Blind noise variance and SNR estimation for OFDM systems based on information theoretic criteria

被引：15

作者：

Wang, Kun ^{[1
]}

Zhang, Xianda ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Automat, Tsinghua Natl Lab Informat Sci & Technol, Beijing 100084, Peoples R China

来源：

SIGNAL PROCESSING | 2010年 / 90卷 / 09期

基金：

中国国家自然科学基金;

关键词：

OFDM; Noise variance estimation; SNR estimation; MDL; AIC; SIGNALS;

D O I：

10.1016/j.sigpro.2010.03.007

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Blind noise variance and SNR estimators based on information theoretic criteria for orthogonal frequency division multiplexing (OFDM) systems are proposed in this paper. By using the redundancy induced by the cyclic-prefix, the unknown channel order is estimated via minimum length description (MDL) or Akaike information criterion (AIC), and the noise variance and SNR can be obtained subsequently. The proposed methods do not require any pilot symbols and therefore improve the spectrum efficiency. Simulation results are presented to highlight the benefit of the proposed algorithms compared with the other existing blind methods. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：2766 / 2772

页数：7

共 50 条

[31] An Improved Preamble-based SNR Estimation Algorithm for OFDM Systems
Zivkovic, Milan
Mathar, Rudolf
[J]. 2010 IEEE 21ST INTERNATIONAL SYMPOSIUM ON PERSONAL INDOOR AND MOBILE RADIO COMMUNICATIONS (PIMRC), 2010, : 172 - 176
[32] Joint Estimation of CFO and Channel in OFDM Systems with Blind Noise Statistics
Lim, Jaechan
[J]. IETE TECHNICAL REVIEW, 2017, 34 (05) : 491 - 503
[33] Improvement of source number estimation based on information theoretic criteria
Ye, Zhong-Fu
Xiang, Li
Xu, Xu
[J]. Dianbo Kexue Xuebao/Chinese Journal of Radio Science, 2007, 22 (04): : 593 - 598
[34] Blind Carrier Frequency Offset estimators based on variance for OFDM systems
Wu, Lu
Zhang, Xian-Da
Li, Pei-Sheng
[J]. 2007 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-14, 2007, : 3024 - 3027
[35] On the SNR-Optimal Null Subcarrier Placement for Blind Carrier Offset Estimation in OFDM Systems
Yan, Wu
Attallah, Samir
Bergmans, J. W. M.
[J]. GLOBECOM 2006 - 2006 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, 2006,
[36] Precise estimation of noise power and SNR from OFDM signals
20154301440038
[J]. (1) Communications and Internet Research Laboratory, ETRI (Electronics and Telecommunications Research Institute), Korea, Republic of, 1600, Korean Institute of Communications and Information Sciences (KICS) (IEEE Computer Society):
[37] INFORMATION THEORETIC CRITERIA IN NONPARAMETRIC DENSITY-ESTIMATION - BIAS AND VARIANCE IN THE INFINITE DIMENSIONAL CASE
ABRAHAMOWICZ, M
CIAMPI, A
[J]. COMPUTATIONAL STATISTICS & DATA ANALYSIS, 1991, 12 (02) : 239 - 247
[38] Precise Estimation of Noise Power and SNR from OFDM Signals
Kim, Jun-woo
Park, Hyeong-sook
Bang, Young-jo
Kim, Ilgyu
[J]. 2015 SEVENTH INTERNATIONAL CONFERENCE ON UBIQUITOUS AND FUTURE NETWORKS, 2015, : 367 - 371
[39] Blind SNR estimation based on cyclostationarity
PCN and SS Lab., USTC, Hefei 230027, China
[J]. Tongxin Xuebao, 2006, 9 (6-13):
[40] Minimum variance unbiased estimation of frequency offset in OFDM systems, a blind synchronization approach
Lashkarian, N
Kiaei, S
[J]. 2000 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, PROCEEDINGS, VOLS I-VI, 2000, : 2945 - 2948

← 1 2 3 4 5 →