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A Routing Framework for Offloading Traffic From Cellular Networks to SDN-Based Multi-Hop Device-to-Device Networks

机译:用于将流量从蜂窝网络转移到基于SDN的多跳设备到设备网络的路由框架

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Device-to-device (D2D) communications are set to form an integral part of future 5G wireless networks. D2D communications have a number of benefits such as improving energy efficiency and spectrum utilization. Until now much of the D2D research in LTE and 5G-type network scenarios have focused on direct (one-hop) communications between two adjacent mobile devices. In this paper, we propose a new routing framework called virtual ad hoc routing protocol (VARP). This framework introduces significant advantages such as better security, lower routing overheads, and higher scalability, when compared to conventional ad hoc routing protocols. It also reduces traffic overhead in LTE networks using multi-hop D2D communications under management of a software defined networking (SDN)-controller. Further, it enables the development of various types of routing protocols for different networking scenarios. To this end, a source-routing based protocol was developed on top of VARP, referred to as VARP-S. We present a detailed analytical study of routing overhead in the VARP-S protocol, as compared to overhead analysis of our previous proposed hybrid SDN architecture for wireless distributed networks (HSAW) Our results show that VARP-S, compared to HSAW, achieves higher network scalability and lower power consumption for mobile nodes.
机译:设备到设备(D2D)通信被设置为构成未来5G无线网络的组成部分。 D2D通信具有许多好处,例如提高能源效率和频谱利用率。到目前为止,LTE和5G类型网络场景中的许多D2D研究都集中在两个相邻移动设备之间的直接(单跳)通信上。在本文中,我们提出了一种称为虚拟自组织路由协议(VARP)的新路由框架。与传统的ad hoc路由协议相比,此框架具有很多优势,例如更好的安全性,更低的路由开销和更高的可伸缩性。它还可以在软件定义网络(SDN)控制器的管理下使用多跳D2D通信减少LTE网络中的流量开销。此外,它支持针对不同的网络场景开发各种类型的路由协议。为此,在VARP之上开发了基于源路由的协议,称为VARP-S。与我们之前为无线分布式网络(HSAW)提出的混合SDN架构的开销分析相比,我们对VARP-S协议中的路由开销进行了详细的分析研究。我们的结果表明,与HSAW相比,VARP-S可以实现更高的网络移动节点的可扩展性和更低的功耗。

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