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Power constrained channel optimized vector quantizers used for bandwidth expansion
KTH, School of Electrical Engineering (EES), Communication Theory.
2007 (English)In: Proceedings of 4th IEEE Internatilonal Symposium on Wireless Communication Systems 2007, ISWCS, New York: IEEE , 2007, 667-671 p.Conference paper (Refereed)
Abstract [en]

This paper deals with algorithms for determining well performing bandwidth expanding joint source-channel coding (JSCC) systems. The JSCC systems are realized as direct source-channel mappings. The algorithms presented are "Power Constrained Channel Optimized Vector Quantizers" (PCCOVQ). The PCCOVQ algorithm is a modified generalized Lloyd algorithm. Theory on PCCOVQ is presented, with the emphasis on bandwidth expansion. Examples and results concerning bandwidth expansion by a factor of 2 and 3 are given.

Place, publisher, year, edition, pages
New York: IEEE , 2007. 667-671 p.
Keyword [en]
(e, 2e) theory, Bandwidth expansion (BWE), Generalized Lloyd algorithm (GLA), International symposium, Joint source-channel coding (JSCC) systems, Source channels, vector quantizers, wireless communication systems, Bandwidth, Boolean functions, Cellular telephone systems, Channel coding, Codes (symbols), Communication, Communication systems, Constrained optimization, Global system for mobile communications, Mobile computing, Optimization, Programming theory, Technical presentations, Telecommunication, Vector quantization, Vectors, Telecommunication systems
National Category
Telecommunications Electrical Engineering, Electronic Engineering, Information Engineering
URN: urn:nbn:se:kth:diva-141809DOI: 10.1109/ISWCS.2007.4392424ISI: 000253415800024ScopusID: 2-s2.0-84890859653ISBN: 978-142440979-2ISBN: 1424409799OAI: diva2:698814
4th IEEE International Symposium on Wireless Communication Systems 2007, ISWCS'07; Trondheim; Norway; 16 October 2007 through 19 October 2007

QC 20140225

Available from: 2014-02-25 Created: 2014-02-25 Last updated: 2014-02-25Bibliographically approved

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