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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.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2012.1
- 수록면
- 59 - 66 (8page)
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초록· 키워드
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In a frequency selective fading channel, Pre-Rake diversity technique provides simple receiver structure and sufficient diversity effect for mobile terminals. However, conventional Pre-Rake systems are more severely affected than Rake systems with regard to multiple access interference since the number of multipaths received at the mobile unit is nearly twice that of the Rake systems. In order to overcome the problem, a Pre-Rake TDD-CDMA system using zero correlation duration (ZCD) spreading code is proposed. Modified ZCD codes including guard interval (GI) is also proposed and the performance is evaluated by computer simulation under the condition of various channel environment.
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참고문헌 (13)
참고문헌 신청
A. Mohsenian-Rad / 2011 / Pre-Equalization for Pre-Rake DS-UWB Systems with Spectral Mask Constraints / IEEE Trans. Commun 59 (3) : 780 ~ 791
D. Wu / 2006 / Adaptive rate QS-CDMA UWB systems using ternary OVSF codes with a zerocorrelationzone / Proc. IEEE WCNC 2006 2 : 1068 ~ 1073
E. Torabi / 2009 / Pre-equalization for MISO DS-UWB systems with pre-rake combining / IEEE Trans. Wireless Commun 8 (3) : 1295 ~ 1307
I. Jeong / 1998 / A Novel transmission diversity system in TDD-CDMA,” IEICE Trans. commun / IEICE Trans. commun 81 (7) : 1409 ~ 1416
J. Cha / 2000 / New binary sequences with zero-correlation duration for approximately synchronized CDMA / Electron.Lett 36 (11)
D. Wu / 2006 / Adaptive rate QS-CDMA UWB systems using ternary OVSF codes with a zerocorrelationzone / Proc. IEEE WCNC 2006 2 : 1068 ~ 1073
E. Torabi / 2009 / Pre-equalization for MISO DS-UWB systems with pre-rake combining / IEEE Trans. Wireless Commun 8 (3) : 1295 ~ 1307
I. Jeong / 1998 / A Novel transmission diversity system in TDD-CDMA,” IEICE Trans. commun / IEICE Trans. commun 81 (7) : 1409 ~ 1416
J. Cha / 2000 / New binary sequences with zero-correlation duration for approximately synchronized CDMA / Electron.Lett 36 (11)
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