Conference Proceedings

An Energy Efficient D2D Model with Guaranteed Quality of Service for Cloud Radio Access Networks

IJ Ranawaka, KT Hemachandra, T Samarasinghe, T Nuradha

International Symposium on Wireless Personal Multimedia Communications, WPMC | Published : 2019

Abstract

This paper proposes a spectrum selection scheme and a transmit power minimization scheme for a device-to-device (D2D) network cross-laid with a cloud radio access network (CRAN). The D2D communications are allowed as an overlay to the CRAN as well as in the unlicensed industrial, scientific and medical radio (ISM) band. A link distance based scheme is proposed and closed-form approximations are derived for the link distance thresholds to select the operating band of the D2D users. Furthermore, analytical expressions are derived to calculate the minimum required transmit power to achieve a guaranteed level of quality of service in each operating band. The results demonstrate that the proposed..

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