Lattice-based source-channel coding in wireless sensor networks
2011 (English)In: IEEE International Conference on Communications (ICC), Kyoto, Japan, June 5-9, 2011, IEEE conference proceedings, 2011, 1-5 p.Conference paper (Refereed)
We consider the problem of gathering measurements in a wireless sensor network consisting of a large number of sensor nodes. A practical joint source–channel coding scheme is proposed and evaluated. The scheme uses lattices to extend apreviously proposed scheme to higher dimensions. The key ideais to use conventional point-to-point communication for a subset of the sensor nodes and side-information aware transmission for the remaining sensor nodes. The selection of sensors is based on their instantaneous channel quality. It is shown that by expanding from one to eight dimensions, a gain of about 1 dB is achievable. The overall transmission delay of the scheme is still very low and it is therefore suitable to use in delay-sensitive applications.
Place, publisher, year, edition, pages
IEEE conference proceedings, 2011. 1-5 p.
, IEEE International Conference on Communications, ISSN 1550-3607
Decoding, Lattices, Peer to peer computing, Signal to noise ratio, Source coding, Wireless sensor networks
IdentifiersURN: urn:nbn:se:kth:diva-33401DOI: 10.1109/icc.2011.5962670ISI: 000296057101091ScopusID: 2-s2.0-80052175014ISBN: 978-1-61284-232-5OAI: oai:DiVA.org:kth-33401DiVA: diva2:415065
IEEE International Conference on Communications (ICC) JUN 05-09, 2011 Kyoto, JAPAN
FunderSwedish Research Council, 621-2010-4428ICT - The Next Generation
© 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. QC 201201112012-01-112011-05-052012-06-13Bibliographically approved