Wi-Fi - definition
Wi-Fi - definition
Wi-Fi (short for Wireless Fidelity) is a wireless data transmission technology, based on the IEEE 802.11 standard, that allows electronic devices to communicate over local computer networks (WLAN - Wireless Local Area Network) and access the Internet without the need for cables. The Wi-Fi system uses radio waves to transmit information in the ISM (Industrial, Scientific and Medical) band, usually in the 2.4 GHz and 5 GHz bands, and in newer versions also in the 6 GHz band.
From a network architecture point of view, Wi-Fi is based on a client-access-point model, in which end devices (e.g. laptops, smartphones, printers) connect to a router or access point (AP - Access Point), which manages network traffic and mediates data to the wired network or the internet. Encryption of transmissions is carried out by security protocols such as WPA2 or WPA3, which ensure the confidentiality and integrity of transmitted information.
The IEEE 802.11 standard includes many versions and extensions, differing in bandwidth, range and radio channel efficiency. The development of this technology has enabled transmission speeds of up to hundreds of megabits and, in the latest specifications, even several gigabits per second. An important aspect of Wi-Fi operation is the sharing of the transmission medium between multiple devices, which requires the use of collision and quality of service (QoS) management mechanisms.
Wi-Fi is now a widely used solution in homes, offices, public institutions, transport and industry. It has the advantage of mobility, configuration flexibility and the ability to rapidly deploy networks without the need to run cables. The technology also integrates with IoT (Internet of Things) systems, enabling smart devices to communicate and automate processes in home and industrial environments.
Transfer Multisort Elektronik (TME) is one of the world’s largest global distributors of electronic components, electrotechnical parts, workshop equipment, and industrial automation. The catalog includes over 1,500,000 products from 1,300 leading manufacturers. TME’s modern logistics centers in Łódź and Rzgów (Poland), with a combined area of over 40,000 m², ship nearly 6,000 packages daily to customers in more than 150 countries.
TME also invests in the development of knowledge and skills of young engineers and electronics enthusiasts through the TME Education project, and supports the tech community by organizing the TechMasterEvent series, promoting innovation and experience exchange.
