Channel Parameters Estimation Algorithm Based on The Characteristic Function under Impulse Noise Environment

Under communication environments, such as wireless sensor networks, the noise observed usually exhibits impulsive as well as Gaussian characteristics. In the initialization of channel iterative decoder, such as low density parity check codes, it is required in advance to estimate the channel paramet...

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Main Authors:	Z. J. Xu, K. Wang, L. M. Meng
Format:	Article
Language:	English
Published:	Spolecnost pro radioelektronicke inzenyrstvi 2013-12-01
Series:	Radioengineering
Subjects:	Parameter estimation impulsive noise symmetric alpha stable distribution characteristic function
Online Access:	http://www.radioeng.cz/fulltexts/2013/13_04_1034_1040.pdf

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spelling	doaj-fdc73f0b80984d02965d584c4946849b2020-11-24T22:46:46ZengSpolecnost pro radioelektronicke inzenyrstviRadioengineering1210-25122013-12-0122410341040Channel Parameters Estimation Algorithm Based on The Characteristic Function under Impulse Noise EnvironmentZ. J. XuK. WangL. M. MengUnder communication environments, such as wireless sensor networks, the noise observed usually exhibits impulsive as well as Gaussian characteristics. In the initialization of channel iterative decoder, such as low density parity check codes, it is required in advance to estimate the channel parameters to obtain the prior information from the received signals. In this paper, a blind channel parameters estimator under impulsive noise environment is proposed, which is based on the empirical characteristic function in MPSK/MQAM higher-order modulation system. Simulation results show that for various MPSK/MQAM modulations, the estimator can obtain a more accurate unbiased estimation even though we do not know which kind of higher-order modulation is used.www.radioeng.cz/fulltexts/2013/13_04_1034_1040.pdfParameter estimationimpulsive noisesymmetric alpha stable distributioncharacteristic function
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Z. J. Xu K. Wang L. M. Meng
spellingShingle	Z. J. Xu K. Wang L. M. Meng Channel Parameters Estimation Algorithm Based on The Characteristic Function under Impulse Noise Environment Radioengineering Parameter estimation impulsive noise symmetric alpha stable distribution characteristic function
author_facet	Z. J. Xu K. Wang L. M. Meng
author_sort	Z. J. Xu
title	Channel Parameters Estimation Algorithm Based on The Characteristic Function under Impulse Noise Environment
title_short	Channel Parameters Estimation Algorithm Based on The Characteristic Function under Impulse Noise Environment
title_full	Channel Parameters Estimation Algorithm Based on The Characteristic Function under Impulse Noise Environment
title_fullStr	Channel Parameters Estimation Algorithm Based on The Characteristic Function under Impulse Noise Environment
title_full_unstemmed	Channel Parameters Estimation Algorithm Based on The Characteristic Function under Impulse Noise Environment
title_sort	channel parameters estimation algorithm based on the characteristic function under impulse noise environment
publisher	Spolecnost pro radioelektronicke inzenyrstvi
series	Radioengineering
issn	1210-2512
publishDate	2013-12-01
description	Under communication environments, such as wireless sensor networks, the noise observed usually exhibits impulsive as well as Gaussian characteristics. In the initialization of channel iterative decoder, such as low density parity check codes, it is required in advance to estimate the channel parameters to obtain the prior information from the received signals. In this paper, a blind channel parameters estimator under impulsive noise environment is proposed, which is based on the empirical characteristic function in MPSK/MQAM higher-order modulation system. Simulation results show that for various MPSK/MQAM modulations, the estimator can obtain a more accurate unbiased estimation even though we do not know which kind of higher-order modulation is used.
topic	Parameter estimation impulsive noise symmetric alpha stable distribution characteristic function
url	http://www.radioeng.cz/fulltexts/2013/13_04_1034_1040.pdf
work_keys_str_mv	AT zjxu channelparametersestimationalgorithmbasedonthecharacteristicfunctionunderimpulsenoiseenvironment AT kwang channelparametersestimationalgorithmbasedonthecharacteristicfunctionunderimpulsenoiseenvironment AT lmmeng channelparametersestimationalgorithmbasedonthecharacteristicfunctionunderimpulsenoiseenvironment
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Channel Parameters Estimation Algorithm Based on The Characteristic Function under Impulse Noise Environment

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