The Method of Theoretic Estimation of BER of ML Receiver for Binary Coded Systems with Square QAM

In this paper we propose a method of the theoretic estimation of the bit error rate (BER) for coded systems with square quadrature amplitude modulation (QAM) constellation in memoryless flat fading channel with perfect channel state information (CSI) and maximum likelihood estimation of transmitted...

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Bibliographic Details
Main Authors: Natalin, Alexey B., Sergienko, Alexander B.
Format: Conference Proceeding
Language:English
Subjects:
Amplitude estimation
AWGN
Binary phase shift keying
Bit error rate
bit metric
Channel state information
error analysis
error correcting coding
Estimation theory
Fading
Gray codes
Maximum likelihood estimation
Quadrature amplitude modulation
State estimation
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Summary:In this paper we propose a method of the theoretic estimation of the bit error rate (BER) for coded systems with square quadrature amplitude modulation (QAM) constellation in memoryless flat fading channel with perfect channel state information (CSI) and maximum likelihood estimation of transmitted data. The specific case of additive white Gaussian noise (AWGN) channel is considered separately. The proposed method is based on the approximation of log likelihood ratio (LLR) and the model of equivalent communication channel with coded binary phase shift keying (BPSK) signal and memoryless flat fading. Systems with 1/2 convolutional code (K= 7), 16-QAM and 64-QAM signals are simulated and simulation results are compared with proposed theoretic estimation.
ISSN:1550-3607
1938-1883
DOI:10.1109/ICC.2006.254912