[Paper] Efficient Channel Estimation Scheme under Impulsive Noise Environment

  title={[Paper] Efficient Channel Estimation Scheme under Impulsive Noise Environment},
  author={Hirotomo Yasui and Akira Nakamura and Makoto Itami},
  journal={Multimedia Tools and Applications},
1 Citations

Research and Implementation of Channel Estimation Algorithm Based on Wideband Micro-power System

The channel estimation algorithm is improved according to the frame structure characteristics of wideband micro-power to show that the algorithm has low algorithm complexity, small hardware resources, and the estimation accuracy meets the expectations and meets the application requirements.



Impulse burst position detection and channel estimation schemes for OFDM systems

The purpose of this paper is to present an enhanced channel estimation scheme for the standard method to overcome its sensitivity to the time frequency selective channel estimates.

Adaptive Noise Mitigation in Impulsive Environment: Application to Power-Line Communications

A proposal for impulse statistics estimation under severe conditions (i.e., for very rare impulse events, based on impulse detection over corrupted OFDM symbols) is made and a general scheme of automatic impulse mitigation is proposed, according to the disturbance ratio of the environment.

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In this paper, we analyze and compare the performance of OFDM receivers with blanking, clipping and combined blanking-clipping nonlinear preprocessors in the presence of impulsive noise. Closed-form

Performance analysis and optimization of OFDM receiver with blanking nonlinearity in impulsive noise environment

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Close form analytical expressions for the signal-to-noise ratio at the output of blanking nonlinearity and the optimal blanking threshold that maximizes SNR are derived and Simulation results are provided that show good agreement with theory if the number of OFDM subcarriers is sufficiently large.

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Simple approximate methods as well as various more precise, analytical procedures for determining the first-order parameters of both the approximate and exact Class A and B noise models are derived

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Redundancy in the transmitted samples was found and exploited to mitigate the impulsive noise by replacing the corrupted samples, and the proposed technique is efficient with low probability of impulse occurrence.

Successive impulsive noise suppression in OFDM

The iterative receiver design is extended to enable a fast convergence for N ≫ 64 and to improve the error rate performance for N ≤ 64 and includes a novel low complexity syndrome decoder which uses the redundancy that is transmitted for synchronization or other purposes.

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In OFDM transmission, performance is degraded by the existence of time domain impulse noise because this noise has very wide bandwidth, and it affects all the carriers in the OFDM signal. Especially,