Earticle

초록

영어

In the future, satellite communication systems, such as ISDB in Japan and DVB in Europe, are required to support higher transmission date rate for providing multimedia services including HDTV, high rate data communication etc. Considering the effectiveness of OFDM technique in efficient usage of frequency bandwidth and its robustness to the multi-path fading, several OFDM based standards have been proposed for satellite communication. However, the problem of high Peak to Average Power Ratio is one of the main obstacles for the implementation of OFDM based system. Many PAPR reduction schemes have been proposed for OFDM systems. Among these, the partial transmit sequences (PTS) is attractive as they obtain better PAPR property by modifying OFDM signals without distortion. In this paper, considering the complexity issue, we present a simplified minimum maximum (minimax) criterion and Sub-Optimal PTS algorithm to optimize the phase factor. This algorithm can be dynamically made tradeoff`f between performance and complexity on demand. In addition, we integrate guided scrambling (GS) with this method. Simulation in multiple antenna based OFDM system proves that the proposed Hybrid schemes can get much more PAPR reduction and do not require transmission of side information (SI). Thus it is helpful when implementing OFDM technique in satellite communication system.

목차

ABSTRACT
 1. Introduction
 2. Guided Scrambling
 3. The Proposed Method
  3.1. Sub-Optimal PTS
  3.2. Combined with GS Coding
 4. Results and Discussions
 5. Conclusions
 Acknowledgement
 Reference

키워드

저자

• Jae Moung Kim [ 김재명 | 종신회원, INHA-WiTLAB, INHA University ]
• Zibin Zhao [ 조자빈 | 준회원, Hua Wei Technologies Co., Ltd ]
• Haowei Li [ 이호위 | 준회원, INHA-WiTLAB, INHA University ]
• Sung Hwan Sohn [ 손성환 | 준회원, INHA-WiTLAB, INHA University ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국위성정보통신학회논문지 [Journal of Satellite, Information and Communications]

• 간기

  계간

• pISSN

  2384-3853

• 수록기간

  2006~2017

• 십진분류

  KDC 567 DDC 629