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Image Super Resolution based Channel Estimation for Future Wireless Communication
  • Muneeb Ahmad ,
  • Tanzeela Shakeel ,
  • Soo Young Shin
Muneeb Ahmad
Kumoh National Institute of Technology

Corresponding Author:[email protected]

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Tanzeela Shakeel
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Soo Young Shin
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In this paper, a novel image-based deep learning (DL) approach for channel estimation for future wireless communications is proposed. The time-frequency response of fast fading wireless channel is represented as a 2D image to estimate the unknown values of the channel response using known values at the pilot locations. With given images, both image superresolution (SR) and image restoration (IR), termed as super resolution and denoising network (SRDnN), are combined to estimate wireless channel. To show the effectiveness, the proposed SRDnN is applied to massive multiple-input multiple output (mMIMO) with non-orthogonal multiple access (NOMA). The enhanced performances of SRDnN are quantified in terms of mean square error (MSE) and symbol error rate (SER). In addition, the influence of pilot numbers on SRDnN performance for next generation mMIMO-NOMA networks is presented. The simulation results demonstrate that SRDnN is comparable to the level of maximum likelihood (ML) detection for both with and without complete channel state information (CSI) at the receiver with less number of pilots.
Dec 2023Published in Computer Networks volume 237 on pages 110057. 10.1016/j.comnet.2023.110057