메뉴 건너뛰기
.. 내서재 .. 알림
소속 기관/학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
로그인 회원가입 고객센터 ENG
주제분류

추천
검색
질문

이용수

표지
📌
연구주제
📖
연구배경
🔬
연구방법
🏆
연구결과
AI에게 요청하기
추천
검색
질문

초록· 키워드

오류제보하기
In this paper. we have suggested a new method to analyze the error rate performance of the multi-level modulation system in Nakagami fading plus AWGN channel. For a verification of this method, we have derived and evaluated the error rate performance of BPSK and QPSK systems. From a comparison, we have confirmed that the error rate performance of BPSK and QPSK systems derived by a new method is identical to that of the conventional method. And the error rate performance of 16 QAM system in Nakagarni fading channel is almost identical with that of Rician fading charmel for same fading index. Therefore it is known that the new method is more reasonable than the conventional method in obtaining the error rate performance of multi-level modulation schemes in a fading environment. Also it is known that the error rate of 16 QAM system with non-diversity cannot be obtained 10^(-3) in m≤20 and the floor of error occurred in the high CNR region. So the 16 QAM system cannot be used normally without any compensation techniques. So 2-branch MRC diversity technique is introduced as a compensation technique and this technique gives a remarkable performance improvement in comparison to non-diversity. And as the fading index m increases, the degree of improvement becomes distinct.

목차

Abstract

Ⅰ. Introduction

Ⅱ. The probability density function of faded signal plus A WGN

Ⅲ. Error Probability of 16 QAM Signal and Performance Improvement

Ⅳ. Numerical Results and Discussions

Ⅴ. Conclusions

References

Appendix

저자소개

참고문헌 (0)

참고문헌 신청

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!

이 논문의 저자 정보

이 논문과 함께 이용한 논문

최근 본 자료

전체보기

댓글(0)

0

UCI(KEPA) : I410-ECN-0101-2009-569-017764306