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Sociedade Brasileira de Telecomunicações

A Distance-based Study for Device-to-Device Communication Underlaying a Cellular System

The increasing demand for rich multimedia services and the scarcity of radio resources has motivated the research of technologies able to increase wireless systems’ capacity without requiring additional spectrum. In this context, direct Device-toDevice (D2D) communication between User Equipments (UEs) is a promising technology. By allowing direct low-power communication among UEs, D2D communication leads to intelligent spatial reuse of radio resources, permits to offload the network and to increase its capacity and/or Quality of Service (QoS) levels. In this work, we provide a brief literature review on D2D communication, identify and discuss key issues related to the potential benefits of D2D communication within a cellular system, as well as present a distance-based study for defining scenarios in which D2D communication can increase the overall system capacity.

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