Wang, C; Wu, Y; Zhou, F; Wu, Q; Dong, C; Wong, KK; (2022) Accurate Spectrum Map Construction Using An Intelligent Frequency-Spatial Reasoning Approach. In: Proceedings of the IEEE Global Communications Conference, GLOBECOM 2022 - Proceedings. (pp. pp. 3460-3465). Institute of Electrical and Electronics Engineers (IEEE)

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Abstract

Spectrum map is of crucial importance for realizing efficient spectrum management in the sixth-generation (6G) wireless communication networks. However, the existing spectrum map construction schemes mainly depend on spatial interpolation and cannot construct the spectrum map when the measurement data of the target frequency are not obtained. In order to overcome this challenge, an accurate spectrum map construction scheme is proposed by using an intelligent frequency-spatial reasoning approach. The frequency correlation among different spectrum maps at different frequencies is fully exploited to construct the highly accurate spectrum maps of the frequencies without spectrum data. A novel autoencoder adapting to the three-dimensional (3D) spectrum data is proposed. Simulation results demonstrate that our proposed scheme is superior to the benchmark schemes in terms of the construction accuracy. Moreover, it is shown that our proposed autoencoder network has a fast convergence speed.

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