Code Division Multiple Access
GPTKB entity
Statements (49)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
multiple access method
|
| gptkbp:abbreviation |
gptkb:CDMA
|
| gptkbp:allows |
multiple users to share same frequency band
|
| gptkbp:basisFor |
gptkb:cdma2000
gptkb:cdmaOne gptkb:WCDMA |
| gptkbp:competitor |
gptkb:GSM
gptkb:TDMA |
| gptkbp:deployment |
1995
|
| gptkbp:developedBy |
gptkb:Qualcomm
|
| gptkbp:enables |
simultaneous voice and data transmission
|
| gptkbp:feature |
high spectral efficiency
increased capacity resistance to interference code reuse power control soft handoff asynchronous transmission cell breathing handover between cells low probability of interception multipath resistance no frequency planning required robustness to fading security through code separation soft capacity soft capacity limit support for voice and data variable data rates |
| https://www.w3.org/2000/01/rdf-schema#label |
Code Division Multiple Access
|
| gptkbp:inventedBy |
gptkb:Qualcomm
|
| gptkbp:relatedTo |
gptkb:direct_sequence_spread_spectrum
frequency hopping |
| gptkbp:standardizedBy |
gptkb:3GPP2
|
| gptkbp:usedIn |
gptkb:IS-95
gptkb:cdma2000 gptkb:wireless_local_loop gptkb:3G cellular networks satellite communication radio communications military communication 4G (as a legacy technology) UMTS (as WCDMA) paging systems |
| gptkbp:uses |
spread spectrum technology
unique codes for each user |
| gptkbp:bfsParent |
gptkb:CDMA
|
| gptkbp:bfsLayer |
5
|