Smart Gateway Diversity (SGD) is a fundamental concept introduced to maintain high service availability in High Throughput Satellites (HTS) working at frequency bands above Ka-band. This paper proposes a novel approach for the SGD management logic that takes into account the “graceful degradation” of the link for triggering a handover of traffic among gateways (GWs.) Moreover, the paper proposes a Software Defined Network (SDN) implementation of the handover control procedure and an algorithm for building the flows matrices of the SDN switches that guarantees a fair balancing of traffic among the gateways, thus allowing a better exploitation of resources and maximization of the overall operational capacity of the HTS system. The SDN paradigm, by allowing efficient network programmability and real time re-configuration of the flow tables, enables the possibility to implement dynamic and granular resource allocation; this is a fundamental requirement for the proposed novel SGD network management approach, where re-configuration is triggered by smaller and more frequent signal-to-noise ratio (SNR) fluctuations. The performance of the proposed handover control procedures have been evaluated over real Q/V band link by using the experimental data collected through the TDP5 “Aldo Paraboni” payload embarked on the Alphasat satellite. Performance results show a gain of 40% in terms of aggregated capacity of the system with respect to the case of using an on–off SGD management logic.

Aurizzi, M.m., Rossi, T., Raso, E., Funari, L., Cianca, E. (2021). An SDN-based traffic handover control procedure and SGD management logic for EHF satellite networks. COMPUTER NETWORKS, 196 [10.1016/j.comnet.2021.108260].

An SDN-based traffic handover control procedure and SGD management logic for EHF satellite networks

Rossi T.;Cianca E.
2021-01-01

Abstract

Smart Gateway Diversity (SGD) is a fundamental concept introduced to maintain high service availability in High Throughput Satellites (HTS) working at frequency bands above Ka-band. This paper proposes a novel approach for the SGD management logic that takes into account the “graceful degradation” of the link for triggering a handover of traffic among gateways (GWs.) Moreover, the paper proposes a Software Defined Network (SDN) implementation of the handover control procedure and an algorithm for building the flows matrices of the SDN switches that guarantees a fair balancing of traffic among the gateways, thus allowing a better exploitation of resources and maximization of the overall operational capacity of the HTS system. The SDN paradigm, by allowing efficient network programmability and real time re-configuration of the flow tables, enables the possibility to implement dynamic and granular resource allocation; this is a fundamental requirement for the proposed novel SGD network management approach, where re-configuration is triggered by smaller and more frequent signal-to-noise ratio (SNR) fluctuations. The performance of the proposed handover control procedures have been evaluated over real Q/V band link by using the experimental data collected through the TDP5 “Aldo Paraboni” payload embarked on the Alphasat satellite. Performance results show a gain of 40% in terms of aggregated capacity of the system with respect to the case of using an on–off SGD management logic.
2021
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore ING-INF/03 - TELECOMUNICAZIONI
English
EHF satellite networks
High-throughput Satellites
OpenVswitch
Q/V bands
SDN
Smart gateway Diversity
Traffic handover procedure
Aurizzi, M.m., Rossi, T., Raso, E., Funari, L., Cianca, E. (2021). An SDN-based traffic handover control procedure and SGD management logic for EHF satellite networks. COMPUTER NETWORKS, 196 [10.1016/j.comnet.2021.108260].
Aurizzi, Mm; Rossi, T; Raso, E; Funari, L; Cianca, E
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/290884
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