To meet the drastic growth of mobile traffic, next-generation wireless networks integrate existing technologies such as dual-connectivity (DC) and network-assisted device-to-device (D2D) communications. In this paper, we present a new spectrum allocation scheme for a heterogeneous system, which incorporates both technologies. For the effective collaboration of individual network agents, we employ the ideas of cooperative games, and the spectrum allocation algorithm is implemented as a novel joint-bargaining process. Based on the bargaining solutions of classical Nash, weighted Nash, and Nash bargaining with coalition structure, our three-step interactive approach can leverage the full synergy of different bargaining concepts. Under the dynamic changing HetNet environments, we can take various benefits in a rational way while handling comprehensively the DC-based D2D communication issue and reach an agreement that gives mutual advantage. The main novelty of our proposed scheme is to ensure a relevant tradeoff between conflicting requirements during HetNet operations. Finally, we conduct extensive simulation study and illustrate that the proposed scheme provides a considerable performance improvement by comparison with the existing protocols.

中文翻译：

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网络辅助D2D通信的异构网络频谱分配方案

为了满足移动流量的急剧增长，下一代无线网络集成了现有技术，例如双连接（DC）和网络辅助的设备到设备（D2D）通信。在本文中，我们提出了一种异构系统的新频谱分配方案，该方案结合了两种技术。为了有效地实现各个网络代理的协作，我们采用了协作博弈的思想，并且频谱分配算法被实现为一种新颖的联合谈判过程。基于经典Nash，加权Nash和具有联盟结构的Nash讨价还价的讨价还价解决方案，我们的三步互动方法可以充分利用不同讨价还价概念的协同作用。在动态变化的HetNet环境下，在全面处理基于DC的D2D通信问题并达成互惠互利的协议时，我们可以以合理的方式获得各种好处。我们提出的方案的主要新颖之处在于确保在HetNet操作期间相互冲突的需求之间进行适当的权衡。最后，我们进行了广泛的仿真研究，并说明了与现有协议相比，该方案可以显着提高性能。