ICI meaning in General ?

Answer:

What is Inter Carrier Interface mean?

In telecommunications, orthogonal frequency-division multiplexing (OFDM) is a type of digital transmission and a method of encoding digital data on multiple carrier frequencies. OFDM has developed into a popular scheme for wideband digital communication, used in applications such as digital television and audio broadcasting, DSL internet access, wireless networks, power line networks, and 4G/5G mobile communications.

OFDM is a frequency-division multiplexing (FDM) scheme that was introduced by Robert W. Chang of Bell Labs in 1966. In OFDM, multiple closely spaced orthogonal subcarrier signals with overlapping spectra are transmitted to carry data in parallel. Demodulation is based on fast Fourier transform algorithms. OFDM was improved by Weinstein and Ebert in 1971 with the introduction of a guard interval, providing better orthogonality in transmission channels affected by multipath propagation. Each subcarrier (signal) is modulated with a conventional modulation scheme (such as quadrature amplitude modulation or phase-shift keying) at a low symbol rate. This maintains total data rates similar to conventional single-carrier modulation schemes in the same bandwidth.

The main advantage of OFDM over single-carrier schemes is its ability to cope with severe channel conditions (for example, attenuation of high frequencies in a long copper wire, narrowband interference and frequency-selective fading due to multipath) without the need for complex equalization filters. Channel equalization is simplified because OFDM may be viewed as using many slowly modulated narrowband signals rather than one rapidly modulated wideband signal. The low symbol rate makes the use of a guard interval between symbols affordable, making it possible to eliminate intersymbol interference (ISI) and use echoes and time-spreading (in analog television visible as ghosting and blurring, respectively) to achieve a diversity gain, i.e. a signal-to-noise ratio improvement. This mechanism also facilitates the design of single frequency networks (SFNs) where several adjacent transmitters send the same signal simultaneously at the same frequency, as the signals from multiple distant transmitters may be re-combined constructively, sparing interference of a traditional single-carrier system.

In coded orthogonal frequency-division multiplexing (COFDM), forward error correction (convolutional coding) and time/frequency interleaving are applied to the signal being transmitted. This is done to overcome errors in mobile communication channels affected by multipath propagation and Doppler effects. COFDM was introduced by Alard in 1986 for Digital Audio Broadcasting for Eureka Project 147. In practice, OFDM has become used in combination with such coding and interleaving, so that the terms COFDM and OFDM co-apply to common applications.

reference

Full Form	Category
Imperial Chemical Industries ( ICI, England)	Academic & Science
International Correspondence Institute	Academic & Science
Inner City Internship	Academic & Science
Institiúid Ceimice na hÉireann	Academic & Science
Institute of Chemistry of Ireland	Academic & Science
Invertebrate Community Index	Academic & Science
Iodine monochloride	Academic & Science
Cicia	Airport Code
Income Continuation Insurance	Business
Interior Contractors Inc	Business
Industrial Contractors Inc	Business
Commercial Investments	Business
Indiana Constructors Inc	Business
Industrial Commercial and Investment	Business
Investment Company Institute	Business
Imperial Chemical Industries	Business
The Internet Connection, Incorporated	Business
Interweave Continental, Inc.	Business
Independent Colleges of Indiana	Business
Independent Curators International	Business
Inter-Citic Minerals, Inc.	Business
Innovative Creations Inc	Business
International Certificate of Identity	Business
International Contractors Incorporated	Business
Institute for Cultural Inquiry	Community
Institute for Community Inclusion	Community
IFIP International Conference in Central Asia on Internet	Community
Interactive Communication Initiative	Community
Institute on Community Integration	Community
International Composers and Improvisors	Community
Islamic Center of Irving	Community
International Cocoa Initiative	Community
Industrial Conservation Initiative	Community
Inter Carrier Interference	Computer and Networking
Image Component Information	Computing
Institutul de Cercetare-Dezvoltare in Informatica	Computing
Incoming Call Identification	Computing
Inter-Exchange Carrier Interface	Computing
Interface Control Information	Computing
Iligan Computer Institute	Computing
I’m Crying Inside	Computing
Indian Concrete Institute	Country Specific
Ice Core Index	General
Integrated Calibration Index	General
Independent Commercial Importers	General
Intelligent Car Initiative	General
Intersection Conflict Index	General
Inflators Cheyyar India	General
In Car Infotainment	General
Inverted Colored Image	General
Istanbul Cooperation Initiative	General
Industrial Commercial Institutional	General
Inspire Creativity Initiative	General
Integrated Cellular Imaging	General
Integrated Communication Interface	General
Inner City Impact	General
Indoor Cycle Instructor	General
Inter Carrier Interface	General
Institute on Communication and Inclusion	Governmental
Industrial, Commercial, and Institutional	Governmental
Integrated Change Initiative	Governmental
Intercultural Communication Institute	Governmental
Issues in Critical Investigation	Governmental
International Cooperation Initiative	Governmental
Investment Casting Institute	Governmental
Insurance Center Inc	Insurance
Instituto de Cooperación Iberoamericana	International
International Contractors Inc	International
International Crankshaft Inc	International
Internet Computer Integration	Networking
Investment Companies Index	Stock Exchange