"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 technology and methods of transmitting information without the use of physical connections, including topics such as antennas, propagation, and cellular systems.
Radio frequency (RF) spectrum: Understanding the frequency bands allocated for wireless communications and the regulations surrounding their use.
Modulation techniques: Methods used to represent digital data over a wireless signal, such as amplitude modulation (AM), frequency modulation (FM), and phase shift keying (PSK).
Wireless networking protocols: Standards for exchanging data between wireless devices, such as Wi-Fi and Bluetooth.
Antenna design and propagation: The principles of antenna design and how wireless signals propagate through different environments.
Cellular communication systems: The architecture and operation of cellular networks, including 2G, 3G, 4G, and 5G technologies.
Wireless security: Methods for securing wireless communications to protect against unauthorized access and hacking attempts.
Spectrum analysis: Techniques for analyzing and visualizing wireless signals to identify issues and optimize performance.
Interference mitigation: Strategies for minimizing interference from other wireless devices and sources.
Multipath fading: Understanding how wireless signals can be distorted by obstacles and reflections, and techniques for mitigating this effect.
Wireless power transmission: The principles and technologies used to transmit power wirelessly for charging devices and powering sensors.
WiFi: A wireless networking technology enabled by radio waves that provides high-speed internet connectivity to devices within a certain range.
Bluetooth: A technology that enables short-range wireless communication between two or more devices, usually within a range of 10 meters.
NFC (Near Field Communication): A technology that enables wireless data transfer between devices that are close to each other, usually within a range of a few centimeters.
ZigBee: A wireless communication technology commonly used in smart homes and buildings for controlling and monitoring devices.
RFID (Radio Frequency Identification): A technology that uses radio waves to identify and track objects, people, or animals.
Cellular Networks: A widely used wireless communication technology that provides voice and data services to mobile devices. The technology uses radio waves to send and receive information over a network of base stations.
Satellite Communication: A wireless communication technology that relies on satellites to transmit and receive information. It is used for providing internet connectivity to remote areas, broadcasting television and radio signals, and in military applications.
Infrared Data Association (IrDA): A communication protocol that uses infrared light waves to transfer data between devices that are within a line of sight of each other.
LiFi: A wireless communication technology that uses visible light waves to transmit data between devices.
5G: The fifth generation of mobile networks, providing faster data transfer speeds and improved network capabilities.
"The most common wireless technologies use radio waves."
"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."
"It was initially used from about 1890 for the first radio transmitting and receiving technology, as in wireless telegraphy, until the new word 'radio' replaced it around 1920."
"The term wireless was revived in the 1980s and 1990s mainly to distinguish digital devices that communicate without wires from those that require wires or cables."
"The advent of technologies such as mobile broadband, Wi-Fi, and Bluetooth."
"Wireless operations permit services, such as mobile and interplanetary communications, that are impossible or impractical to implement with the use of wires."
"Information is transferred in this manner over both short and long distances."
"Portable applications, including two-way radios, cellular telephones, personal digital assistants (PDAs), and wireless networking."
"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."
"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."
"Radio sets in the UK and the English-speaking world that were not portable continued to be referred to as wireless sets into the 1960s."
"Wireless devices, such as Bluetooth headsets, Wi-Fi-enabled laptops, and cellular phones, have become ubiquitous."
"The term is commonly used in the telecommunications industry to refer to telecommunications systems (e.g. radio transmitters and receivers, remote controls, etc.) that use some form of energy (e.g. radio waves and acoustic energy) to transfer information without the use of wires."
"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."
"The term wireless has been used twice in communications history, with slightly different meanings."
"The advent of technologies such as mobile broadband, Wi-Fi, and Bluetooth."
"Yes, two-way radios, cellular telephones, personal digital assistants (PDAs), and wireless networking are examples of applications of wireless technology."
"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."
"This became its primary usage in the 2000s, due to the advent of technologies such as mobile broadband, Wi-Fi, and Bluetooth."