WebIn fiber-optic communications, wavelength-division multiplexing (WDM) is a technology which multiplexes a number of optical carrier signals onto a single optical fiber by using different wavelengths (i.e., colors) of laser light. This technique enables bidirectional communications over a single strand of fiber, also called wavelength-division duplexing, …

WebIn electronics, a multiplexer (or mux; spelled sometimes as multiplexor), also known as a data selector, is a device that selects between several analog or digital input signals and forwards the selected input to a single output line. The selection is directed by a separate set of digital inputs known as select lines. A multiplexer of inputs has select lines, which are …

WebL’OFDM (orthogonal frequency-division multiplexing) est un procédé de codage de signaux numériques par répartition en fréquences orthogonales sous forme de multiples sous-porteuses.Cette technique permet de lutter contre les canaux sélectifs en fréquence en permettant une égalisation de faible complexité. Ces canaux se manifestent notamment …

Web4G is the fourth generation of broadband cellular network technology, succeeding 3G and preceding 5G.A 4G system must provide capabilities defined by ITU in IMT Advanced.Potential and current applications include amended mobile web access, IP telephony, gaming services, high-definition mobile TV, video conferencing, and 3D …

WebIn computer networking, the transport layer is a conceptual division of methods in the layered architecture of protocols in the network stack in the Internet protocol suite and the OSI model.The protocols of this layer provide end-to-end communication services for applications.: §1.1.3 It provides services such as connection-oriented communication, …

WebIn the pursuit of knowledge, data (US: / ˈ d æ t ə /; UK: / ˈ d eɪ t ə /) is a collection of discrete values that convey information, describing quantity, quality, fact, statistics, other basic units of meaning, or simply sequences of symbols that may be further interpreted.A datum is an individual value in a collection of data. Data is usually organized into structures such as …

WebLTE stands for Long-Term Evolution and is a registered trademark owned by ETSI (European Telecommunications Standards Institute) for the wireless data communications technology and a development of the GSM/UMTS standards. However, other nations and companies do play an active role in the LTE project. The goal of LTE was to increase the …

WebTime-division multiplexing (TDM) is a method of transmitting and receiving independent signals over a common signal path by means of synchronized switches at each end of the transmission line so that each signal appears on the line only a fraction of time in an alternating pattern.This method transmits two or more digital signals or analog signals …

WebThe NTSC and PAL TV norms call for a compliant TV screen to display an electrically black and white signal (minimal color saturation) at a color temperature of 6500 K. On many consumer-grade televisions, there is a very noticeable deviation from this requirement. However, higher-end consumer-grade televisions can have their color temperatures …

WebA wireless network is a computer network that uses wireless data connections between network nodes.. Wireless networking is a method by which homes, telecommunications networks and business installations avoid the costly process of introducing cables into a building, or as a connection between various equipment locations. Admin …