Presentation 2005-05-20
Mitigation of Satellite Non-linear Distortion using PTS and IDAR Methods for QAM-OFDM System
Boonsrimuang Pisit, Katsuhiro Naito, Kazuo Mori, Hideo Kobayashi,
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Abstract(in English) The future satellite communication systems are required to support the higher transmission data rate for providing the multimedia services by employing the efficient modulation method such as multi-level QAM. The employment of single carrier transmission with multi-level QAM would cause the fatal degradation of signal quality due to the non-linear amplifiers located at the earth station and satellite. To overcome this problem, we have proposed the multi-level QAM-OFDM technique with IDAR (Improved Decision Aided Reconstruction) method designed for non-linear satellite channel. However, the proposed method could not mitigate the non-linear distortion sufficiently when modulation level becomes higher such as 64QAM. This paper proposes the combined scheme of partial transmission sequence (PTS) and OFDM-IDAR methods so as to enable the usage of higher multi-level QAM method, which can achieve the higher transmission data rate with keeping the better bit error rate performance in the non-linear satellite channel. The various computer simulations are conducted in this paper to verify the effectiveness of proposed method in the non-linear satellite channel.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Satellite channel / OFDM / PAPR / QAM / IDAR / PTS
Paper # SAT2005-3
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Committee SAT
Conference Date 2005/5/13(1days)
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Registration To Satellite Telecommunications (SAT)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Mitigation of Satellite Non-linear Distortion using PTS and IDAR Methods for QAM-OFDM System
Sub Title (in English)
Keyword(1) Satellite channel
Keyword(2) OFDM
Keyword(3) PAPR
Keyword(4) QAM
Keyword(5) IDAR
Keyword(6) PTS
1st Author's Name Boonsrimuang Pisit
1st Author's Affiliation Department of Electrical and Electronic Engineering, Faculty of Engineering Mie University()
2nd Author's Name Katsuhiro Naito
2nd Author's Affiliation Department of Electrical and Electronic Engineering, Faculty of Engineering Mie University
3rd Author's Name Kazuo Mori
3rd Author's Affiliation Department of Electrical and Electronic Engineering, Faculty of Engineering Mie University
4th Author's Name Hideo Kobayashi
4th Author's Affiliation Department of Electrical and Electronic Engineering, Faculty of Engineering Mie University
Date 2005-05-20
Paper # SAT2005-3
Volume (vol) vol.105
Number (no) 69
Page pp.pp.-
#Pages 6
Date of Issue