time-frequency-division multiplexing scheme
Semiblind frequency-domain timing synchronization and channel estimation for OFDM systems
... estimation scheme for orthogonal frequency division multiplexing (OFDM) ...the time-domain, a frequency-domain timing synchronization algorithm is ...fine time adjustment ...
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Orthogonal Frequency Division Multiplexing Technique
... An idealized OFDM communication system model can be shown as Figure 1. [1] In the transmitter, the signal source, a serial binary sequence, is first de multiplexed into multiple parallel data streams, corresponding to ...
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A synchronization technique for generalized frequency division multiplexing
... Generalized frequency division multiplexing (GFDM) is a block filtered multicarrier modulation scheme recently proposed for future wireless communication ...orthogonal frequency ...
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STBC-OFDM using Compressive Sensing Theory for Wireless Systems
... by frequency-selective fading due to the multi-path effect and time- selective fading because of the relative mobility between the transmitter and the ...both frequency-selectivity and ...
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Evaluation of Channel in Orthogonal Frequency Division Multiplexing
... GHz frequency band Hiperlan/2 standard makes use of OFDM modulation along with TDMA access scheme to competently exploit the channels which are time dispersive with frequency selective ...
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Optimization Of Papr In Orthogonal Frequency Division Multiplexing
... easiest scheme to achieve PAPR reduction in time domain it can be used with any other time domain reduction ...overall scheme is shown in Fig ...
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Orthogonal Frequency Division Multiplexing & Measurement of its Performance
... is time-limited for each symbol ...OFDM scheme places a guard band at outer subcarriers, called virtual carriers (VCs), around the frequency band to reduce the out-of-band ...OFDM scheme also ...
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DIVERSITY IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING; A SURVEY
... Since the advent of STTCs and OSTBCs in 1998, various other families of space-time codes have been proposed in the literature. Similar to OSTBCs, square-matrix embeddable STBCs allow for ML detection at the ...
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Unequal Power Allocation For Image Transmission
... (UPA) scheme and orthogonal frequency division multiplexing (OFDM) over AWGN channels is ...transmission time to compensate for the channel ...
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BER PERFORMANCE STUDY OF ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING
... transmission time for each ...the frequency domain instead of time domain as in the case of single carrier ...transmission scheme that reduces that effects of multipath fading and renders ...
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Survey of Orthogonal Frequency Division Multiplexing
... [3-5], frequency domain equalization [6], time domain windowing [7] and ICI ...estimation scheme uses training sequences such as pilot symbols [8-10]; performed in two steps coarse and fine ...
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Effect of Cyclic Prefix on OFDM Signal
... Orthogonal Frequency Division Multiplexing (OFDM) is a multi-carrier scheme used in modern broadband wire- less communication systems to transmit data over a number of orthogonal ...
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An Efficient Hierarchical Modulation based Orthogonal Frequency Division Multiplexing Transmission Scheme for Digital Video Broadcasting
... modulation scheme to upgrade broadcasting system and gave analysis and showed the trade-off between bitrate of the data in both ...single frequency network in DVB ...improved scheme for DVB SH where ...
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OFDM: Comparison with Multicarrier Techniques and Applications
... The demand for high data rate services has been increasing very rapidly and there is no slowdown in sight. Currently Global System for Mobile telecommunications (GSM) technology is being applied to wireless phone ...
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REVIEW ON WDM AND TDM PON USING DIFFERENT CODING SCHEMES FOR EXTENDED REACH
... The performance is analyzed using the simulation done in the OptiSystem.7 simulation tool of Opti-Wave software. To compare the performance of various networks various factor are analyzed fiber length, different data ...
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A time-domain control signal detection technique for OFDM
... Unlike the control information, the payload (user data) is randomly generated at the transmitter and it is usually dif- ferent for each user. In terms of data recovery, detection of control signalling information is ...
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A Novel Low Computational Complexity Multiple Signal Representation Technique for PAPR Reduction in OFDM Systems
... The Orthogonal Frequency Division Multiplexing (OFDM) is a digital modulation method that splits a channel into larger set of narrow parallel sub-channels. Hence, it uses multiple-carriers for high ...
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Detailed Mathematical Analysis and Performance Evaluation of MIMO-OFDM-CDMA System Using ZF Receiver
... Code Division Multiple Access (CDMA) is a multiplexing technique where a large number of users simultaneously share a radio channel at the same time by spreading their information with preassigned ...
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A OFDM in LTE Using Different Modulation Techniques with BER Analysis Based On Wavelet and Conventional
... modulation scheme (typically differential BPSK, QPSK, or ...its time domain signal using an Inverse Fourier ...a time domain ...the time domain signal of the same number of ...in ...
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Design And Implementation Of Orthogonal Frequency Division Multiplexing Receiver
... Projek ini adalah suatu penerima Orthogonal Frequency Division Multiplexing (OFDM). Projek ini bertujuan untuk mereka bentuk, melakukan simulasi dan mengaplikasikan untuk Penyiaran Video Digital - ...
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