Interference Management of D2D Communication in 5G Cellular Network

Abstract

Wireless communication have grown rapidly for \nthe last decades, and the number of mobile equipment have \nincreased exponentially. Increasing the network capacity has \nbeen one of the major challenges for 5G networks. The limited \nof radio spectrum in wireless network and the ever increase of \nnetwork users leaves the communication channels so crowded. \nThis caused congested traffic to one base station (especially in \nurban areas) and introduces interference in the entire \ncommunication system thereby degrading the Quality of \nService (QoS) and system capacity. In this paper, analysis of \nthe usage of Device-to-Device (D2D) communications in HetNet \nwhich consists of macro and small cells to reduce interference \nlevels in the system will be conducted through the simulation. \nD2D is a technology in which neighboring mobile devices \ncommunicate directly with each other without a Base Station \n(BS) involvement. They can improve network performance but \nthey also complicate Interference Management (IM) because \nthere are no dedicated resources available for them; they are \nsharing same radio resources (RRs) with Cellular User (CU). \nThis paper is proposing a scheme of interference management \nfor the HetNet-based multi-tier cellular network on a given \nD2D feasible set to better connect QoS for both cellular \nconnections of (small cell and macro cell) and D2D connections \nwhile sharing resources. It is shown that an optimized \ndeployment scheme can increase the efficiency of Ultra-Dense \nNetworks (UDN) and satisfy com QoS requirements. The \nresults will be compared to the neighbor-based scheme.