adaptive orthogonal frequency division multiplexing
Adaptive Orthogonal Frequency Division Multiplexing Schemes
... The choice of the modulation scheme for each group is determined by estimating the frequency domain channel transfer function H^ n on the basis of the last received OFDM symbol and compa[r] ...
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Additional Band width Design with Adaptive Orthogonal Frequency Division multiplexing
... communication problems such as broadcasting and gossiping in an efficient manner . we present an OFDMA – based deterministic distributed algorithm for neighbor discovery. An OFDMA system is considered to be suitable for ...
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Adaptive relaying protocol multiple-input multiple-output orthogonal frequency division multiplexing systems
... communications, orthogonal frequency division multiplex- ing (OFDM) has been adopted as a promising technique to mitigate multi-path fading and provide high spectral ...
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Empirical Mode Decomposition based Adaptive Filtering for Orthogonal Frequency Division Multiplexing Channel Estimation
... In present day scenario there has been a vast demand for high data rate wireless communication system and that demand is increasing continuously. On similar lines, the research is also progressing. One of the key ...
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Abstract Orthogonal Frequency Division Multiplexing (OFDM) is the broadband multicarrier
... user orthogonal frequency division multiplexing (OFDM) has attracted much attention as an effective transceiver technique for high-speed multi- user wireless systems that can provide high ...
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Adaptive relaying protocol multiple-input multiple-output orthogonal frequency division multiplexing systems
... ities. Adaptive BL utilizes prior knowledge of channel state information (CSI) to improve the system performance by allocating more bits to sub-carriers that have higher ...
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Green optical orthogonal frequency-division multiplexing networks
... In [16], the authors proposed a novel spectrum-ef fi cient and scalable optical transport network architecture known as the spectrum-sliced elastic optical path network (SLICE). In [17], the authors consider supporting ...
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DIVERSITY IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING; A SURVEY
... spatial multiplexing techniques, where the main objective is to provide higher bit rates compared to a single-antenna system, spatial diversity techniques predominantly aim at an improved error ...an ...
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Performance Analysis of Adaptive Beamforming Algorithms for Orthogonal Frequency Division Multiplexing System
... Abstract— Orthogonal Frequency Division Multiplexing (OFDM) is gaining popularity for high data rate communication ...of adaptive beamforming for interference rejection in OFDM systems, ...
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Orthogonal Frequency Division Multiplexing Technique
... for adaptive equalizing ...WBMCS. Orthogonal frequency division Multiplexing (OFDM) Apply to parallel-data transmission scheme, which reduces the influence of multipath fading and makes ...
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Optimum low complexity filter bank for generalized orthogonal frequency division multiplexing
... the frequency domain, we define the spectral efficiency as the ratio of useful symbols to the total transmitted symbols during each output block, and then, the spectral efficiency of OFDM, GOFDM, and GFDM are ...
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Analysis On The Effect Of Inter-Cell Interefence In LTE By Using Matlab
... Inter-cell interference (ICI) occurs when users in different adjacent cells attempt to use the same frequency at the same time. ICI may cause severe degradation in terms of the bit error rate (BER) which in turn ...
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Quadrature Amplitude Modulation All Optical Orthogonal Frequency Division Multiplexing-dense Wavelength Division Multiplexing-optical Wireless Communication System under Different Weather Conditions
... where, i = 1 ,2,...M, M is the number of possible sequence of binary digits. The up conversion of the electrical data frequency to optical frequency was performed using Mach-Zehnder modulator MZM. The ...
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PERFORMANCE ANALYSIS OF PREAMBLE DETECTION IN WIMAX 802.16E SYSTEM USING FADING CHANNEL WITH OFDM.Kiran Gawande1, Prof. Mukesh Patidar2, Prof. A. C. Tiwari3, Mr. Vijit Mishra4
... Moving objects change their positions and hence the received multipath components reflected from these vary over time. This effect is called slow fading. Additionally fast fading can complicate the mobile reception. Fast ...
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Enhancing Performance for Orthogonal Frequency Division Multiplexing in Wireless System
... The demodulators, translating each carrier down to DC. The resulting signal is integrated over the symbol period to regenerate the data from that carrier. The same demodulator also demodulates the other carriers. As the ...
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Analysis of Single RF Performance on MIMO-OFDM System Using Turbo Code and V-BLAST MMSE Detection
... (Orthogonal Frequency Division ...(Orthogonal Frequency Division Multiplexing) is a transmission method using multicarrier technique, dividing spectrum frequency ...
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REVIEW ON ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING: STUDY AND SURVEY
... 2) Frequency-Offset Estimation and Correction: From the perspective of its impact and signal processing, the CFO can be divided into integer and fractional ...the frequency shift ...
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BER PERFORMANCE STUDY OF ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING
... In this paper, MATLAB computer-simulation software is used, which is produced by MathWork Inc. MATLAB, a sophisticated language for matrix calculation, and stands for MATrix LABoratory. MATLAB is chosen as the computer ...
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Design, Modelling and Implementation of Variable FFT Processor
... The synthesis report shows the complete details of device utilization. Device utilization summary is the report of used device hardware in the implementation of the chip such as RAM, ROM, slices, flip flops etc. If the ...
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VHF adaptive antenna using a rear defogger
... used adaptive beamforming to achieve maximum reception in a specified direction by estimating the signal arrival from a desired direction while signals of the same frequency from other directions are ...
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