DOIONLINE 
DOIONLINE Publish In |
International Journal of Industrial Electronics and Electrical Engineering (IJIEEE)-IJIEEE |
 Journal Home Volume Issue |
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Issue |
Volume-5,Issue-6 ( Jun, 2017 ) | |||||||||
Paper Title |
Maximum a Posteriori Based Iterative Channel Estimation for OFDM Systems | |||||||||
Author Name |
G. Madhu, C. Ravi Shankar Reddy | |||||||||
Affilition |
PG Scholar, Lecturer, Dept. of ECE, JNTUCEA, Anantapur, Andhra Pradesh, India | |||||||||
Pages |
10-15 | |||||||||
Abstract |
This paper investigate the Iterative Channel Estimation for Orthogonal Frequency Division Multiplexing over wireless channels. Iteration Channel Estimation utilizes data symbol estimates to improve the channel estimation performance. Maximum A Posteriori approach provides the optimum Iterative Channel Estimation for the OFDM system. The Maximum A Posteriori based Iterative Channel Estimation performs well over threshold controlled based Iterative Channel Estimation at low and mid range of SNR. The Maximum A Posteriori based Iterative Channel Estimation has converged within one iteration for a high SNR. If SNR is low, this approach yields a little performance improvement for next iterations. Index Terms - OFDM, iterative channel estimation, EM algorithm, performance bound. | |||||||||
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