Adaptation using neural network in frequency selective MIMO-OFDM systems

  • Authors:
  • Halil Yigit;Adnan Kavak

  • Affiliations:
  • Department of Electronics and Computer Education, Kocaeli University, Izmit, Kocaeli, Turkey;Department of Computer Engineering, Kocaeli University, Izmit, Kocaeli, Turkey

  • Venue:
  • ISWPC'10 Proceedings of the 5th IEEE international conference on Wireless pervasive computing
  • Year:
  • 2010

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Abstract

In this paper, we proposed a neural network (NN) framework as a machine learning technique for link adaptation based on adaptive modulation and coding in 802.11n MIMO-OFDM wireless system to predict the best modulation and coding scheme (MCS) index under packet error rate (PER) constraints. Our approach is compared with the k-nearest neighbour (k-NN) algorithm in frequency selective wireless channels. Simulation results validate the implementation of proposed neural network framework in frequency selective channels, and show that the neural network technique outperforms k-NN algorithm especially in terms of PER when low MCS index selection which provide higher communication reliability is exploited.