Proceedings of the Korea Information Processing Society Conference (한국정보처리학회:학술대회논문집)
- 2002.04b
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- Pages.1239-1242
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- 2002
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- 2005-0011(pISSN)
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- 2671-7298(eISSN)
The study of a multi-carrier SSMA system with orthogonal time duration
연속적 직교시간구간을 갖는 다중반송파 대역확산다중접속기술에 관한 연구
- Cha, Jae-Sang (Dept. of Information and Communication, SeoKyeong University)
- 차재상 (서경대학교 정보통신공학과)
- Published : 2002.04.12
Abstract
In this paper, the implementation of MAI(multiple access interference)-cancelled SSMA(spread spectrum multiple access) system using orthogonal carriers was presented. Employing the pseudo periodic spreading codes and orthogonal carriers frequency offset, proposed system have the features no MAI during a certain local time-duration. Spreading signals designed by pseudo periodic method and repetition, have zero correlation duration(ZCD) by orthogonal frequency shift method. The SSMA modem has been designed and implemented using surface-acoustic-wave(SAW) device as the matched filter of receiver. The effects of frequency offset on stability have been evaluated using computer simulation.
Keywords