Designing Reliable Virtualized Radio Access Networks

Autor:	Usubütün, Ufuk, Gomes, André, Narayanan, Shankaranarayanan Puzhavakath, Hiltunen, Matti, Panwar, Shivendra
Rok vydání:	2024
Předmět:	Computer Science - Networking and Internet Architecture
Druh dokumentu:	Working Paper
Popis:	As virtualization of Radio Access Networks (RAN) gains momentum, understanding the impact of hardware and software disaggregation on resiliency becomes critical to meet the high availability requirements of mobile networks. Our paper presents an analytical model, using continuous time Markov chains, to study the impact of virtualization and disaggregation on RAN availability. Our evaluation, assuming typical parameter value ranges for failure and recovery rates, points to containerized platform reliability as a constraint on vRAN availability. We also find that with active-passive replication, increasing hardware replication factor beyond 2 may not bring any benefits unless failover times are reduced. We also compare the reliability of centralized and distributed virtualized central units. Comment: 7 pages, To appear at IEEE Globecom 2024
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2409.11334 Zobrazit plný text záznamu View this record from Arxiv