CNR meaning in Computer and Networking ?

Answer: What is Carrier to Noise Ratio mean?

In telecommunications, the carrier-to-noise ratio, often written CNR or C/N, is the signal-to-noise ratio (SNR) of a modulated signal. The term is used to distinguish the CNR of the radio frequency passband signal from the SNR of an analog base band message signal after demodulation, for example an audio frequency analog message signal. If this distinction is not necessary, the term SNR is often used instead of CNR, with the same definition.

Digitally modulated signals (e.g. QAM or PSK) are basically made of two CW carriers (the I and Q components, which are out-of-phase carriers). In fact, the information (bits or symbols) is carried by given combinations of phase and/or amplitude of the I and Q components. It is for this reason that, in the context of digital modulations, digitally modulated signals are usually referred to as carriers. Therefore, the term carrier-to-noise-ratio (CNR), instead of signal-to-noise-ratio (SNR), is preferred to express the signal quality when the signal has been digitally modulated.

High C/N ratios provide good quality of reception, for example low bit error rate (BER) of a digital message signal, or high SNR of an analog message signal.

reference

Full Form	Category
Chief of Naval Research	Academic & Science
Clinical Nutrition Research	Academic & Science
Center for Neuroscience Research	Academic & Science
Centre for Narrative Research	Academic & Science
Conseil National de Recherches	Academic & Science
Committee on Natural Resources	Academic & Science
Chanaral	Airport Code
Cancel Not Reschedule	Business
Condor Res.	Business
Canadian National Railway Company	Business
Coonawarra Australia Property Trust	Business
Compagnie Nationale du Rhône	Business
Casting Not Recommended	Business
China National Radio	Community
Committee For Nuclear Responsibility	Community
Carrier to Noise Ratio	Computer and Networking
Communications/network Riser	Computer Hardware
Corner	Computing
Click and Run	Computing
Channel Number	Computing
Colour Noise Reduction	Computing
Complex Node Representation	Computing
Canary	Cryptocurrency
College of Natural Resources	Educational Institute
College of New Rochelle	Educational Institute
Clutter To Noise Ratio	Electronics
Caldwell Night Rodeo	General
City National Rochdale	General
Critical Needs Request	General
C N ratio	General
Charles Nelson Reilly	General
Could Not Resist	General
Can Not Reproduce	General
Child Nutrition Reauthorization	General
Catch and Release	General
Catch Neuter Release	General
Change Notification Receiver	General
Composite Neck Reinforcement	General
Could Not Reproduce	General
Capital Non Recurring	General
Campionatul National de Raliuri	General
Comision Nacional de Rallies	General
Centro Nazionale Delle Ricerche	General
Consiglio Nazionale Delle Ricerche	General
Confederatia Nationala Rutiera	General
Cincinnati Bengals	General
Communication Networking Riser	General
Corpus Nummorum Romanorum	General
Communications and Networking Raiser	General
Communication and Networking Riser	General
Conditional Numerical Reproducibility	General
Centre National de Référence	General
Content Navigation Rule	General
Communicationand Network Riser	General
Contract Net Responder	General
Conan Novel Ring	General
Communications And Network Riser	General
Craftable Natural Resorces	General
Conduit not required	General
Center for Neuronal Regeneration	General
Comité National Routier	General
Combat Net Radio	General
Council of National Representatives	Governmental
Caldari Navy Raven	Governmental
CHANDAR	Indian Railway Station
Communications and Networking Riser	Information Technology
Comisión Nacional de Reconciliación	International
Centro Nacional de Registro	International
Centro Nacional de Registros	International
Certainly No Rush	Internet
Center for Nursing Research	Medical
Contrast-to-Noise Ratio	Medical
Center for Nursing and Rehabilitation	Medical
Center for Nursing Rehabilitation	Medical
Cell Nuclear Replacement	Medical
Combat Net Radio (sincgars) & Improved High Frequency Radio (ihfr)	Military and Defence
Communications Networking Riser	Networking
Communication Network Riser	Networking
Cisco Network Registrar	Networking
Canadian National Railways	Regional
Canadian National Railroad	Regional
Click N Run	Softwares