제어로봇시스템학회:학술대회논문집

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Optimization of Blind Adaptive Decorrelating PIC Detector Performance in DS-CDMA System

  • Sirijiamrat, S. (Research Center for Communications and Information Technology (ReCCIT), and Department of Information Engineering, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang) ;
  • Benjangkaprasert, C. (Research Center for Communications and Information Technology (ReCCIT), and Department of Information Engineering, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang) ;
  • Sangaroon, O. (Research Center for Communications and Information Technology (ReCCIT), and Department of Information Engineering, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang)
  • Published : 2004.08.25
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Abstract

In this paper, the new algorithm for blind adaptive decorrelating parallel interference canceller detector in direct-sequence code division multiple access (DS-CDMA) synchronous communication systems is proposed. The goal of this paper is to improve the performance of the blind adaptive decorrelating parallel interference cancellation detector (BAD/PIC). The proposed blind adaptive decorrelating detector is using optimum step-size technique bootstrap algorithm as an initial stage of PIC, which does not require a training sequence. Therefore, this algorithm has a superior view of utilizing bandwidth and reduces the complexity of computation of inversion cross-correlation matrix. The computer simulation results show that the bit error rate performance of the proposed algorithm for the new structure of detector is better than that of the other detectors such as matched filters, the conventional PIC, and the blind adaptive decorrelating PIC detector.

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