A Suitable Combination of Modulation and FEC Schemes for Satellite Digital Video Communication Networks
Summary :
This paper proposes a suitable combination of the digital modulation schemes and the coding-rate of forward error correction (FEC) schemes for satellite digital video communication networks. The comparative study is carried out by computer simulation considering non-linearly amplified, narrow bandwidth satellite channels with adjacent channel interference signals. The proposed system employs an offset QPSK modulation scheme supported by the coding-rate of 7/8 convolutional encoding and Viterbi decoding to realize high-quality and compact spectrum characteristics in non-linear channels. By employing a 32Mbps DPCM video codec, the developed prototype system achieves a post demodulated S/N ratio of higher than 52dB. Moreover, it achieves high protection ratio against co-channel interference than conventional analog FM systems. The optimized digital video transmission system makes it possible to transmit high-quality NTSC video signals over non-linearly amplified narrow bandwidth satellite channels, for example 27MHz or 36MHz bandwidth transponders, with high-security digital encryption.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E76-B No.5 pp.497-507
- Publication Date
- 1993/05/25
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- Special Section PAPER (Special Issue on Satellite Communications Networking and Applications)
- Category
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Shuji KUBOTA, Masahiro MORIKURA, Kiyoshi ENOMOTO, Shuzo KATO, "A Suitable Combination of Modulation and FEC Schemes for Satellite Digital Video Communication Networks" in IEICE TRANSACTIONS on Communications,
vol. E76-B, no. 5, pp. 497-507, May 1993, doi: .
Abstract: This paper proposes a suitable combination of the digital modulation schemes and the coding-rate of forward error correction (FEC) schemes for satellite digital video communication networks. The comparative study is carried out by computer simulation considering non-linearly amplified, narrow bandwidth satellite channels with adjacent channel interference signals. The proposed system employs an offset QPSK modulation scheme supported by the coding-rate of 7/8 convolutional encoding and Viterbi decoding to realize high-quality and compact spectrum characteristics in non-linear channels. By employing a 32Mbps DPCM video codec, the developed prototype system achieves a post demodulated S/N ratio of higher than 52dB. Moreover, it achieves high protection ratio against co-channel interference than conventional analog FM systems. The optimized digital video transmission system makes it possible to transmit high-quality NTSC video signals over non-linearly amplified narrow bandwidth satellite channels, for example 27MHz or 36MHz bandwidth transponders, with high-security digital encryption.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e76-b_5_497/_p
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@ARTICLE{e76-b_5_497,
author={Shuji KUBOTA, Masahiro MORIKURA, Kiyoshi ENOMOTO, Shuzo KATO, },
journal={IEICE TRANSACTIONS on Communications},
title={A Suitable Combination of Modulation and FEC Schemes for Satellite Digital Video Communication Networks},
year={1993},
volume={E76-B},
number={5},
pages={497-507},
abstract={This paper proposes a suitable combination of the digital modulation schemes and the coding-rate of forward error correction (FEC) schemes for satellite digital video communication networks. The comparative study is carried out by computer simulation considering non-linearly amplified, narrow bandwidth satellite channels with adjacent channel interference signals. The proposed system employs an offset QPSK modulation scheme supported by the coding-rate of 7/8 convolutional encoding and Viterbi decoding to realize high-quality and compact spectrum characteristics in non-linear channels. By employing a 32Mbps DPCM video codec, the developed prototype system achieves a post demodulated S/N ratio of higher than 52dB. Moreover, it achieves high protection ratio against co-channel interference than conventional analog FM systems. The optimized digital video transmission system makes it possible to transmit high-quality NTSC video signals over non-linearly amplified narrow bandwidth satellite channels, for example 27MHz or 36MHz bandwidth transponders, with high-security digital encryption.},
keywords={},
doi={},
ISSN={},
month={May},}
Copy
TY - JOUR
TI - A Suitable Combination of Modulation and FEC Schemes for Satellite Digital Video Communication Networks
T2 - IEICE TRANSACTIONS on Communications
SP - 497
EP - 507
AU - Shuji KUBOTA
AU - Masahiro MORIKURA
AU - Kiyoshi ENOMOTO
AU - Shuzo KATO
PY - 1993
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E76-B
IS - 5
JA - IEICE TRANSACTIONS on Communications
Y1 - May 1993
AB - This paper proposes a suitable combination of the digital modulation schemes and the coding-rate of forward error correction (FEC) schemes for satellite digital video communication networks. The comparative study is carried out by computer simulation considering non-linearly amplified, narrow bandwidth satellite channels with adjacent channel interference signals. The proposed system employs an offset QPSK modulation scheme supported by the coding-rate of 7/8 convolutional encoding and Viterbi decoding to realize high-quality and compact spectrum characteristics in non-linear channels. By employing a 32Mbps DPCM video codec, the developed prototype system achieves a post demodulated S/N ratio of higher than 52dB. Moreover, it achieves high protection ratio against co-channel interference than conventional analog FM systems. The optimized digital video transmission system makes it possible to transmit high-quality NTSC video signals over non-linearly amplified narrow bandwidth satellite channels, for example 27MHz or 36MHz bandwidth transponders, with high-security digital encryption.
ER -
English
