OFDM carrier frequency offset
SYNCRONIZATION METHOD FOR CARRIER FREQUENCY OFFSET IN OFDM
... single carrier system signal representing each bit uses all of the available ...Orthogonal frequency division multiplexing (OFDM) is an effective transmission scheme to combat multipath ...is ...
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Carrier frequency offset estimation method for 2 × 1 MISO TDS OFDM systems
... In this paper, we have proposed a PN sequence phase ro- tation transmission method and a frequency estimation scheme using CSI. The proposed PN transmission method rotated the transmitted PN sequences differently ...
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Carrier Frequency Offset Estimation in Multiuser Simultaneous Channel Access for MIMO OFDM based WLANs
... for carrier frequency offset estimation in a scenario where multiple users upload to a central coordinator ...simultaneously. OFDM based systems are highly prone carrier ...
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Improved OFDM by cancellation carrier frequency offset in GFDM based on multi-carrier modulation for future machine to machine systems
... multiple access systems adversely affect subcarrier orthogonality and impose a serious performance loss. The application of time domain receiver windowing to concentrate the leakage caused by carrier ...
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ICI Mitigation Techniques in OFDM System: A Review
... - Carrier frequency offset, phase noise, timing offset and Doppler spread due to frequency error causes Inter Carrier Interference, which degrades the performance of Orthogonal ...
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PERFORMANCE COMPARISON OF HAAR OFDM AND DAUBECHIES OFDM IN PRESENCE OF CARRIER FREQUENCY OFFSET (CFO) AND DOPPLER EFFECT
... Conventional OFDM uses IFFT at the transmitter side for generating the orthogonal subcarriers. A cyclic prefix is added to the data symbols to combat the delay spread introduced by the fading environment and CP ...
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A time-domain control signal detection technique for OFDM
... CFO, carrier frequency offset; CP, cyclic prefix; EVA, extended vehicular type A; FFT, fast Fourier transform; IFFT, inverse fast Fourier transform; ISI, inter-symbol interference; LTE, Long-Term ...
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Carrier Frequency Offset Estimation and I/Q Imbalance Compensation for OFDM Systems
... Orthogonal frequency division multiplexing (OFDM) tech- nique has been extensively used in communication systems such as wireless local area networks (WLAN) and digital broadcasting ...
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Performance Analysis of the Blind Minimum Output Variance Estimator for Carrier Frequency Offset in OFDM Systems
... Orthogonal frequency division multiplexing (OFDM) has been considered as a promising modulation scheme for the next generation wireless communication ...systems. OFDM signals are transmitted in ...
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Bit Error Rate Approximation of MIMO OFDM Systems with Carrier Frequency Offset and Channel Estimation Errors
... IAI appears with multiple transmit antennas, and the BER will degrade as IAI increases. Note that since IAI cannot be totally eliminated in the presence of the frequency o ff set and channel estimation errors, a ...
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Reduction of ICI Using ICI Self Cancellation Scheme in OFDM Systems
... - OFDM is a multicarrier modulation technique in which a high rate bitstream is split into N parallel bit-streams of lower rate and each of these are modulated using one of N orthogonal ...of frequency ...
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Joint frequency offset, time offset, and channel estimation for OFDM/OQAM systems
... orthogonal frequency division multiplexing (OFDM) for future wireless networks, a derivative of OFDM based on offset quadrature amplitude modulation (OFDM/OQAM) has received ...
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Carrier Frequency Offset Estimation for Multiuser MIMO OFDM Uplink Using CAZAC Sequences: Performance and Sequence Optimization
... Orthogonal Frequency Division Multiplexing (OFDM) is a widely used technology for wireless communication in frequency selective fading channels due to its high spectral efficiency and its ability to ...
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An Elaborate Frequency Offset Estimation for OFDM Systems
... The OFDM symbol is affected by multi-path ...between OFDM symbols, GI is interpolated between continuous ...The OFDM symbol, which is added by CP in the period of first symbol is changed to discrete ...
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Evaluation of Channel Estimation Combined with ICI Self-Cancellation Scheme in Doubly Selective Fading Channel
... Orthogonal Frequency Division Multiplexing (OFDM) is a modulation scheme, which is used in several wireless systems for transferring data at high ...the frequency offset between the ...
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Exact BER Analysis of OFDM Systems Communicating over Frequency Selective Fading Channels Subjected to Carrier Frequency Offset
... Orthogonal Frequency Division Multiplexing (OFDM) has been employed in numerous wireless ...of OFDM systems is degraded by both the Carrier Frequency Offset (CFO) and the Phase ...
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Modeling and Optimization MIMO OFDM in Wireless Transceivers for Transient Carrier Frequency Offset L Rajeshwar Reddy & Belcy D Mathews
... the introduction OFDM image, despite the fact that we don't perceive any change on the greatness of the got flag. While it might be conceivable to devise a circuit to track the power supply voltage, the subsequent ...
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TEXTURE PATTERN IN ABNORMAL MAMMOGRAMS CLASSIFICATION USING SUPERVISED MACHINE LEARNING TECHNIQUES
... orthogonal frequency division multiplexing (OFDM) has been embraced in many standards such as asymmetric digital subscriber line (ADSL), wireless local area networks (WLANs) and digital video broadcasting ...
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MIMO OFDM Channel Estimation in the Presence of Carrier Frequency Offset
... in frequency-selective channels, is expected to play an impor- tant role in future wireless ...However, OFDM techniques are more sensitive to carrier frequency offset (CFO) than single- ...
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TWO APPROACHES ON CARRIER FREQUENCY OFFSET ESTIMATION IN MIMO OFDM SYSTEMS
... iterative carrier frequency offset estimation algorithm based on the EKF algorithm and multi-antenna channel ML estimation for MIMO-OFDM ...
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