megachips per second (Mcps)
Megachips per second (Mcps) is a measure of the speed with which encoding elements, called chips
(not to be confused with microchips),
are generated in Direct Sequence Spread Spectrum (DSSS) signals. This speed is also known as the
chipping rate. A speed of 1 Mcps is equivalent to 1,000,000, or 106, chips per
second.
Typical chipping rates in third-generation (3G) wireless
systems are on the order of several million chips per second. For example, in Wideband
Code-Division Multiple Access (W-CDMA)
systems, the standard rate is 3.84 Mcps.
In some applications, the abbreviation Mcps is used in reference to frequencies in megacycles
(millions of cycles) per second. Technically, this usage for expressing frequencies is archaic. The
proper term is megahertz (MHz).
This was last updated in September 2005
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