지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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In multipath fading channel, diversity is essential to mitigate the impairments. In this paper, we have proposed the angle diversity scheme called ATTD(Angle Time Transmit Diversity) instead of Alamouti"s STTD(Space Time Transmit Diversity) and have analyzed the performance of the proposed scheme when signal powers caused by the transmission to different angles are different.
Based on it, we have measured the wireless vector-channel in the urban area, which has lots of high-story buildings, using the data collected from the 8 by 4 smart array antenna system that we made. According to the measured data, the received signals from different angles have different signal powers. Our performance analysis results show that the proposed scheme has better performance than the space diversity scheme when the received path signal power is at least -7dB compare to the strongest path signal power.
Based on it, we have measured the wireless vector-channel in the urban area, which has lots of high-story buildings, using the data collected from the 8 by 4 smart array antenna system that we made. According to the measured data, the received signals from different angles have different signal powers. Our performance analysis results show that the proposed scheme has better performance than the space diversity scheme when the received path signal power is at least -7dB compare to the strongest path signal power.
목차
Abstract
1. 서론
2. 공간-시간 송신 다이버시티
3. 각도-시간 송신다이버시티
4. 각도-시간 송신다이버시티
5. 도심환경에서 각도 다이버시티 신호측정 결과
6. 결론
감사의 글
참고문헌
참고문헌 (8)
참고문헌 신청
1. [학술대회논문] - S. Parkvall / 2000 / Transmit Diversity in WCDMA:Link and System Level Results / Proc. of VTC2000 : 864 ~ 868
2. [학술대회논문] - R. Wichman / 1999 / IMT-2000 Transmit Diversity Concepts / Proc. of PIMRC ’99 : 238 ~ 241
3. [학술지(정기간행물)] - S.M.Alamouti / 1998 / A Simple Transmit Diversity Technique for Wireless Communications / IEEE Journal on Select Area in CommunicationsCommunications.Vol.16,No.8,pp.1451-1458,Oct 16 (8) : 1451 ~ 1458
4. [기타자료] - 3rd Generation Partnership Project / 2005 / Physical channels and mapping of transport channels onto physical channels(FDD) / 3GPP Technical Specification,TS25.211,V6.5.0,Jun
5. [학술지(정기간행물)] - Patrick L. Perini / 1998 / Angle and Space Diversity Comparisons in Different Mobile Radio Environments / IEEE Trans. on Antennas and Propagation 46 (6) : 764 ~ 775
2. [학술대회논문] - R. Wichman / 1999 / IMT-2000 Transmit Diversity Concepts / Proc. of PIMRC ’99 : 238 ~ 241
3. [학술지(정기간행물)] - S.M.Alamouti / 1998 / A Simple Transmit Diversity Technique for Wireless Communications / IEEE Journal on Select Area in CommunicationsCommunications.Vol.16,No.8,pp.1451-1458,Oct 16 (8) : 1451 ~ 1458
4. [기타자료] - 3rd Generation Partnership Project / 2005 / Physical channels and mapping of transport channels onto physical channels(FDD) / 3GPP Technical Specification,TS25.211,V6.5.0,Jun
5. [학술지(정기간행물)] - Patrick L. Perini / 1998 / Angle and Space Diversity Comparisons in Different Mobile Radio Environments / IEEE Trans. on Antennas and Propagation 46 (6) : 764 ~ 775
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UCI(KEPA) : I410-ECN-0101-2013-560-001131393