Performance of Trellis coded 8PSK System in L/Ka-band Land Mobile Satellite Channel

L/Ka-band 육상 이동위성통신 채널에서 Trellis coded 8PSK 시스템의 성능

  • 이동훈 (대우통신(주) 차세대무선통신연구실) ;
  • 서종수 (연세대학교 공과대학 전기·컴퓨터공학과)
  • Published : 2000.02.01

Abstract

In this paper, the transmission channels of L-band and Ka-band multi-media satellite communication systems for the land mobile satellite(LMS) communication service are modeled. Trellis coded(TC) 8PSK is proposed as a power and bandwidth efficient digital transmission scheme for the LMS system, and its error probability performance is analyzed. Block interleaving and deinterleaving are applied to the transmitter and receiver of LMS system respectively in order to compensate for the BER performance degradation of TC-8PSK caused by multipath fading. Viterbi equalizer is also employed in the receiver for channel equalization, and the corresponding BER performance improvement is analyzed.

본 논문은 육상 이동통신 서비스를 위한 L-band 위성통신 시스댐과 Ka - band 멀티미디어 위성통신 시스템의 전송 채널을 모텔렁하고 전력 및 대역 효율적인 디지털 전송 방식으로 Trellis 부호화된 8PSK를 제안하고 그 성 능을 분석하였다. 특히. 다중경로 페이딩에 의한 TC-8PSK의 수선 BER 성능 열화를 보상하기 위하여 송수선단 에 각각 Block Interleaving과 Deinterleaving을 적용하였으며 채널 등화를 위해 수선단에 Viterbi 등화기를 적용 하였고 이에 따른 BER 성능 개선 정도를 분석하였다.

Keywords

References

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