When SDN meets C-RAN: A survey exploring multi-point coordination, interference, and performance. (15th July 2020)

• Record Type: Journal Article
• Authors: Zanferrari Morais, Fernando; André da Costa, Cristiano; Alberti, Antonio Marcos; Bonato Both, Cristiano; da Rosa Righi, Rodrigo
• Is Part Of: Journal of network and computer applications. Volume 162(2020)
• Publication Date: 2020-07-15
• Subjects: SDN -- Cloud RAN -- CoMP -- ICIC -- Fronthaul -- 5G; Microcomputers -- Periodicals; Computer networks -- Periodicals; Application software -- Periodicals; Micro-ordinateurs -- Périodiques; Réseaux d'ordinateurs -- Périodiques; Logiciels d'application -- Périodiques; Application software; Computer networks; Microcomputers; Periodicals; 004.05; 004
• DOI: 10.1016/j.jnca.2020.102655
• Languages: English
• ISSNs: 1084-8045

Abstract

Abstract: 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.