MPSK直交マルチキャリア伝送方式を用いたチャンネル符号法

12 References
  • HUANG Wei
    Prof. Nakagawa Lab. Electrical Engineering Department Keio University
  • NAKAGAWA Masao
    Prof. Nakagawa Lab. Electrical Engineering Department Keio University

Bibliographic Information

Other Title
  • Channel Coding with MPSK/Orthogonal Multi-Carrier Transmission

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Description

従来のシステムと同じ周波数帯域を使用すると仮定し、マルチキャリアトレリス符号システムを提案する。高速の直列信号列をP個の複数並列の低速信号列に変換することで、P個のサブキャリアの並列信号がえられる。さらに、スペクトルの重なった直交キャリアを用いたとき同じ帯域で、P/(2P-1)の符号化が可能である。そこで、本稿ではトレリス符号と直交マルチキャリアの結合によって、より高効率チャンネル符号の構成とその特性について調べる。
A channel coding combining convolutional coding and Mary-PSK/orthogonal multi-carrier transmission (MPSK/OMCT) is proposed which improves coding rate without more bandwidth. In the proposed system, the information data bits of bit interval T_s are serial to parallel converted to P parallel branches of bit interval of each branch T_p=PT_s. The parallel bits is encoded by a two steps convolutional encoder with rate nP/(n+1)(2P-1) and transmitted by an MPSK/OMCT (M=2^<n+1>). The proposed system corresponds to Ungerboeck's trellis coded modulation (TCM) atP=1, i.e., TCM with a single carrier transmission. At P>1, a more efficient coding rate can be obtained than a single carrier TCM. Following the discussion of a rate P/(2P-1) convolutional coding system with BPSK/OMCT, a general system performance analysis of TCM/OMCT is described.

Journal

  • Technical report of IEICE. SAT

    Technical report of IEICE. SAT 95 (160), 7-12, 1995-07-20

    The Institute of Electronics, Information and Communication Engineers

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Details 詳細情報について

  • CRID
    1574231877096427136
  • NII Article ID
    110003193321
  • NII Book ID
    AN10012987
  • Text Lang
    en
  • Data Source
    • CiNii Articles

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