Modem and Orthogonal frequency-division multiplexing

Shortcuts: Differences, Similarities, Jaccard Similarity Coefficient, References.

Difference between Modem and Orthogonal frequency-division multiplexing

Modem vs. Orthogonal frequency-division multiplexing

A modem (modulator–demodulator) is a network hardware device that modulates one or more carrier wave signals to encode digital information for transmission and demodulates signals to decode the transmitted information. In telecommunications, orthogonal frequency-division multiplexing (OFDM) is a method of encoding digital data on multiple carrier frequencies.

Analog-to-digital converter

In electronics, an analog-to-digital converter (ADC, A/D, or A-to-D) is a system that converts an analog signal, such as a sound picked up by a microphone or light entering a digital camera, into a digital signal.

Analog-to-digital converter and Modem · Analog-to-digital converter and Orthogonal frequency-division multiplexing · See more »

Asymmetric digital subscriber line

Asymmetric digital subscriber line (ADSL) is a type of digital subscriber line (DSL) technology, a data communications technology that enables faster data transmission over copper telephone lines than a conventional voiceband modem can provide.

Asymmetric digital subscriber line and Modem · Asymmetric digital subscriber line and Orthogonal frequency-division multiplexing · See more »

Baseband

Baseband is a signal that has a very narrow and near-zero frequency range, i.e. a spectral magnitude that is nonzero only for frequencies in the vicinity of the origin (termed f.

Baseband and Modem · Baseband and Orthogonal frequency-division multiplexing · See more »

Bell Labs

Nokia Bell Labs (formerly named AT&T Bell Laboratories, Bell Telephone Laboratories and Bell Labs) is an American research and scientific development company, owned by Finnish company Nokia.

Bell Labs and Modem · Bell Labs and Orthogonal frequency-division multiplexing · See more »

Carrier frequency

In telecommunication systems, Carrier frequency is a technical term used to indicate.

Carrier frequency and Modem · Carrier frequency and Orthogonal frequency-division multiplexing · See more »

Carrier wave

In telecommunications, a carrier wave, carrier signal, or just carrier, is a waveform (usually sinusoidal) that is modulated (modified) with an input signal for the purpose of conveying information.

Carrier wave and Modem · Carrier wave and Orthogonal frequency-division multiplexing · See more »

Convolutional code

In telecommunication, a convolutional code is a type of error-correcting code that generates parity symbols via the sliding application of a boolean polynomial function to a data stream.

Convolutional code and Modem · Convolutional code and Orthogonal frequency-division multiplexing · See more »

Data-rate units

In telecommunications, data-transfer rate is the average number of bits (bitrate), characters or symbols (baudrate), or data blocks per unit time passing through a communication link in a data-transmission system.

Data-rate units and Modem · Data-rate units and Orthogonal frequency-division multiplexing · See more »

Digital-to-analog converter

In electronics, a digital-to-analog converter (DAC, D/A, D2A, or D-to-A) is a system that converts a digital signal into an analog signal.

Digital-to-analog converter and Modem · Digital-to-analog converter and Orthogonal frequency-division multiplexing · See more »

Evolution-Data Optimized

Evolution-Data Optimized (EV-DO, EVDO, etc.) is a telecommunications standard for the wireless transmission of data through radio signals, typically for broadband Internet access.

Evolution-Data Optimized and Modem · Evolution-Data Optimized and Orthogonal frequency-division multiplexing · See more »

Forward error correction

In telecommunication, information theory, and coding theory, forward error correction (FEC) or channel coding is a technique used for controlling errors in data transmission over unreliable or noisy communication channels.

Forward error correction and Modem · Forward error correction and Orthogonal frequency-division multiplexing · See more »

Frequency-division multiple access

Frequency division multiple access (FDMA) is a channel access method used in multiple-access protocols as a channelization protocol.

Frequency-division multiple access and Modem · Frequency-division multiple access and Orthogonal frequency-division multiplexing · See more »

G.hn

G.hn is a specification for home networking with data rates up to 2 Gbit/s and operation over four types of legacy wires: telephone wiring, coaxial cables, power lines and plastic optical fiber.

G.hn and Modem · G.hn and Orthogonal frequency-division multiplexing · See more »

GSM

GSM (Global System for Mobile communications) is a standard developed by the European Telecommunications Standards Institute (ETSI) to describe the protocols for second-generation digital cellular networks used by mobile devices such as tablets, first deployed in Finland in December 1991.

GSM and Modem · GSM and Orthogonal frequency-division multiplexing · See more »

Hertz

The hertz (symbol: Hz) is the derived unit of frequency in the International System of Units (SI) and is defined as one cycle per second.

Hertz and Modem · Hertz and Orthogonal frequency-division multiplexing · See more »

IEEE 802.11

IEEE 802.11 is a set of media access control (MAC) and physical layer (PHY) specifications for implementing wireless local area network (WLAN) computer communication in the 900 MHz and 2.4, 3.6, 5, and 60 GHz frequency bands.

IEEE 802.11 and Modem · IEEE 802.11 and Orthogonal frequency-division multiplexing · See more »

ITU-T

The ITU Telecommunication Standardization Sector (ITU-T) is one of the three sectors (divisions or units) of the International Telecommunication Union (ITU); it coordinates standards for telecommunications.

ITU-T and Modem · ITU-T and Orthogonal frequency-division multiplexing · See more »

Mobile broadband

Mobile broadband is the marketing term for wireless Internet access through a portable modem, USB wireless modem, tablet/smartphone or other mobile device.

Mobile broadband and Modem · Mobile broadband and Orthogonal frequency-division multiplexing · See more »

Modulation

In electronics and telecommunications, modulation is the process of varying one or more properties of a periodic waveform, called the carrier signal, with a modulating signal that typically contains information to be transmitted.

Modem and Modulation · Modulation and Orthogonal frequency-division multiplexing · See more »

Noisy-channel coding theorem

In information theory, the noisy-channel coding theorem (sometimes Shannon's theorem or Shannon's limit), establishes that for any given degree of noise contamination of a communication channel, it is possible to communicate discrete data (digital information) nearly error-free up to a computable maximum rate through the channel.

Modem and Noisy-channel coding theorem · Noisy-channel coding theorem and Orthogonal frequency-division multiplexing · See more »

Phase-shift keying

Phase-shift keying (PSK) is a digital modulation process which conveys data by changing (modulating) the phase of a constant frequency reference signal (the carrier wave).

Modem and Phase-shift keying · Orthogonal frequency-division multiplexing and Phase-shift keying · See more »

Power-line communication

Power-line communication (PLC) carries data on a conductor that is also used simultaneously for AC electric power transmission or electric power distribution to consumers.

Modem and Power-line communication · Orthogonal frequency-division multiplexing and Power-line communication · See more »

Quadrature amplitude modulation

Quadrature amplitude modulation (QAM) is the name of a family of digital modulation methods and a related family of analog modulation methods widely used in modern telecommunications to transmit information.

Modem and Quadrature amplitude modulation · Orthogonal frequency-division multiplexing and Quadrature amplitude modulation · See more »

Symbol rate

In digital communications, symbol rate, also known as baud rate and modulation rate, is the number of symbol changes, waveform changes, or signaling events, across the transmission medium per time unit using a digitally modulated signal or a line code.

Modem and Symbol rate · Orthogonal frequency-division multiplexing and Symbol rate · See more »

Telebit

Telebit was a US-based modem manufacturer, known for their TrailBlazer series of high-speed modems.

Modem and Telebit · Orthogonal frequency-division multiplexing and Telebit · See more »

WiMAX

WiMAX (Worldwide Interoperability for Microwave Access) is a family of wireless communication standards based on the IEEE 802.16 set of standards, which provide multiple physical layer (PHY) and Media Access Control (MAC) options.

Modem and WiMAX · Orthogonal frequency-division multiplexing and WiMAX · See more »