Distributed scalar quantizers for noisy channels
2007 (English)In: 2007 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2007, 633-636 p.Conference paper (Refereed)
Sensor nodes in wireless sensor networks should preferable be both cheap and energy efficient. To cope with these requirements an algorithm for designing distributed scalar quantizers optimized for noisy channels is proposed and evaluated. Applying the algorithm results in locally optimal systems. It is demonstrated that the correlation between the sources can be used to reduce the quantization distortion when the channel is close to error-free. If, on the other hand, there are a lot of disturbances on the channel the correlation can be used to introduce protection against channel errors.
Place, publisher, year, edition, pages
2007. 633-636 p.
, International Conference on Acoustics Speech and Signal Processing (ICASSP), ISSN 1520-6149
multisensor systems, distributed estimation, quantization, joint source-channel coding
IdentifiersURN: urn:nbn:se:kth:diva-28992DOI: 10.1109/ICASSP.2007.366759ISI: 000248906600159ScopusID: 2-s2.0-34547509319OAI: oai:DiVA.org:kth-28992DiVA: diva2:395589
32nd IEEE International Conference on Acoustics, Speech and Signal Processing Honolulu, HI, APR 15-20, 2007
QC 201102072011-02-072011-01-252011-02-07Bibliographically approved