OFDM carrier frequency synchronization
Carrier Frequency Synchronization in OFDM-Downlink LTE Systems
... using OFDM. Orthogonal frequency division multiplexing (OFDM) is a modulation technique that achieves high data rates, increased bandwidth efficiency and robustness in multipath ...However, ...
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Frequency Offset Compensation In OFDM System Using Neural Network
... Orthogonal Frequency Division Multiplexing (OFDM) finds various applications in wireless ...the carrier frequency offset (CFO) in the orthogonal frequency division multiplexing ...
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Closed-Loop Derivation and Evaluation of Joint Carrier Synchronization and Channel Equalization Algorithm for OFDM Systems
... joint carrier synchronization and channel equalization algorithm [1]-[2] was presented to simultaneously combat the residual carrier frequency offset (CFO) and the channel distortion for ...
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A reduced complexity scheme for carrier frequency synchronization in uplink 802.16e OFDMA
... Figure 4 shows the BER curves for the UL PUSC permutation mode. The schemes being compared are SAGE + DC-SC (with one and two SAGE iterations), DA- PIT + DC-SC, and the proposed IEC. The SAGE + DC-SC ...
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Fine Timing synchronization for OFDM Receiver
... Time synchronization error effect the performance of OFDM receiver and Carrier frequency synchronization is critical to the quality of signal reception in OFDM ...time ...
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TWO APPROACHES ON CARRIER FREQUENCY OFFSET ESTIMATION IN MIMO OFDM SYSTEMS
... SISO OFDM, some methods rely on training blocks [7, 8], while others just take advantage of standard transmission format; ...time-frequency synchronization joint with the channel identification in ...
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Channel Estimation with Improved OFDM
... Orthogonal frequency division multiplexing (OFDM) is a novel technology which stands as a promising choice for future data rate ...Currently OFDM is widely used in wireless communication because of ...
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Development of OFDM based Cooperative Communication System for Mitigation of Effect of Carrier Frequency offset
... in OFDM systems has been the subject of much analysis [1; 3; 5; 6; 8; ...and carrier frequency offset each present their own unique set of ...challenges. OFDM systems are particularly ...
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Analysis of frequency domain frame detection and synchronization in OQAM OFDM systems
... efficient synchronization methods making use of the favorable frequency contain- ment of the filter bank to improve robustness in spectrum sharing ...orthogonal frequency division multiplexing ...
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TEXTURE PATTERN IN ABNORMAL MAMMOGRAMS CLASSIFICATION USING SUPERVISED MACHINE LEARNING TECHNIQUES
... In OFDM all the carriers are modulated by a digital ...Orthogonal Frequency Division Multiplexing (OFDM) is used to transform a frequency selective fading channel in to multiple selective ...
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Efficient integer frequency offset estimation architecture for enhanced OFDM synchronization
... A second efficiency gain is achieved by creating a resource sharing folded architecture. Conventional IFO estimation is computed across all pilots in the preamble. This results in considerable hardware overhead, ...
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Improving the OFDMA Performance with Common Carrier Frequency Offset Correction
... Orthogonal frequency-division multiplexing (OFDM) is widely used in modern wireless communications for its good ability to reduce the multipath ...As OFDM is used in a multiple access (MA) system, ...
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Carrier Frequency Offset Estimation for OFDM Systems Using Time/Frequency-Domain Techniques
... of OFDM is to split a high rate data- stream into multiple lower rate data streams that are transmitted simultaneously over a number of sub ...carriers. OFDM uses the spectrum much more efficiently by ...
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Parameter Estimation and Error Reduction in Multicarrier Systems by Time-Domain Spreading
... and frequency synchronization methods for OFDM systems in a multipath fading ...modified OFDM system using a time- domain spreading (TDS) coupled with a cyclic time ...timing,and carrier ...
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Packet Format Design and Decision Directed Tracking Methods for Filter Bank Multicarrier Systems
... on OFDM multicarrier ...the carrier frequency, timing phase acqui- sition, and adjustment of the tap weights of a set of frequency domain equalizer then ...these synchronization steps ...
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Frequency Synchronization in OFDM System
... Orthogonal frequency division multiplexing (OFDM) is a digital multi-carrier modulation technique that has be- come an increasingly popular scheme in modern digital ...adopt OFDM as their ...
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Timing and Frequency Synchronization in Practical OFDM Systems
... The fractional CFO refinement, which is realized by jointly estimating the chan- nel, can be performed after the integer CFO is determined. Morelli and Mengali derived a CFO estimator in [14] based on the ML criterion ...
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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 Evolution; ...
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PERFORMANCE COMPARISON OF HAAR OFDM AND DAUBECHIES OFDM IN PRESENCE OF CARRIER FREQUENCY OFFSET (CFO) AND DOPPLER EFFECT
... Orthogonal frequency division multiplexing (OFDM) has emerged as a promising technology to provide these high data ...rates. OFDM is a digital modulation technique which divides the available ...
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Self Heterodyne in MIMO OFDM system on Relay path Analysis
... channel frequency responses matrix, Nt is the number of transmit antennas, Nr is the number of receive antennas, fc is RF carrier frequency, Δf is OFDM subcarrier spacing, Ns is the number of ...
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