01348nas a2200109   4500008004100000245006800041210006800109520091000177100002101087700001801108856011201126       2020                        eng d00aEfficient Mechanism of eNB bandwidth in D2D communication in 5G0 aEfficient Mechanism of eNB bandwidth in D2D communication in 5G3 aThe device to device (D2D)communication will be a big part of 5G and is responsible for the direct communication between users in range without the relay of Base Station (BS). There are three modes that work in D2D communication based on radio resources and how they are used. In D2D the radio resources that are the same with cellular users the mode is named as reuse mode. The other option is to specify an amount of resources only for D2D users and it is called dedicated mode. In this paper will provide how the Users Equipments (UEs) and the D2D communication itself respond in a D2D communication when an eNB serving only in dedicated mode has to change to reuse mode in order to serve more users. Considering two scenarios, reuse and dedicated the mechanism will provide the values of interference and throughput of eNB in each scenario indicating which mode is better under specific circumstances.1 aBouras, Christos1 aBarri, Eirini  uhttp://telematics.upatras.gr/telematics/publications/efficient-mechanism-enb-bandwidth-d2d-communication-5g