Abstract
Unlike conventional cellular communication, device-to-device (D2D) communication establish the direct link between two nearby mobile users without involving the network infrastructure to meet the demand of high data rate and low power consumption. To incorporate the issues of power consumption, the D2D communication has been integrated with cellular networks in underlay mode. In underlay D2D communication, licensed frequency bands are utilized by both cellular and D2D communication and it may interfere with each other depends on resource sharing which affect the Quality of Service (QoS) but increases the spectral efficiency. In this paper, the average sum rate (ASR) and energy efficiency (EE) has been analyzed for D2D communication underlaid cellular networks over Nakagami-m fading channels. Both ASR and EE are the important metric for evaluating the performance of a wireless communication system. The derived expressions show the variation over D2D users density. The analytical results are validated through simulation.
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