cyclic prefix only technique
BER IMPROVEMENT IN WIMAX SYSTEMS: A SURVEY1Sushant Nerkar, 2Ravi Kateeyare
... In [3] Zeyad Moh. Elkwash et.al implemented a WiMAX system with the help of MATLAB tool. The results of simulation are useful to evaluate the BER of different modulation techniques (BPSK, 4QAM, 16QAM, and 64QAM) by the ...
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Effect of Cyclic Prefix on OFDM Signal
... uses only a single carrier modulated with all the data to be sent, OFDM breaks the data to be sent into small chunks, allocates each sub-data stream to a sub- carrier and subsequently sends the data in parallel ...
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ISI Reduction in MIMO-OFDM with Insufficient Cyclic Prefix- A Survey
... MIMO-OFDM has gained considerable attention in wireless communication system. The high data rate and bandwidth efficiency of OFDM along with diversity techniquehas led to the use of this technology in many advanced ...
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OFDM system cyclic prefix characteristic analysis for WIMAX Technology
... this technique popular in wireless systems are sometimes counterbalanced by one major problem, which significantly reduces the average power at the output of the high-power amplifier (HPA) used at the ...use ...
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Effect of Variable Cyclic Prefix Length on OFDM System Performance over Different Wireless Channel Models
... transmission technique for wireless communication over wide band channels that exhibit frequency ...modulation technique of choice for most commercial ...
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Antenna Subset Selection for Cyclic Prefix Assisted MIMO Wireless Communications over Frequency Selective Channels
... effective only for frequency-flat or very moderately frequency selective channels ...this technique might prefer antenna subsets with heavy interference, even when the desired signal is very ...
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Effect of cyclic prefix in BER improvement in MIMO-OFDM system
... subcarriers. The other problem to solve is the inter- symbol interference, which is eliminated almost completely by introducing a guard time in every OFDM symbol. This means that in the guard time, the OFDM symbol is ...
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Reed-Solomon Coded OFDM with Unique Word as Guard Interval
... as cyclic prefixes (CPs)[1]. In order for the cyclic prefix to be effective ...the cyclic prefix must be at least equal to the length of the multipath ...of cyclic prefix ...
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Scalable Cyclic Prefix Based Adaptive Roll off Factor for Phase Offset Reduction in LTE
... with Cyclic Prefix (CP) [9] also demand some key ...Adaptive Cyclic Prefix (ACP) based ISI removal has been proposed which in fact works well in WiMAX scenarios ...Shaping Technique ...
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STBC-OFDM using Compressive Sensing Theory for Wireless Systems
... the cyclic prefix orthogonal frequency division multiplexing (CP- OFDM) is widely used to deal with problem of inter-symbol interference (ISI) in wireless ...used technique, CP-OFDM scheme utilizes ...
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Impact of Adaptive Downlink Uplink Channel Split Ratio and Cyclic Prefix on WiMAX Network
... access technique in wireless ...OFDM cyclic prefix is used to combat intersymbol inter-ference (ISI) and intercarrier interference (ICI) introduced by the multipath fading ...channel. Cyclic ...
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ANALYSIS OF DIFFERENT LENGTH OF SUB CHANNELS AND DIFFERENT ORDER OF MODULATION ON THE BASIS OF BIT ERROR RATE IN OFDM SYSTEM
... demodulation operation can be performed at the de-mapping area and parallel to serial converter after FFT of receiving end. The type of modulation can be decided in accordance with the type of information. There have ...
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Review for LS and LMMSE Channel Estimator Algorithm in MIMO OFDM.Anita Singh and Prof. Trushna Deotale
... estimation technique for LTE downlink system under the effect of channel length ....the cyclic prefix inserted at the beginning of each OFDM symbol length , simulation results shows for the 2 by 2 ...
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Iterative Frequency-Domain Channel Estimation and Equalization for Ultra-Wideband Systems with Short Cyclic Prefix
... plots, only the SNR computed over the data bits are considered instead of scaling the SNR over the data bits and the cyclic prefix in order to make the comparisons ...not only its decisions ...
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Analysis of Preamble and Synchronization Errors Estimation in Wireless OFDM Communications
... During the frame timing estimation, the starting edge of the packet was determined but within the packet symbol timing errors can be present. The cross-correlation of the known long training symbol and the received long ...
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FPGA Implementation of OFDM Transceiver using Verilog Hardware Description Language
... (FDM) technique used as a digital multi-carrier modulation ...(IFFT), Cyclic Prefix, Output Module, Inverse Cyclic Prefix, Fast Fourier Transform (FFT), Inverse Zero Padding, Inverse ...
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A Forward-Backward Kalman Filter-based Receiver
... Orthogonal frequency division multiplexing ( OFDM ) is a technique that enables high speed transmission over fre- quency selective channels with simple equalizers. It does this by creating a set of parallel ...
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Performance Analysis of MSE-OFDM System
... Mathematical models have been used to find the analytical solutions for the problems. First, the analysis has been done for the ideal case, where we assume that there is only AWGN noise in the channel and there is ...
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Design of Modified 64-Bit Parallel Prefix Technique B-K Adder
... parallel prefix networks explain the literature of parallel addition ...parallel prefix adders are Brent-kung, Kogge-stone, Brent-kung, Sklansky, ...
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Space Time Block Code in MIMO OFDM Cyclic Prefix Cancellation Schemes for Mitigating ICI L Rajeshwar Reddy & Belcy D Mathews
... Reproductions are directed to survey the BER execution of the ST-OFDM and STPC-OFDM plans with various coding rates and diverse number of transmission radio wires. The COST207 channel models are utilized. These 6-beam ...
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