Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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ADAPTIVE SLIDING WINDOW METHOD FOR TURBO CODES IN CDMA CELLULAR SYSTEM WITH POWER CONTROL ERROR

  • Park, Sook-Min (Dept. of E.E., Korea Advanced Institute of Science and Technology) ;
  • Yoon, Sang-Sic (Dept. of E.E., Korea Advanced Institute of Science and Technology) ;
  • Kim, Sang-Wu (Dept. of E.E., Korea Advanced Institute of Science and Technology) ;
  • Lee, Kwyro (Dept. of E.E., Korea Advanced Institute of Science and Technology)
  • Published : 2003.07.01
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Abstract

This paper presents a method that can be used to reduce the decoding computational complexity in turbo codes. To reduce the decoding complexity we proposed an adaptive sliding window method which control the learning period of Viterbi sliding window method depending on channel signal to interference ratio (SIR). When received signal to interference ratio (SIR) is relatively high, we can reduce the decoding complexity without a noticeable degradation of BER performance at CDMA cellular system with power control error.

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