Orthogonal Frequency Division Multiplexing (OFDM)
GPTKB entity
Statements (51)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
digital modulation scheme
|
| gptkbp:abbreviation |
gptkb:OFDM
|
| gptkbp:advantage |
efficient use of spectrum
sensitive to frequency offset high peak-to-average power ratio (PAPR) low inter-symbol interference requires precise synchronization |
| gptkbp:application |
broadband internet
cable television satellite communications mobile communications aerospace communications powerline communications |
| gptkbp:developedBy |
1960s
|
| gptkbp:enables |
high data rates
multi-user access adaptive modulation channel estimation |
| gptkbp:feature |
high spectral efficiency
resistance to interference robustness against multipath fading parallel data transmission simplified equalization |
| https://www.w3.org/2000/01/rdf-schema#label |
Orthogonal Frequency Division Multiplexing (OFDM)
|
| gptkbp:inventedBy |
gptkb:R.W._Chang
|
| gptkbp:patent |
gptkb:Bell_Labs
|
| gptkbp:relatedTo |
gptkb:Frequency_Division_Multiplexing_(FDM)
gptkb:Discrete_Multi-Tone_(DMT) |
| gptkbp:standardizedBy |
gptkb:IEEE_802.16
gptkb:DVB-T gptkb:IEEE_802.11a gptkb:IEEE_802.11g gptkb:IEEE_802.11n gptkb:DVB-H DAB |
| gptkbp:usedIn |
gptkb:4G_LTE
gptkb:WiMAX gptkb:Digital_Video_Broadcasting_(DVB) Wi-Fi wireless communications DAB radio digital television broadcasting DSL internet access |
| gptkbp:uses |
gptkb:Inverse_Fast_Fourier_Transform_(IFFT)
gptkb:Fast_Fourier_Transform_(FFT) cyclic prefix orthogonal subcarriers multiple closely spaced subcarriers |
| gptkbp:bfsParent |
gptkb:Flarion_Technologies
gptkb:Discrete_Multi-Tone_(DMT) |
| gptkbp:bfsLayer |
6
|