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- Carrier_frequency_offset abstract "Carrier frequency offset (CFO) is one of many non-idealities in baseband receiver design. In designing a baseband receiver, we should notice not only the degradation invoked by non-ideal channel and noise, we should also regard RF and analog parts as the main consideration. Those non-idealities include sampling clock offset, IQ imbalance, power amplifier, phase noise and carrier frequency offset nonlinearity.Carrier frequency offset often occurs when the local oscillator signal for down-conversion in the receiver does not synchronize with the carrier signal contained in the received signal. This phenomenon can be attributed to two important factors: frequency mismatch in the transmitter and the receiver oscillators; and the Doppler effect as the transmitter or the receiver is moving.When this occurs, the received signal will be shifted in frequency. For an OFDM system, the orthogonality among sub carriers is maintained only if the receiver uses a local oscillation signal that is synchronous with the carrier signal contained in the received signal. Otherwise, mismatch in carrier frequency can result in inter-carrier interference (ICI).The oscillators in the transmitter and the receiver can never be oscillating at identical frequency. Hence, carrier frequency offset always exists even if there is no Doppler effect.In a standard-compliant communication system, such as the IEEE 802.11 WLAN the oscillator precision tolerance is specified to be less than ±20 ppm, so that CFO is in the range from - 40 ppm to +40 ppm.".
- Carrier_frequency_offset wikiPageID "47076907".
- Carrier_frequency_offset wikiPageLength "14380".
- Carrier_frequency_offset wikiPageOutDegree "68".
- Carrier_frequency_offset wikiPageRevisionID "693936622".
- Carrier_frequency_offset wikiPageWikiLink Algorithm.
- Carrier_frequency_offset wikiPageWikiLink Audio_power_amplifier.
- Carrier_frequency_offset wikiPageWikiLink Autocorrelation.
- Carrier_frequency_offset wikiPageWikiLink Baseband.
- Carrier_frequency_offset wikiPageWikiLink Carrier_frequency.
- Carrier_frequency_offset wikiPageWikiLink Category:Signal_processing.
- Carrier_frequency_offset wikiPageWikiLink Channel.
- Carrier_frequency_offset wikiPageWikiLink Continuous_signal.
- Carrier_frequency_offset wikiPageWikiLink DVB-T.
- Carrier_frequency_offset wikiPageWikiLink Discrete-time_Fourier_transform.
- Carrier_frequency_offset wikiPageWikiLink Doppler_effect.
- Carrier_frequency_offset wikiPageWikiLink Framebased.
- Carrier_frequency_offset wikiPageWikiLink Frequency_domain.
- Carrier_frequency_offset wikiPageWikiLink IEEE_802.11.
- Carrier_frequency_offset wikiPageWikiLink IEEE_802.16.
- Carrier_frequency_offset wikiPageWikiLink IQ_imbalance.
- Carrier_frequency_offset wikiPageWikiLink MIMO-OFDM.
- Carrier_frequency_offset wikiPageWikiLink Noise.
- Carrier_frequency_offset wikiPageWikiLink Orthogonal_frequency-division_multiple_access.
- Carrier_frequency_offset wikiPageWikiLink Orthogonal_frequency-division_multiplexing.
- Carrier_frequency_offset wikiPageWikiLink Orthogonality.
- Carrier_frequency_offset wikiPageWikiLink Phase_(waves).
- Carrier_frequency_offset wikiPageWikiLink Phase_noise.
- Carrier_frequency_offset wikiPageWikiLink RX_meter.
- Carrier_frequency_offset wikiPageWikiLink Radio_frequency.
- Carrier_frequency_offset wikiPageWikiLink Radio_receiver.
- Carrier_frequency_offset wikiPageWikiLink Sampling_clock_offset.
- Carrier_frequency_offset wikiPageWikiLink Single-input_single-output_system.
- Carrier_frequency_offset wikiPageWikiLink Subcarrier.
- Carrier_frequency_offset wikiPageWikiLink Time_domain.
- Carrier_frequency_offset wikiPageWikiLink Transmitter.
- Carrier_frequency_offset wikiPageWikiLink Wireless_LAN.
- Carrier_frequency_offset wikiPageUsesTemplate Template:Orphan.
- Carrier_frequency_offset subject Category:Signal_processing.
- Carrier_frequency_offset comment "Carrier frequency offset (CFO) is one of many non-idealities in baseband receiver design. In designing a baseband receiver, we should notice not only the degradation invoked by non-ideal channel and noise, we should also regard RF and analog parts as the main consideration.".
- Carrier_frequency_offset label "Carrier frequency offset".
- Carrier_frequency_offset wasDerivedFrom Carrier_frequency_offset?oldid=693936622.
- Carrier_frequency_offset isPrimaryTopicOf Carrier_frequency_offset.