Shahid Manzoor, Varun Jeoti, Nidal Kamel, Muhammad Asif Khan
언어
영어(ENG)
URL
https://www.earticle.net/Article/A167026
※ 원문제공기관과의 협약기간이 종료되어 열람이 제한될 수 있습니다.
원문정보
초록
영어
A novel front-end noise power and SNR estimation technique based on one OFDM preamble is proposed and compared with previously published SNR estimators – none of which are front-end estimators. This paper is extended and expanded version of our previous work. It provides complete mathematics and discussion of designed algorithms for front end SNR estimation. The proposed technique is divided into two parts. In the first part, SNR estimation technique for AWGN channel and wireless multipath channels is considered. In the second part, the proposed estimator takes into consideration the different noise power levels over the OFDM sub-carriers. The OFDM band is divided into several sub-bands using wavelet packet decomposition and noise in each sub-band is considered white. The second-order statistics of the transmitted OFDM preamble are calculated in each sub-band and the noise power is estimated. The proposed estimator in first part is compared with Reddy estimator and Subspace based estimator for AWGN channel in terms of normalized mean square error and in the second part it is compared with Reddy’s estimator for colored noise in terms of mean square error (MSE). It is observed that current estimator gives better SNR estimates than Reddy and subspace estimators and can estimate local statistics of the noise power when the noise is colored.
목차
Abstract 1. Introduction 2. SNR Estimation Algorithms 2.1 Reddy SNR Estimation 2.2. Subspace Based SNR Estimation 3. Proposed SNR Estimation Technique 3.1 First Part: Front-End Noise Power and SNR Estimation Technique for AWGN Channel and Multipath Channels 3.2 Second Part: Front-End Noise Power and SNR Estimation of Colored Noise Using Wavelet-Packet 4. Results and Discussion 5. Conclusion References
키워드
Noise power estimatorSNR estimationAdaptive modulationOFDM
저자
Shahid Manzoor [ Universiti Teknologi Petronas (UTP), Malaysia ]
Varun Jeoti [ Universiti Teknologi Petronas (UTP), Malaysia ]
Nidal Kamel [ Universiti Teknologi Petronas (UTP), Malaysia ]
Muhammad Asif Khan [ Universiti Teknologi Petronas (UTP), Malaysia ]
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.4 No.4