Title :
The Method of Theoretic Estimation of BER of ML Receiver for Binary Coded Systems with Square QAM
Author :
Natalin, Alexey B. ; Sergienko, Alexander B.
Author_Institution :
Department of Theoretical Fundamentals of Radio Engineering, St. Petersburg Electrotechnical University, 5 Prof. Popov Street, St. Petersburg, 197376, Russia. E-mail: ABNatalin@mail.eltech.ru
fDate :
6/1/2006 12:00:00 AM
Abstract :
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.
Keywords :
AWGN; Amplitude estimation; Binary phase shift keying; Bit error rate; Channel state information; Estimation theory; Fading; Maximum likelihood estimation; Quadrature amplitude modulation; State estimation; Gray codes; bit error rate; bit metric; error analysis; error correcting coding; quadrature amplitude modulation;
Conference_Titel :
Communications, 2006. ICC '06. IEEE International Conference on
Print_ISBN :
1-4244-0355-3
Electronic_ISBN :
8164-9547
DOI :
10.1109/ICC.2006.254912
