2024-03-29T13:07:00Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00006122
2023-01-16T03:50:48Z
320:502:503
Iterative Joint Channel-Decoding Scheme Using the Correlation of Transmitted Information Sequences in Sensor Networks
Kobayashi, Kentaro
Yamazato, Takaya
Okada, Hiraku
Katayama, Masaaki
open access
Copyright © 2006 IEEE. Reprinted from International Symposium on Information Theory and its Applications. 2006, p.808-813. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Nagoya University’s products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org.
In this study, we consider joint channel decoding of Turbo code for multiple correlated data that are observed by sensor nodes densely deployed in a sensor field. We focus on the correlation properties of observation data and try to reduce decoding error by an iterative procedure. An approach to use practical channel codes for more than two correlated data is still not presented. A problem in the extension to cases of more than two sensor nodes is how to use the information of correlation obtained from observation data. In this study, we propose an iterative channel decoding scheme that uses them with weighting. We show that when the number of sensor nodes is increased, decoding performance improvement cannot be achieved by simple weighting, and so a more appropriate weight is needed. We find the optimum weight that minimizes the bit error rate from the analytical formula for uncoded BPSK and apply it to the case of Turbo code.
IEEE
2006-10
eng
journal article
VoR
http://hdl.handle.net/2237/7755
https://nagoya.repo.nii.ac.jp/records/6122
https://doi.org/10.1109/ICC.1999.765445
4-902087-19-7
International Symposium on Information Theory and its Applications
808
813
https://nagoya.repo.nii.ac.jp/record/6122/files/ISITA06-2.pdf
application/pdf
921.8 kB
2018-02-19