SNR estimation
Receiver based Rate Adaptation Approach through Blind SNR Estimation of Satellite Channel
... estimated SNR values which are derived periodically from the baseband, sampled, data- bearing received ...channel SNR and BER of HR signal ...of SNR as a performance measure for such hierarchically ...
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Fuzzy logic based Adaptive Modulation Using Non Data Aided SNR Estimation for OFDM system
... Aided SNR Estimation Proposed in [19] proposed by ...Aided SNR estimation algorithm for QAM signals is derived based on a statistical ratio of observables over a block of data The ...
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SNR estimation using extended kalman filter technique for orthogonal frequency division multiplexing (OFDM) system
... The SNR estimation technique presented by Xiadong, ...true SNR accurately after an observation interval of about 20 OFDM symbols for various fading ...
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Non data aided ML SNR estimation for AWGN channels with deterministic interference
... Figure 2 shows the estimation performance under differ- ent sample sizes. It can be observed that the proposed ML estimator results in almost identical performance to the CRB. We therefore argue that tens of ...
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An adaptive low power LDPC decoder using SNR estimation
... In this article, we propose a novel adaptive parity-check decoding scheme based on SNR estimation. Our pro- posed scheme does not require any additional hardware. We observe that the iteration count until ...
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Dynamic voltage and frequency scaling scheme for an adaptive LDPC decoder using SNR estimation
... the SNR values, we obtained the set of operating frequencies and supply voltage levels for which the proposed decoder would operate to satisfy the throughput requirement of the CMMB ...For SNR values ...
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Algorithm for SNR Estimation In Rician Fading Channels
... --------------------------------------------------------------------ABSTRACT-------------------------------------------------------------- Orthogonal frequency division multiplexing provides strong robustness against ...
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EFFICIENT SNR ESTIMATION IN OFDM SYSTEM
... mean SNR estimate performance of ideal and experimental value for proposed SNR estimation method in 16QAM-OFDM ...level, estimation error is ...
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A priori SNR estimation and noise estimation for speech enhancement
... priori SNR estima- tion, the DD approach has a relatively acceptable per- formance with low computational ...smooth estimation of a priori ...priori SNR. What is more, the con- vergence rate of ...
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Application of a joint and iterative MMSE based estimation of SNR and frequency selective channel for OFDM systems
... joint estimation of signal-to-noise ratio (SNR) and frequency-selective channel in an orthogonal frequency division multiplexing (OFDM) ...the SNR thanks to the MMSE criterion and the channel ...
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A modified Wiener filtering method combined with wavelet thresholding multitaper spectrum for speech enhancement
... A block diagram of the proposed SE algorithm is shown in Figure 1. The initial four frames are assumed to be noise only. The algorithm can be described as follows. The input noisy speech signal is decomposed into frames ...
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An adaptive a priori SNR estimator for perceptual speech enhancement
... priori SNR estimation employing critical band processing is ...priori SNR estimation to achieve faster tracking when SNR ...proposed SNR estimator provides a means to solve this ...
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Energy Efficient Vector OFDM PLC Systems with Dynamic Peak Based Threshold Estimation
... high SNR properties of VOFDM and DPTE respectively, this paper demonstrated that transmit power can be reduced by about ...output SNR of the blanker is increased by ...
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SNR walls in eigenvalue based spectrum sensing
... an SNR value below which a detector cannot perform robustly no matter how many observations are ...an SNR wall for the maximum-minimum-eigenvalue (MME) ...this SNR wall and evaluate it for example ...
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SNR . The proposed algorithms provide better results
... G SNR decrease with SNR In , the system has an overall tendency to not to remove the noise when SNR In is strong and especially for the NS-FRLS ...
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2-D angle of arrival estimation using a one-dimensional antenna array
... named Estimation of 2-D Angle of arrival using Reduced antenna array dimension ...AOA estimation is possible using antenna arrays of reduced size and with a minimum of two elements only, which is very ...
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SNR Improvement for monochrome detector using binning
... so SNR of our system is very low. So to improve SNR of detector we have done some ...of SNR; in section III we have covered binning concept and how it will improve ...
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Power Distribution and BER in Indoor VLC with PPM Based Modulation Schemes: A Comparative Study
... Figure 4(b) shows the error performance of SC-L-PPM. It indicates that, at a nominated BER value, increasing L from 2 to 8 results in decreasing SNR. Moreover, fixing the value of L will enhance BER performance by ...
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Improved Spectrum Sensing Technique using Multiple Energy Detectors for Cognitive Radio Networks
... To improve the spectrum sensing performance of CR networks we have presented an Improved Spectrum Sensing technique using Multiple Energy Detectors for Cognitive Radio Networks. Performance is measured in terms of ...
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Near Instantaneously Adaptive Cooperative Schemes based on Space Time Block Codes and V BLAST
... averaged over the remaining three users drops further below a cer- tain threshold, the cluster drops another user and the BS provides this user with a dedicated channel for his/her communication. This process is ...
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