서지주요정보
학습 데이터를 이용하지 않는 선형 적응 MMSE 검파기를 이용한 DS/CDMA 시스템에서의 간섭 제거 = Suppression of interference in DS/CDMA systems using linear blind adaptive MMSE detector
서명 / 저자 학습 데이터를 이용하지 않는 선형 적응 MMSE 검파기를 이용한 DS/CDMA 시스템에서의 간섭 제거 = Suppression of interference in DS/CDMA systems using linear blind adaptive MMSE detector / 송국진.
저자명 송국진 ; Song, Kook-Jin
발행사항 [대전 : 한국과학기술원, 1997].
Online Access 비공개원문

소장정보

등록번호

8007764

소장위치/청구기호

학술문화관(문화관) 보존서고

MEE 97053

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

We consider multiuser interference suppression for direct-sequence spread-spectrum multiple-access (DS/CDMA) system without knowledge of other user's spreading waveforms using the minimum mean squared error (MMSE) performance criterion. The conventional MMSE detectors require training sequences for adaptive implementation. The previously proposed mean output energy (MOE) detector [1] using canonical representation requires no more knowledge than does the conventional single -user receiver: no more desired user's signature waveform and its timing. But this MOE detector's blind adaptive algorithm is so noisy as to perform worse than the conventional LMS algorithm with a training sequence. And the MOE detector's MMSE solution is greater than that of the conventional MMSE detectors. In this paper we propose an MOE detector with decision - feedback to improve upon the dynamics of the blind adaptive algorithm and an MMSE detector using new canonical representation which converges to the conventional MMSE detector without requiring training data sequences. The simulation results are given to verify that the performance of two new proposed detectors is better than that of the previous MOE detector. The simulation is also carried out with imprecise knowledge of the received signature waveform of the user of interest.

서지기타정보

서지기타정보
청구기호 {MEE 97053
형태사항 ii, 81 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Kook-Jin Song
지도교수의 한글표기 : 박동조
지도교수의 영문표기 : Dong-Jo Park
학위논문 학위논문(석사) - 한국과학기술원 : 전기및전자공학과,
서지주기 참고문헌 : p. 78-81
주제 대역확산 변조
간섭 제거
학습 데이터
최소평균자승오차
선형 검파기
DS/CDMA
Spread spectrum
Near-far problem
Blind detector
MMSE
QR CODE qr code