Non-data-aided ML SNR estimation for AWGN channels with deterministic interference

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• 作者：Fangjiong Chen (1)
  Yabing Kang (1)
  Hua Yu (1)
  Fei Ji (1)
  
  1. School of Electronic and Information Engineering ; South China University of Technology ; Guangzhou ; 510640 ; China
  
• 关键词：SNR estimation ; Maximum likelihood estimation ; Non ; data aided estimation ; Cramer ; Rao bound
• 刊名：EURASIP Journal on Wireless Communications and Networking
• 出版年：2014
• 出版时间：December 2014
• 年：2014
• 卷：2014
• 期：1
• 全文大小：638 KB
• 参考文献：1. Chen, Y, Beaulieu, NC (2005) NDA estimation of SINR for QAM signals. IEEE Commun. Lett 9: pp. 688-690 CrossRef
  2. Chen, F, Ji, F, Cao, T, Xiong, S (2012) Maximum likelihood based measurement of interference level and noise power for memoryless gaussian channel with deterministic interference. IEEE Trans. Commun 60: pp. 19-22 CrossRef
  3. Yih, CH (2009) Analysis and compensation of DC offset in OFDM systems over frequency-selective rayleigh fading channels. IEEE Trans Vehicular Technol 58: pp. 3436-3446 CrossRef
  4. Wang, Z, Zhou, S, Catipovic, J, Willett, P (2012) Parameterized cancellation of partial-band partial-block-duration interference for underwater acoustic OFDM. IEEE Trans. Signal Process 60: pp. 1782-1795 CrossRef
  5. Merhav, N (1993) Universal decoding for memoryless Gaussian channels with a deterministic interference. IEEE Trans. Inform. Theory 39: pp. 1261-1269 CrossRef
  6. Zhao, Y, Wu, J, Lu, S (2011) Efficient SINR estimating with accuracy control in large scale cognitive radio networks. 2011 IEEE 17th International Conference on Parallel and Distributed Systems (ICPADS). IEEE Computer Society, Los Alamitos, CA, USA, pp. 549-556 CrossRef
  7. Sorooshyari, S, Tan, CW, Poor, HV (2010) On maximum-likelihood SINR estimation of MPSK in a multiuser fading channel. IEEE Trans. Vehicular Technol 59: pp. 4175-4181 CrossRef
  8. Gappmair, W (2008) Cramer-Rao lower bound for non-data-aided SNR estimation of linear modulation schemes. IEEE Trans. Commun 56: pp. 689-693 CrossRef
  9. Inamori, M, Bostamam, AM, Sanada, Y, Minami, H (2009) IQ imbalance compensation scheme in the presence of frequency offset and dynamic DC offset for a direct conversion receiver. IEEE Trans. Wireless Commun 8: pp. 2214-2220 CrossRef
  
• 刊物主题：Signal, Image and Speech Processing;
• 出版者：Springer International Publishing
• ISSN：1687-1499

文摘

Communication channels not only suffer from ambient noise but also from deterministic interference. In this paper, we consider signal-to-noise ratio (SNR) estimation in the presence of constant deterministic interference. A maximum likelihood (ML) non-data-aided algorithm is proposed for SNR estimation. We first consider a real-valued model and then extend this to a complex-valued model. The proposed algorithm applies an iterative approach initialized with approximate closed form estimates so as to guarantee stability and convergence. Furthermore, the Cramer-Rao bound (CRB) is also derived as the theoretical limit of the jitter variance. Computer simulations based on pulse-amplitude modulation (PAM) and quadrature amplitude modulation (QAM) sources show that the performance of the proposed algorithm is close to the CRB.