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Performance Improvement of LeastSquares Adaptive Filter for High-Speed Train Communication Systems

Journal of ICT Research and Applications (JICTRA) · Vol. 11 No. 2 (2017) · pp. 151–167

DOI
10.5614/itbj.ict.res.appl.2017.11.2.3
ISSN
2338-5499, 2337-5787
Published
2017-08-31
Publisher
DRI - ITB
Language
eng

Abstract

The downlink communication channel from high-altitude platform (HAP) to high-speed train (HST) in the Ka-band is a slowly time-varying Rician distributed flat fading channel with 10-25 dB Rician K factor. In this respect, the received signal is mainly affected by the Doppler shift of the line-of-sight (LOS) link. In order to increase receiver performance, we propose to firstly compensate the Doppler shift of the received signal before least-squares (LS) adaptive filtering is pursued. Implementing the proposed method requires a priori knowledge of the time-varying phase of the LOS component. This is justified since signalling between the train and the controller exists such that the train velocity and location are predictable. Implementing the proposed method to the recursive LS (RLS) received beamforming algorithm shows reduction of mean square error (MSE) and bit error rate (BER).

Keywords

Collaboration network of the authors

23 authors · 49 co-authorship links · 6 across different organisations

Hover or tap a name to highlight its co-authors. Double-click to open the author's page.

  • Bandung Institute of Technology
  • State University of Jakarta
  • Indonesian Institute of Sciences
  • Affiliation unknown
  • Different organisations
  • Same organisation
  • Affiliation unknown
  • Thicker line = more joint articles · bigger circle = more articles
Show as table
Co-authorOrganisationJoint articles
Sugihartono SugihartonoBandung Institute of Technology3
Iskandar IskandarBandung Institute of Technology2
Hendrawan HendrawanBandung Institute of Technology2
Eko MarpanajiBandung Institute of Technology1
Armein Z. R. LangiBandung Institute of Technology1
Bamba Riyanto TrilaksonoAffiliation unknown1
Andri MahendraBandung Institute of Technology1
Thay LiungBandung Institute of Technology1
Rina Pudji AstutiBandung Institute of Technology1
Andriyan Bayu SuksmonoBandung Institute of Technology1
Prasetiyono Hari MuktiBandung Institute of Technology1
Baso MaruddaniState University of Jakarta1
Achmad MunirBandung Institute of Technology1
Salik MukhlishinBandung Institute of Technology1
Suyoto SuyotoIndonesian Institute of Sciences1
Sofia Naning HertianaBandung Institute of Technology1
Udjianna Sekteria PasaribuBandung Institute of Technology1
Istikmal IstikmalBandung Institute of Technology1
Nurain Izzati ShuhaimiBandung Institute of Technology1
Heriansyah HeriansyahBandung Institute of Technology1
Tutun JuhanaBandung Institute of Technology1

Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.

Metadata source: OAI-PMH (metadata jurnal) https://journals.itb.ac.id/index.php/jictra/oai, first harvested 26 Okt 2026, last seen 26 Okt 2026.
Original metadata (oai_dc) 
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	<dc:title xml:lang="en-US">Performance Improvement of LeastSquares Adaptive Filter for High-Speed Train Communication Systems</dc:title>
	<dc:creator>Zakia, Irma</dc:creator>
	<dc:creator>Kurniawan, Adit</dc:creator>
	<dc:subject xml:lang="en-US">adaptive beamforming</dc:subject>
	<dc:subject xml:lang="en-US">Doppler shift</dc:subject>
	<dc:subject xml:lang="en-US">high-altitude platform (HAP)</dc:subject>
	<dc:subject xml:lang="en-US">high-speed train (HST)</dc:subject>
	<dc:subject xml:lang="en-US">least-squares</dc:subject>
	<dc:subject xml:lang="en-US">line-of-sight (LOS)</dc:subject>
	<dc:subject xml:lang="en-US">Rician fading.</dc:subject>
	<dc:description xml:lang="en-US">The downlink communication channel from high-altitude platform (HAP) to high-speed train (HST) in the Ka-band is a slowly time-varying Rician distributed flat fading channel with 10-25 dB Rician K factor. In this respect, the received signal is mainly affected by the Doppler shift of the line-of-sight (LOS) link. In order to increase receiver performance, we propose to firstly compensate the Doppler shift of the received signal before least-squares (LS) adaptive filtering is pursued. Implementing the proposed method requires a priori knowledge of the time-varying phase of the LOS component. This is justified since signalling between the train and the controller exists such that the train velocity and location are predictable. Implementing the proposed method to the recursive LS (RLS) received beamforming algorithm shows reduction of mean square error (MSE) and bit error rate (BER).</dc:description>
	<dc:publisher xml:lang="en-US">DRI - ITB</dc:publisher>
	<dc:date>2017-08-31</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en-US">Peer-reviewed Article</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journals.itb.ac.id/index.php/jictra/article/view/2269</dc:identifier>
	<dc:identifier>10.5614/itbj.ict.res.appl.2017.11.2.3</dc:identifier>
	<dc:source xml:lang="en-US">Journal of ICT Research and Applications; Vol. 11 No. 2 (2017); 151-167</dc:source>
	<dc:source>2338-5499</dc:source>
	<dc:source>2337-5787</dc:source>
	<dc:source>10.5614/itbj.ict.res.appl.2017.11.2</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journals.itb.ac.id/index.php/jictra/article/view/2269/2842</dc:relation>
</oai_dc:dc>