Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
Signal-to-interference ratio
open-in-new
<h2 id="carrier-to-noise-and-interference-ratio-cnir">Carrier-to-noise-and-interference ratio (CNIR)</h2> <p>The CIR ratio is studied in interference limited systems, i.e. where <i>I</i> dominates over <i>N</i>, typically in cellular radio systems and broadcasting systems where frequency channels are reused in view to achieve high level of area coverage. The <i>C/N</i> is studied in noise limited systems. If both situations can occur, the carrier-to-noise-and-interference ratio (CNIR or <i>C/(N+I)</i>) may be studied. </p> <h2 id="see-also">See also</h2> <ul><li><a href="/facts/Carrier-to-noise_ratio/DP42mbjT">Carrier-to-noise ratio</a> (CNR or <i>C</i>/<i>N</i>)</li> <li><a href="/facts/Carrier-to-receiver_noise_density/DP42mbjT">Carrier-to-receiver noise density</a> (<i>C/N0</i>)</li> <li><a href="/facts/Co-channel_interference/I95JpU6Y">Co-channel interference</a> (CCI)</li> <li><a href="/facts/Crosstalk/IT2LIwth">Crosstalk</a></li> <li><a href="/facts/Signal-to-noise_ratio/qohClhyG">Signal-to-noise ratio</a> (SNR or <i>S</i>/<i>N</i>)</li> <li><a href="/facts/SINAD/gl00Pxox">SINAD</a> (ratio of signal-plus-noise-plus-distortion to noise-plus-distortion)</li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>Schwartz, Mischa (2005). Mobile Wireless Communications. Cambridge University Press. pp. 63–64. ISBN 978-0-521-84347-8. <a href="978-0-521-84347-8" target="_blank">978-0-521-84347-8</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>"Signal to Interference Ratio - an overview | ScienceDirect Topics". www.sciencedirect.com. Retrieved 2023-01-11. <a href="https://www.sciencedirect.com/topics/computer-science/signal-to-interference-ratio" target="_blank">https://www.sciencedirect.com/topics/computer-science/signal-to-interference-ratio</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> </ol>