OFDM signal
Comparison of PAPR Reduction Companding Techniques of OFDM Signal
... original signal from the complex Gaussian to a desirable PDF defined as a linear piecewise ...of OFDM system regarding the reduction in PAPR, BER and out-of-band interference under the multipath fading ...
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CHILDREN TRACKING SYSTEM USING UHF RFID AND OFDM SIGNAL
... In practice, some of the users may locate in the communication range of associated mobile devices. Thus, the associated mobile devices directly transmit the data to the users in the long-distance range by using the ...
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Reduction of Peak to Average Power Ratio of OFDM Signals by Using a Weighted OFDM Signal Scheme
... system. OFDM allow the transmission of high data rates over broadband channel due to the spectral bandwidth efficiency, robustness to the multipath delay ...However OFDM signal are very sensitive to ...
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Effect of Cyclic Prefix on OFDM Signal
... To add Cyclic Prefix to the time domain data we got from input data sequence. Cyclic prefix generation is very straight forward; it is direct copy of some portion of data from the end and putting the copy at the ...
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Design and Quantization of FIR and IIR Filter for OFDM Signal
... Digital filters play a vital role in digital signal processing applications. When digital filters are implemented on a computer or with extraordinary reason equipment, each filter coefficient has to be represented ...
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MIMO OFDM signal optimization for SAR imaging radar
... with OFDM signals and to reduce the ghost ...the signal and to reduce this ghost effect. The use of OFDM- optimized solution couple achieves a better rejection of the ghost effect compared to the use ...
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Time-Efficient Genetic Algorithm for Peak Power Reduction of OFDM Signal
... analog signal, and then the signal is amplified and is fed to the transmission ...received OFDM signal, N samples Y e 0 , Y e 1 , · · · , Y e N − 1 are extracted ...
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R}educing PAPR of OFDM Signal using PTS and {COPTS
... A = the threshold set by the user for clipping the signal. The problem in this case is that due to amplitude clipping distortion is observed in the system which can be viewed as another source of noise. This ...
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Evaluation of Optimized PAPR and BER of OFDM signal by using Clipping and Filtering Technique
... in-band signal (aliasing) when the clipping is performed with the Ny-quist sampling rate in the discrete-time ...sampled OFDM signals ...the signal passes through a band-pass filter (BPF), the BER ...
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Evaluation of optimized PAPR of OFDM signal by using SLM technique
... OFDM has its major benefits of higher data rates and better performance. High data rates are achieved by the use of multiple carriers and performance improvement is caused by the use of guard interval thus ...
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Improved PAPR Reduction of OQAM-OFDM Signal Using Segmental PTS
... OQAM- OFDM signals into a number of segments, and then some disjoint subblocks are divided and multiplied with different phase rotation factors in each ...to OFDM systems, one of the major drawbacks in ...
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By Using Acf&Companding Transform for Reduction of Paper In Ofdm Signal
... the signal after PAPR reduction should conform to the spectral ...standardized OFDM systems as they call for major modifications in the physical layer ...
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Performance Evaluation Of Ofdm Signal Acf &Companding Transform For Papr Reduction
... convolution. OFDM is used to overcome the shortages of your unmarried-employer gearbox workout as regards to shooting wealthy objects ...one's OFDM attain contained within the claim of having a big ...
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Performance Evaluation Of Ofdm Signal Acf &Companding Transform For Papr Reduction
... for signal processing, then compensation methods would be required to reduce the effects of transients, Recent applications of commanding have been developing in the fields of analog and digital signal ...
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PAPR Reduction in OFDM Using Signal Scrambling Techniques
... efficiency. OFDM is a good candidate for CR because of its flexibility and ...adaptability.Though OFDM has a many advantages, one of the major challenge in the OFDM systems is that it suffers from ...
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Ofdm System Papr Reduction Using Pulse Shaping
... in OFDM wireless communication ...of OFDM signal), and discusses how to reduce it by different effective ...of OFDM signal), and discusses how to reduce it by different effective ...the ...
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Constant Envelope DCT based OFDM System with M-ary PAM Mapper over Fading Channels
... For the traveling-wave tube amplifier (TWTA) model, BER performance of CE-DCT-OFDM system is compared with that of DCT-OFDM system. The undesirable effects of TWTA nonlinearities can be re- duced by ...
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Review of SLM and Modified SLM Scheme for PAPR Reduction in OFDM System
... alternative OFDM signal sequences that causes high computational complexity because IFFT should be performed to generate each alternative OFDM signal ...
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PAPR REDUCTION TECHNIQUES IN OFDM
... H. Y. Sakran et al. (2008) proposed a combined interleaving method with peak windowing. This technique combines two basic PAPR reduction methods interleaving and windowing methods. The main advantage of the proposed ...
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Single Carrier Ofdm Immune to Intercarrier Interference
... received OFDM signal vectors in being a combination of subcarrier data symbols and shifted responses thereof, while the subcarrier data symbols in the SC-OFDM signal vector given by only ...
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