CDMA – מילון אנגלי-אנגלי
CDMA (Code Division Multiple Access)
(in Cellular Communication) use of a unique code for each user (allows transferal of all of the calls for subscribers of one cell on a very wide band without causing interference)
Code division multiple access
CDMA
code division multiple access (CDMA)
A
coding scheme, used as a
modulation technique, in which multiple channels are independently coded for
transmission over a single
wideband channel. (
188 )
Note 1: In some communication systems, CDMA is used as an
access method that permits carriers from different stations to use the same transmission equipment by using a wider
bandwidth than the individual carriers. On reception, each
carrier can be distinguished from the others by means of a specific modulation
code, thereby allowing for the reception of signals that were originally overlapping in
frequency and
time. Thus, several transmissions can occur simultaneously within the same bandwidth, with the mutual
interference reduced by the degree of orthogonality of the unique codes used in each
transmission.
Note 2: CDMA permits a more uniform distribution of energy in the emitted
bandwidth.
CDMA
CODE DIVISION MULTIPLE ACCESS. CDMA
CDMA (Code Division Multiple Access)
CDMA, Code Division Multiple Access, (i mobilkommunikasjon) brukt som en unik kode for hver bruker (tillater overføring av alle anrop for abonnenter for en mobil på et veldig bredt bånd uten å forårsake forstyrrelser)
