About: Channel estimation method for OFDM in low SNR based on two-dimensional spreading

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In this paper, we present a channel estimation method based on two-dimensional signal spreading applicable to Orthogonal Frequency Multi- ple Access (OFDM) multicarrier systems. Our method exploits a spreading of a transmitted data signal as well as a pilot signal over the assigned fre- quency range and time period. As a spreading sequence we exploited orthog- onal Walsh-Hadamard sequences. When compared with traditional pilot symbol based channel estimation, our method is beneficial in low Signal to Noise Ratio (SNR). For a comparison of our method with state-of-the-art channel estimation method, we utilized an open source LTE downlink simulator developed at TU Vienna. This enables a reproducibility of our results. Considering the LTE system, our method outperforms the traditional approach in typical range of SNR from -5 dB to 10 dB. For a comparison of a throughput performance, a number of channel models has been employed. In this paper, we present a channel estimation method based on two-dimensional signal spreading applicable to Orthogonal Frequency Multi- ple Access (OFDM) multicarrier systems. Our method exploits a spreading of a transmitted data signal as well as a pilot signal over the assigned fre- quency range and time period. As a spreading sequence we exploited orthog- onal Walsh-Hadamard sequences. When compared with traditional pilot symbol based channel estimation, our method is beneficial in low Signal to Noise Ratio (SNR). For a comparison of our method with state-of-the-art channel estimation method, we utilized an open source LTE downlink simulator developed at TU Vienna. This enables a reproducibility of our results. Considering the LTE system, our method outperforms the traditional approach in typical range of SNR from -5 dB to 10 dB. For a comparison of a throughput performance, a number of channel models has been employed. (en)
Title	Channel estimation method for OFDM in low SNR based on two-dimensional spreading Channel estimation method for OFDM in low SNR based on two-dimensional spreading (en)
skos:prefLabel	Channel estimation method for OFDM in low SNR based on two-dimensional spreading Channel estimation method for OFDM in low SNR based on two-dimensional spreading (en)
skos:notation	RIV/00216305:26220/14:PU108679!RIV15-MSM-26220___
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(LD12006), S
http://linked.open...iv/cisloPeriodika	78
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Maršálek, Roman Prokeš, Aleš Blumenstein, Jiří Mecklenbräuker, Christoph
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoké učení technické v Brně / Fakulta elektrotechniky a komunikačních technologií
http://linked.open...dnocenehoVysledku	6857
http://linked.open...ai/riv/idVysledku	RIV/00216305:26220/14:PU108679
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Channel estimation, LTE, 2D signal spreading, OFDM (en)
http://linked.open.../riv/klicoveSlovo	OFDM 2D signal spreading LTE Channel estimation
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[E560C08EA32F]
http://linked.open...i/riv/nazevZdroje	WIRELESS PERSONAL COMMUNICATIONS
http://linked.open...in/vavai/riv/obor	JA
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Cooperative Radio Communications for Green Smart Environments
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	2014
http://linked.open...iv/tvurceVysledku	Maršálek, Roman Fedra, Zbyněk Prokeš, Aleš Blumenstein, Jiří Mecklenbräuker, Christoph
issn	0929-6212
number of pages	14 (xsd:int)
http://localhost/t...ganizacniJednotka	26220

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