Graduate School and Research Center in Digital Sciences

Predicting device-to-device channels from cellular channel measurements: A learning approach

Najla, Mehyar; Becvar, Zdenek; Mach, Pavel; Gesbert, David

IEEE Transactions on Wireless Communications, 16 July 2020

Device-to-device (D2D) communication, which enables a direct connection between users while bypassing the cellular channels to base stations (BSs), is a promising way to offload the traffic from conventional cellular networks. In D2D communication, one recurring problem is that, in order to optimally allocate resources across D2D and cellular users, the knowledge of D2D channel gains is needed. However, such knowledge is hard to obtain at reasonable signaling costs. In this paper, we show this problem can be circumvented by tapping into the information provided by the estimation of the cellular channels between the users and surrounding BSs as this estimation is done anyway for a normal operation of the network. While the cellular and D2D channel gains exhibit independent fast fading behavior, we show that average gains of the cellular and D2D channels share a non-explicit correlation structure, which is rooted into the network topology, terrain, and buildings setup. We propose a machine (deep) learning approach capable of predicting the D2D channel gains from seemingly independent cellular channels. Our results show a high degree of convergence between true and predicted D2D channel gains. The predicted gains allow to reach a near-optimal communication capacity in many radio resource management algorithms.

Doi Arxiv Bibtex

Title:Predicting device-to-device channels from cellular channel measurements: A learning approach
Keywords:Device-to-device; Channel prediction; Deep neural networks; Supervised machine learning
Type:Journal
Language:English
City:
Date:
Department:Communication systems
Eurecom ref:6127
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Bibtex: @article{EURECOM+6127, doi = {http://dx.doi.org/10.1109/TWC.2020.3008303}, year = {2020}, month = {07}, title = {{P}redicting device-to-device channels from cellular channel measurements: {A} learning approach}, author = {{N}ajla, {M}ehyar and {B}ecvar, {Z}denek and {M}ach, {P}avel and {G}esbert, {D}avid}, journal = {{IEEE} {T}ransactions on {W}ireless {C}ommunications, 16 {J}uly 2020}, url = {http://www.eurecom.fr/publication/6127} }
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