1、A Resource Allocation Scheme for Device-to-Device Communication over Ultra-Dense 5G Cellular Networks 外文标题： A Resource Allocation Scheme for Device-to-Device Communication over Ultra-Dense 5G Cellular Networks 外文作者： J Gu ， HW Yoon ， J Lee ， SJ Bae ， YC Min 文献出处： Applied Mecha
2、nics & Materials , 2015 , 713-715 :1208-1215 英文 2655 单词， 15098 字符，中文 3509 汉字。 此文档是外文翻译成品，无需调整复杂的格式哦！下载之后直接可用，方便快捷！只需二十多元。 Abstract With the advance of the wireless technologies and mobile devices, the number of mobile devices in cellular system will explosively grow. According
3、to this trend, a base station will face a heavy traffic loading and even cannot provide services for a large amount of mobile devices. To deal with this issue, device-to-device (D2D) technology is a promising solution to increase spectrum efficiency by reusing radio resource blocks. In this paper, w
4、e study a resource allocation problem with the objective of maximizing system capacity over ultra-dense 5G cellular systems and consider a scenario that the number of D2D users is more than that of cellular users. This paper observes that radio resource blocks should be firstly allocated to D2D user
5、s under the ultra-dense scenario. Then, we propose resource allocation methods to solve this problem. Simulation results agree our observation and show that the proposed scheme can significantly improve the system capacity and spectrum efficiency Index TermsD2D, cellular networks, resource allocatio
6、n I. INTRODUCTION With the advance of mobile devices, mobile data traffic will explosively grow every year. In other words, each base station requires to serve more users and suffers a problem that radio resources are not sufficient to provide services for ultra-dense users. Device-to- device (D2D) communications is one of the solutions to offload the traffic loading of a base station. A pair of D2D devices can reuse a frequency, used by another pair of D2D devices, to increase spectrum efficiency and system capacity when the two
