Journal of the Korean Institute of Telematics and Electronics A (전자공학회논문지A)

The Institute of Electronics and Information Engineers (대한전자공학회)
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On the implementation of spectrum MODEM for wireless LAN

Spread Specturm 방식을 이용한 무선 LAN MODEM의 구현

  • 심복태 (삼성전자㈜ 기술총괄 ASIC센터) ;
  • 박종현 (삼성전자㈜ 산업전자사업부 무선통신그룹) ;
  • 박흥직 (삼성전자㈜ 기술총괄 ASIC센터) ;
  • 김제우 (수원대학교 정보통신공학과) ;
  • 김관옥 (삼성전자㈜ 기술총괄 ASIC센터)
  • Published : 1995.01.01
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Abstract

In this paper, a specification for wireless LAN MODEM using direct sequence spread spectrum (DS/SS) technique is presented. Some algorithms and hardware architectures for an efficient implementation of the DS/SS MODEM are suggested. In the method, all baseband signal processing are done digitally for single chip implementation. Schemes of DQPSK baseband modulation/demodulation, despreading with digital matched filter, digital timing recovery, and efficient carrier sensing are among the discussed algorithms. We also performed various kinds of simulations to evaluate the system performance and to extract parameters for hardware implementation. In addition, the pictorial view of ASIC of the SS MODEM is also shown.

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