Statements (43)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
digital modulation scheme
|
| gptkbp:advantage |
high peak-to-average power ratio
sensitivity to frequency offset sensitivity to phase noise |
| gptkbp:category |
gptkb:signal_processing
telecommunications digital modulation |
| gptkbp:enables |
efficient bandwidth usage
high data rates |
| gptkbp:feature |
efficient implementation using FFT
high spectral efficiency resistance to interference robustness against multipath fading |
| https://www.w3.org/2000/01/rdf-schema#label |
OFDM
|
| gptkbp:introducedIn |
1966
|
| gptkbp:inventedBy |
gptkb:R._W._Chang
|
| gptkbp:relatedTo |
gptkb:QAM
gptkb:COFDM gptkb:FDM gptkb:SC-FDMA |
| gptkbp:requires |
complex transmitter and receiver design
precise synchronization |
| gptkbp:standardizedBy |
gptkb:IEEE_802.16
gptkb:DVB-T gptkb:IEEE_802.11a gptkb:IEEE_802.11g gptkb:WiMAX gptkb:DVB-H LTE |
| gptkbp:standsFor |
gptkb:Orthogonal_Frequency-Division_Multiplexing
|
| gptkbp:usedIn |
gptkb:4G_LTE
Wi-Fi wireless communications digital television DSL DAB radio powerline communication |
| gptkbp:uses |
cyclic prefix
multiple closely spaced carriers orthogonal subcarriers |
| gptkbp:bfsParent |
gptkb:IEEE_802.11
gptkb:IEEE_802.22 |
| gptkbp:bfsLayer |
4
|