Proceedings of the Korean Society of Broadcast Engineers Conference (한국방송∙미디어공학회:학술대회논문집)

The Korean Institute of Broadcast and Media Engineers (한국방송∙미디어공학회)
권호 표지

ADAPTIVE CHANGE OF CODE RATE IN DS-SSMA COMMUNICATION SYSTEMS

  • Youngkwon-Ryu (WLL Research Lab., R/D Center, DACOM Co. Daejeon) ;
  • Jinsoo-Bae (Department of Electrical Engineering Korea Advanced Institute of Science and Technology(KAIST), Daejeon) ;
  • Iickho-Song (Department of Electrical Engineering Korea Advanced Institute of Science and Technology(KAIST), Daejeon)
  • Published : 1995.06.01

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Abstract

An adaptive code rate change scheme in DS-SSMA systems is proposed. In the proposed scheme, the error correcting code rate is changed according to the channel state, the effective number of users. The channel state is estimated based on retransmission requests. The criterion for the change of the code rate is to maximize the throughput under given error bound.

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