Journal of Communications and Networks

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Multiple Access Interference Rejection Code: LS Code

  • Roh, Dong-Wook (Department of Electrical and Electronic Engineering Yonsei University) ;
  • Kim, Dong-Ku (Department of Electrical and Electronic Engineering Yonsei University)
  • Published : 2003.03.01
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Abstract

A new code, LS code, was proposed for the IMT-2000 CDMA system. The code has special properties during a specific time interval: 1) perfect autocorrelation, and 2) perfect crosscorrelation. Perfect autocorrelation means maximum autocorrelation for zero time-offset and zero autocorrelation for all other times during a specific time interval. Moreover, perfect crosscorrelation means that the crosscorrelation has zero value during a certain time, you can remove all the MAI within that time. However, the detailed properties of LS code and its exact generation method have been previously unknown. Therefore, we investigate the LS code in regards to its exact generating method, properties, and performances in this paper.

Keywords

References

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