Lebing Pan, Shiliang Xiao, Yunzhou Qiu, Ting Zhang, Baoqing Li
언어
영어(ENG)
URL
https://www.earticle.net/Article/A217365
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원문정보
초록
영어
Out-of-band (OOB) power emission is a conventional issue in orthogonal frequency division multiplexing (OFDM) system. The spectral leakage results in interference to licensed users (LU) in OFDM-based cognitive radio (CR) system. In this article, an adaptive precoding scheme based on the adaptive orthogonal projection matrix is proposed for OOB power suppression. Low complexity is the main feature of this preceding scheme. Simulation and analysis show that this method reduces the out-of-band power significantly by forcing the power spectrum density (PSD) of several frequency points in OOB to be zero. An advanced precoding scheme proposed later achieves a tradeoff between performance of OOB power suppression and bit error rate (BER) in the receiver. With those schemes, an adaptive precoder is proposed, which has three ways to adaptively adjust precoding matrix to achieve a balance among the complexity of system, the performance of out-of-band power reduction and BER in the receiver.
목차
Abstract 1. Introduction 2. System Model 3. Orthogonal Precoding Scheme 3.1. Precoding Scheme 3.2. Advanced Precoding Scheme 4. Adaptive Precoder 5. Performance of Precoding Scheme 5.1. The Position of Power Suppression Frequency Point 5.2. The Number of Suppression Frequency Points 5.3. BER in Receiver 5.4. Advanced Precoding Scheme 6. Conclusion References
키워드
AdaptivePrecodingOut-of-bandOFDM
저자
Lebing Pan [ Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Graduate University of Chinese Academy of Sciences, Beijing 100049, China ]
Shiliang Xiao [ Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Graduate University of Chinese Academy of Sciences, Beijing 100049, China ]
Yunzhou Qiu [ Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China ]
Ting Zhang [ Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China ]
Baoqing Li [ Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China ]
보안공학연구지원센터(IJFGCN) [Science & Engineering Research Support Center, Republic of Korea(IJFGCN)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of Future Generation Communication and Networking
간기
격월간
pISSN
2233-7857
수록기간
2008~2016
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Future Generation Communication and Networking Vol.7 No.1