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ETRI journal v.26 no.6, 2004년, pp.565 - 574  
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

An Efficient Scheme to Achieve Differential Unitary Space-Time Modulation on MIMO-OFDM Systems

Liu, Shou-Yin   (Department of Electrical & Computer Engineering, Hanyang UniversityUU0001519  ); Chong, Jong-Wha   (Department of Electrical & Computer Engineering, Hanyang UniversityUU0001519  );
  • 초록

    Differential unitary space-time modulation (DUSTM) has emerged as a promising technique to obtain spatial diversity without intractable channel estimation. This paper presents a study of the application of DUSTM on multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) systems with frequency-selective fading channels. From the view of a correlation analysis between subcarriers of OFDM, we obtain the maximum achievable diversity of DUSTM on MIMO-OFDM systems. Moreover, an efficient implementation strategy based on subcarrier reconstruction is proposed, which transmits all the signals of one signal matrix in one OFDM transmission and performs differential processing between two adjacent OFDM blocks. The proposed method is capable of obtaining both spatial and multipath diversity while reducing the effect of time variation of channels to a minimum. The performance improvement is confirmed by simulation results.


  • 주제어

    Space-time coding .   differential unitary space-time modulation (DUSTM) .   MIMO-OFDM systems.  

  • 참고문헌 (16)

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 저자의 다른 논문

  • Chong, Jongwha (86)

    1. 1982 "LSI의 Layout CAD에 있어서의 배선 혼잡도를 고려한 배치 문제" 電子工學會誌 = Journal of the Korean Institute of Electronics Engineers 19 (3): 19~27    
    2. 1984 "1차원 MOS-LSI 게이트 배열 알고리즘" 電子工學會誌 = Journal of the Korean Institute of Electronics Engineers 21 (4): 13~16    
    3. 1984 "LSI의 Layout CAD에 관한 연구 -자동 배치 프로그램 개발-" 電子工學會誌 = Journal of the Korean Institute of Electronics Engineers 21 (4): 72~77    
    4. 1984 "다층 LSI에 있어 Single-Row Routing Algorithm" 電子工學會誌 = Journal of the Korean Institute of Electronics Engineers 21 (4): 84~89    
    5. 1984 "Gate Array LSI의 레이아웃 설계에 있어 초기 배치 알고리즘" 電子工學會誌 = Journal of the Korean Institute of Electronics Engineers 21 (6): 85~93    
    6. 1984 "LSI의 심볼릭 레이아웃 CAD 기술에 관한 연구 동향" 電子工學會雜誌 = KIEE review 11 (1): 34~38    
    7. 1984 "CAD의 연구" 電子工學會雜誌 = KIEE review 11 (4): 24~27    
    8. 1984 "CAD 기술의 현황과 동향 -레이아웃-" 電子工學會雜誌 = KIEE review 11 (5): 25~30    
    9. 1985 "Gate Array의 Global Routing 기법" 電子工學會誌 = Journal of the Korean Institute of Electronics Engineers 22 (3): 60~67    
    10. 1989 "Place and Routing" 電子工學會誌 = The journal of Korea Institute of Electronics Engineers 16 (1): 24~30    

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