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When SDN meets C-RAN: A survey exploring multi-point coordination, interference, and performance
Journal of Network and Computer Applications ( IF 7.7 ) Pub Date : 2020-04-14 , DOI: 10.1016/j.jnca.2020.102655
Fernando Zanferrari Morais , Cristiano André da Costa , Antonio Marcos Alberti , Cristiano Bonato Both , Rodrigo da Rosa Righi

The transformation of mobile networks towards fifth generation (5G) is considered an unprecedented revolution when compared to the previous generations, mainly because of the support required for three scenarios: ultra reliable and low latency; high throughput broadband; and massive machine type communication. In this context, the evolution from RAN to C-RAN is a significant contribution to advance the deployment of this new generation. C-RAN concepts bring opportunities like centralized processing, improved interference control, flexible fronthaul networks, and support for ultra-dense heterogeneous radio access networks. SDN emerges as a candidate technology for the development of programmable 5G networks, with centralized orchestration and control/data planes decoupling. In this article, we propose a systematic literature review to cover SDN application in the context of 5G communication and C-RAN. In combination with the concepts as mentioned earlier, the article evaluates coordination and interference management features provided by Coordinated Multi-point and Inter-cell Interference Coordination techniques, besides reviewing fronthaul transport tier capabilities offered by SDN for 5G networks. A careful literature analysis shows that there are no revisions with the same focus as that developed in this survey. As contributions, this article presents a novel taxonomy of SDN technology, enabling C-RAN, as well as trending directions and development opportunities for SDN and C-RAN-based 5G networks.



中文翻译:

当SDN遇到C-RAN时:探索多点协调,干扰和性能的调查

与前几代相比,移动网络向第五代(5G)的转变被认为是一场空前的革命,这主要是由于以下三种情况所需的支持:超可靠和低延迟;高吞吐量宽带;和大规模的机器类型通信。在这种情况下,从RAN到C-RAN的演进为推动这一新一代的部署做出了重大贡献。C-RAN概念带来了诸如集中处理,改进的干扰控制,灵活的前传网络以及对超密集异构无线接入网络的支持等机会。在集中式编排和控制/数据平面解耦的情况下,SDN成为发展5G可编程网络的候选技术。在这篇文章中,我们提出了系统的文献综述,以涵盖5G通信和C-RAN中的SDN应用。结合前面提到的概念,除了评估SDN为5G网络提供的前传传输层功能之外,本文还评估了多点协作和小区间干扰协调技术提供的协调和干扰管理功能。仔细的文献分析表明,没有与本次调查相同重点的修订。作为贡献,本文提出了一种新颖的SDN技术分类法,支持C-RAN,以及SDN和基于C-RAN的5G网络的趋势和发展机会。除了评估SDN为5G网络提供的前传传输层功能外,本文还评估了多点协作和小区间干扰协作技术提供的协作和干扰管理功能。仔细的文献分析表明,没有与本次调查相同重点的修订。作为贡献,本文提出了一种新颖的SDN技术分类法,支持C-RAN,以及SDN和基于C-RAN的5G网络的趋势和发展机会。除了评估SDN为5G网络提供的前传传输层功能外,本文还评估了多点协作和小区间干扰协作技术提供的协作和干扰管理功能。仔细的文献分析表明,没有与本次调查相同重点的修订。作为贡献,本文提出了一种新颖的SDN技术分类法,支持C-RAN,以及SDN和基于C-RAN的5G网络的趋势和发展机会。仔细的文献分析表明,没有与本次调查相同重点的修订。作为贡献,本文提出了一种新颖的SDN技术分类法,支持C-RAN,以及SDN和基于C-RAN的5G网络的趋势和发展机会。仔细的文献分析表明,没有与本次调查相同重点的修订。作为贡献,本文提出了一种新颖的SDN技术分类法,支持C-RAN,以及SDN和基于C-RAN的5G网络的趋势和发展机会。

更新日期:2020-04-14
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