Paper Abstract and Keywords |
Presentation |
2006-03-17 11:10
Improvement of Water Fall region characteristics of serially concatenated trellis-coded modulation Daisuke Kobayashi, Toshiyuki Shohon, Haruo Ogiwara (Nagaoka Univ. of Tech.) |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
We propose a new system structure which improve the Water Fall region characteristics of serially concatenated trellis-coded modulation (SCTCM). The conventional system of the SCTCM cannot obtain the coding gain due to the code rate of the inner encoder is equal to 1. Therefore, the proposed system adds the puncutre to the output of the outer encoder, and redueces the code rate of the inner encoder. Thus, the proposed system is able to obtain the coding gain of the inner encoder, and the proposed system is expected to improve the lower ${\rm E_{b}/N_{0}}$ region characteristics. Amount of improvement of Water Fall region characteristics changes by the puncture of the output of the outer encoder. Then, we propose a search method for optimum pattern which improves the Water Fall region characteristics significantly. The optimum pattern of the proposed system is obtained 0.75[dB] improvement of the Water Fall region characteristics comaperd with conventional system of SCTCM at BER $10^{-4}$. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
SCTCM / Water Fall region / / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 105, no. 662, IT2005-125, pp. 177-182, March 2006. |
Paper # |
IT2005-125 |
Date of Issue |
2006-03-10 (IT, ISEC, WBS) |
ISSN |
Print edition: ISSN 0913-5685 |
Download PDF |
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Conference Information |
Committee |
WBS IT ISEC |
Conference Date |
2006-03-16 - 2006-03-17 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Nagoya Univ. |
Topics (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
IT |
Conference Code |
2006-03-WBS-IT-ISEC |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Improvement of Water Fall region characteristics of serially concatenated trellis-coded modulation |
Sub Title (in English) |
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SCTCM |
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Water Fall region |
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1st Author's Name |
Daisuke Kobayashi |
1st Author's Affiliation |
Nagaoka University of Technology (Nagaoka Univ. of Tech.) |
2nd Author's Name |
Toshiyuki Shohon |
2nd Author's Affiliation |
Nagaoka University of Technology (Nagaoka Univ. of Tech.) |
3rd Author's Name |
Haruo Ogiwara |
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Nagaoka University of Technology (Nagaoka Univ. of Tech.) |
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Speaker |
Author-1 |
Date Time |
2006-03-17 11:10:00 |
Presentation Time |
25 minutes |
Registration for |
IT |
Paper # |
IT2005-125, ISEC2005-182, WBS2005-139 |
Volume (vol) |
vol.105 |
Number (no) |
no.662(IT), no.664(ISEC), no.666(WBS) |
Page |
pp.177-182 |
#Pages |
6 |
Date of Issue |
2006-03-10 (IT, ISEC, WBS) |
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