CDMA spectral efficiency

<p>CDMA spectral efficiency refers to the <a href="/facts/System_spectral_efficiency/GaePAvv9">system spectral efficiency</a> in bit/s/Hz/site or <a href="/facts/Erlang_(unit)/mmlrswcI">Erlang</a>/MHz/site that can be achieved in a certain <a href="/facts/CDMA/o2RLKE4M">CDMA</a> based wireless communication system. CDMA techniques (also known as <a href="/facts/Spread_spectrum/0NKdJX1S">spread spectrum</a>) are characterized by a very low <a href="/facts/Link_spectral_efficiency/GaePAvv9">link spectral efficiency</a> in (bit/s)/Hz as compared to non-spread spectrum systems, but a comparable system spectral efficiency.
</p><p>The system spectral efficiency can be improved by <a href="/facts/Radio_resource_management/AC4jhxu9">radio resource management</a> techniques, resulting in that a higher number of simultaneous calls and higher data rates can be achieved without adding more radio spectrum or more base station sites. This article is about radio resource management specifically for <a href="/facts/Direct-sequence_spread_spectrum/l3u1HVTd">direct-sequence spread spectrum</a> (DS-CDMA) based cellular systems.
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CDMA spectral efficiency open-in-new

CDMA spectral efficiency