alexa Cram´er- Rao Lower Bounds and Bayesian Cram´er- Rao
ISSN ONLINE(2278-8875) PRINT (2320-3765)

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering
Open Access

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Research Article

Cram´er- Rao Lower Bounds and Bayesian Cram´er- Rao Lower Bound Estimators for Blind Channel Estimation of SNR and Phase Noise

Mr. Sivanagaraju.V1, Dr. Siddaiah.P2
  1. Assoc.Prof, Dept of ECE, S.S.N College of Engineering and Technology, Ongole, A.P, India1
  2. Professor and Dean, Dept of ECE, University College of Engineering and Technology, Acharya Nagarjuna University, Guntur, A.P, India2
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Abstract

Channel Estimation is the process of characterizing the effect of the physical medium on the input sequence and Orthogonal Frequency division multiplexing (OFDM) Systems are especially suited for channel estimation. In this work we have designed a Cram´er- Rao Lower Bound estimation for blind channel estimator of SNR in OFDM systems. Phase Noise is a time varying process which changes the symbol from time to time and has a high deteriorating effect on higher order OFDM system. We have derived a Bayesian Cram´er- Rao Lower Bound Estimator for estimating phase noise.

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