This article proposes a discussion on the strengths, weaknesses, opportunities, and threats related to the deployment of QUIC end-to-end from a satellite-operator point-of-view. The deployment of QUIC is an opportunity for improving the quality of experience when exploiting satellite broadband accesses. Indeed, the fast establishment of secured connections reduces the transmission time of short files.Moreover, removing transport-layer performance-enhancing proxies reduces the cost of network infrastructures and improves the integration of satellite systems.However, the congestion and flow controls at end points are not always suitable for satellite communications due to the intrinsic high bandwidth-delay product. Further acceptance of QUIC in satellite systems would be guaranteed if its performance in specific use cases were increased. Based on an emulated platform and on open-source software, this paper proposes values of performance metrics as one piece of the puzzle. The final performance objective requires consensus among the different actors. The objective should at least provide acceptable performance for satellite operators to allow QUIC traffic but reasonable enough to keep QUIC deployable on the Internet.
To address the performance problems that many business critical applications are experiencing, network vendors and Network Service Providers (NSP) are reconsidering the integration of some form of application awareness in the way their networks forward user traffic. Their ultimate goal is to devise new network service models that are dedicated and customized to applications while efficiently using network resources. Even if this approach is not new and has been already followed with a mitigated success two decades ago, the emergence of software-Defined networking and network virtualization coupled with DPI (Deep Packet Inspection) pave the way for the investigation of new approaches/solutions towards application aware/driven networks. This is exactly the motivations of this work whose objective is to propose an Application Driven Network (ADN) that provides services to a specific type of applications, i.e. Dynamic Data Distribution Service (DDS) based applications. Considered as one of the leading connectivity standard for industrial IoT communications, focusing on DDS allows a fine-grained description of applications' traffic and needs. With this information as input, the proposed ADN is able to provision network services that stick to application needs while using network resources efficiently. This paper sketches the general architecture of such ADN by describing its main components, their requirements as well as their algorithms. This solution has been implemented, prototyped and applied to a DDS based distributed interactive simulation application.
The first version of QUIC has recently been standardized by the IETF. The framework of QUIC enables the proposition, negociation and exploitation of extensions to adapt some of its mechanisms. As one example, the DATAGRAM extension enables the unreliable transmission of data.The BDP F RAM E extension is a method that can improve traffic delivery by allowing a QUIC connection to remember the knowledge of path characteristics and exploit them when resuming a session.This technical report presents the rationale behind fast convergence in SATCOM systems and evaluate the BDP F RAM E extension in emulated and live environments.
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