Distributed Quantization over Noisy Channels
2009 (English)In: IEEE Transactions on Communications, ISSN 0090-6778, E-ISSN 1558-0857, Vol. 57, no 6, 1693-1700 p.Article in journal (Refereed) Published
The problem of designing simple and energyefficient sensor nodes in a wireless sensor network is considered from a joint source-channel coding perspective. An algorithm for designing distributed scalar quantizers for orthogonal channels is proposed and evaluated. In particular the cases of the binary symmetric channel as well as the additive white Gaussian noise channel are studied. It is demonstrated that correlation between sources can be useful in order to reduce quantization distortion as well as protecting data when being transmitted over nonideal channels. It is also demonstrated that the obtained system is robust against channel SNR mismatch.
Place, publisher, year, edition, pages
IEEE Communications Society , 2009. Vol. 57, no 6, 1693-1700 p.
Source coding, quantization, channel coding, correlation
IdentifiersURN: urn:nbn:se:kth:diva-8444DOI: 10.1109/TCOMM.2009.06.070482ISI: 000266990500026ScopusID: 2-s2.0-67650675055OAI: oai:DiVA.org:kth-8444DiVA: diva2:13768
QC 20100908. Uppdaterad från Accepted till Published (20100908)2008-11-272008-11-272011-12-27Bibliographically approved