A Comparative Study on Routing Convergence of IP-Based and ICN-Based Routing Protocols in Satellite Networks
Communications in Computer and Information ScienceEmerging Networking Architecture and Technologies(2023)
摘要
The mobility of satellites makes it highly challenging to design routing protocols for satellite networks. In this paper, we investigate the adaptability of IP-based and ICN-based routing protocols in satellite networks. Specifically, we conduct a comparative study on the classic IP-based and ICN-based routing mechanisms (i.e., OSPF and NLSR). Moreover, we implement the above routing protocols on OMNeT++ and present extensive comparative simulation results to explore the impact of satellite mobility on the convergence time and messaging overhead. We unveil several critical and counter-intuitive insights in terms of the snapshot length (i.e., period of a stable topology) as well as the convergence time and messaging overhead incurred by OSPF and NLSR in satellite networks. First, the evaluation results show that the snapshot length in a small-scale constellation may not be larger than that of a large-scale constellation. Second, OSPF converges at least 43.49% faster and incurs less messaging overhead than NLSR.
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关键词
Satellite networks, Information-Centric Networking (ICN), Internet Protocol (IP), Routing protocol
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