wireless networks, technologies and services, often referred to as 4G. Russell was inducted into the US National Academy of Engineering for his contributions to the field of wireless communication. He pioneered the field of digital cellular communication in the 1980s through the use of high power linear amplification and low bit rate voice encoding technologies and received a patent in 1992 for his work in the area of digital cellular base station design.
John O'Sullivan is an Australian engineer.
Ekram Hossain is a professor in the Department of Electrical and Computer Engineering at University of Manitoba, Winnipeg, Manitoba, Canada. Hossain leads the Wireless Communications, Networks, and Services Research Group at University of Manitoba and is editor-in-chief for the IEEE Communications Surveys and Tutorials. In addition, Hossain has held visiting professorships at the School of Computer Engineering, Nanyang Technological University, Singapore, Tohoku University, Japan, and School of Computer Science and Engineering, The University of New South Wales, Australia.
Theodore (Ted) Scott Rappaport is an American electrical engineer and the David Lee/Ernst Weber Professor of Electrical and Computer Engineering at New York University Tandon School of Engineering and founding director of NYU WIRELESS.
Victor Bahl is an Indian Technical Fellow and CTO of Azure for Operators at Microsoft. He started networking research at Microsoft. He is known for his research contributions to white space radio data networks, radio signal-strength based indoor positioning systems, multi-radio wireless systems, wireless network virtualization, edge computing, and for bringing wireless links into the datacenter. He is also known for his leadership of the mobile computing community as the co-founder of the ACM Special Interest Group on Mobility of Systems, Users, Data, and Computing (SIGMOBILE). He is the founder of international conference on Mobile Systems, Applications, and Services Conference (MobiSys), and the founder of ACM Mobile Computing and Communications Review, a quarterly scientific journal that publishes peer-reviewed technical papers, opinion columns, and news stories related to wireless communications and mobility. Bahl has received important awards; delivered dozens of keynotes and plenary talks at conferences and workshops; delivered over six dozen distinguished seminars at universities; written over hundred papers with more than 65,000 citations and awarded over 100 US and international patents. He is a Fellow of the Association for Computing Machinery, IEEE, and American Association for the Advancement of Science.
RF CMOS is a metal–oxide–semiconductor (MOS) integrated circuit (IC) technology that integrates radio-frequency (RF), analog and digital electronics on a mixed-signal CMOS RF circuit chip. It is widely used in modern wireless telecommunications, such as cellular networks, Bluetooth, Wi-Fi, GPS receivers, broadcasting, vehicular communication systems, and the radio transceivers in all modern mobile phones and wireless networking devices. RF CMOS technology was pioneered by Pakistani engineer Asad Ali Abidi at UCLA during the late 1980s to early 1990s, and helped bring about the wireless revolution with the introduction of digital signal processing in wireless communications. The development and design of RF CMOS devices was enabled by van der Ziel's FET RF noise model, which was published in the early 1960s and remained largely forgotten until the 1990s.
