Difference between revisions of "CDMA"

From ForensicsWiki
Jump to: navigation, search
m
(CDMA Benefits)
Line 2: Line 2:
  
 
'''Code division multiple access''' ('''CDMA''') is a cellular frequency that, originally developed during World War II for military purposes, incorporates "spread spectrum" techniques. Unlike other cellular systems like [[GSM]] and [[TDMA]], every channel on the network uses the full available spectrum. This allows each user (identified by a unique [[pseudonoise code]] ([[PN]])) to communicate over several frequencies, as opposed to only one. This allows for better coverage, usually better signal strength, and a higher capacity to allow multiple users to connect at any given time.
 
'''Code division multiple access''' ('''CDMA''') is a cellular frequency that, originally developed during World War II for military purposes, incorporates "spread spectrum" techniques. Unlike other cellular systems like [[GSM]] and [[TDMA]], every channel on the network uses the full available spectrum. This allows each user (identified by a unique [[pseudonoise code]] ([[PN]])) to communicate over several frequencies, as opposed to only one. This allows for better coverage, usually better signal strength, and a higher capacity to allow multiple users to connect at any given time.
 +
 +
 +
== CDMA Benefits ==
 +
 +
- Greater capacity. Provides 10-20 times the capacity of analog equipment and three times the capacity of other digital platforms.
 +
 +
- Excellent voice and call quality through the filtering out of background noise, cross-talk, and interference.
 +
 +
- Rapid deployment. CDMA systems can be expanded quickly and more cost effectively than most landline networks.
 +
 +
- Fewer dropped calls
 +
 +
- Improved security and privacy because of CDMA's digitally encoded transmissions.
 +
Reduced background noise and interference by combining multiple signals which improves signal strength
 +
  
 
== External Links ==
 
== External Links ==
  
 
* [http://en.wikipedia.org/wiki/Cdma Wikipedia: CDMA]
 
* [http://en.wikipedia.org/wiki/Cdma Wikipedia: CDMA]

Revision as of 23:20, 11 April 2006

Overview

Code division multiple access (CDMA) is a cellular frequency that, originally developed during World War II for military purposes, incorporates "spread spectrum" techniques. Unlike other cellular systems like GSM and TDMA, every channel on the network uses the full available spectrum. This allows each user (identified by a unique pseudonoise code (PN)) to communicate over several frequencies, as opposed to only one. This allows for better coverage, usually better signal strength, and a higher capacity to allow multiple users to connect at any given time.


CDMA Benefits

- Greater capacity. Provides 10-20 times the capacity of analog equipment and three times the capacity of other digital platforms.

- Excellent voice and call quality through the filtering out of background noise, cross-talk, and interference.

- Rapid deployment. CDMA systems can be expanded quickly and more cost effectively than most landline networks.

- Fewer dropped calls

- Improved security and privacy because of CDMA's digitally encoded transmissions. Reduced background noise and interference by combining multiple signals which improves signal strength


External Links