DOIONLINE 
DOIONLINE Publish In |
International Journal of Advance Computational Engineering and Networking (IJACEN)-IJACEN |
 Journal Home Volume Issue |
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Issue |
Volume-5,Issue-9 ( Sep, 2017 ) | |||||||||
Paper Title |
Channel Estimation in OFDM System using Multi-Layered Perceptron Neural Network Combined with Artificial Bee Colony Algorithm | |||||||||
Author Name |
Necmi Taspinar, Sidra Meo Rajput, Nurcan Sarikaya Basturk, Alper Basturk | |||||||||
Affilition |
Department of Electrical and Electronics Engineering, Erciyes University, Kayseri, TURKEY Institute of Natural and Applied Science, Erciyes University, Kayseri, TURKEY Department of Aircraft Electrical and Electronics Engineering, Erciyes University, Kayseri, TURKEY Department of Computer Engineering, Erciyes University, Kayseri, TURKEY | |||||||||
Pages |
10-15 | |||||||||
Abstract |
For many modern wireless and telecommunications systems, Orthogonal Frequency Division Multiplexing (OFDM) is being used as a modulation technique. OFDM has been adopted for the cellular telecommunications standard LTE / LTE-A, also it has been chosen by other standards including WiMAX, Wi-Fi and many more. In this study, a multilayered perceptron based neural network has been trained with Artificial Bee Colony (ABC) optimization algorithm for channel estimation of an OFDM system. The results of proposed algorithm (ABCNN) are compared with conventional channel estimators such as Least Square (LS) and Minimum Mean Square Error (MMSE) and also with conventional back propagation neural network (BPNN). In this work, mean square error (MSE) and bit error rate (BER) have been used to evaluate the performance of ABC-NN. The simulation results show that channel estimation based on proposed algorithm gives better performance as compared to LS algorithm and BP-NN without the need of channel statistics and noise information. Although MMSE algorithm performs better than ABC-NN for channel estimation of OFDM, ABC-NN is less complex and does not require channel state information in advance. Index Terms—OFDM, Channel Estimation, Neural Network, Artificial Bee Colony Optimization Algorithm | |||||||||
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