mca 14(5): e3

Research Article

Characterizing SPDY over High Latency Satellite Channels

Download261 downloads
  • @ARTICLE{10.4108/mca.2.5.e3,
        author={Luca Caviglione and Alberto Gotta},
        title={Characterizing SPDY over High Latency Satellite Channels},
        journal={EAI Endorsed Transactions on Mobile Communications and Applications},
        volume={2},
        number={5},
        publisher={ICST},
        journal_a={MCA},
        year={2014},
        month={12},
        keywords={networking protocol, satellite network, lossy channels, SPDY, HTTP, performance evaluation},
        doi={10.4108/mca.2.5.e3}
    }
    
  • Luca Caviglione
    Alberto Gotta
    Year: 2014
    Characterizing SPDY over High Latency Satellite Channels
    MCA
    ICST
    DOI: 10.4108/mca.2.5.e3
Luca Caviglione1,*, Alberto Gotta2
  • 1: Institute of Intelligent Systems for Automation (ISSIA), National Research Council of Italy (CNR)
  • 2: Information Science and Technologies Institute (ISTI), National Research Council of Italy (CNR)
*Contact email: luca.caviglione@ge.issia.cnr.it

Abstract

The increasing complexity ofWeb contents and the growing diffusion of mobile terminals, which use wireless and satellite links to get access to the Internet, impose the adoption of more specialized protocols. In particular, we focus on SPDY, a novel protocol introduced by Google to optimize the retrieval of complex webpages, to manage large Round Trip Times and high packet losses channels. In this perspective, the paper characterizes SPDY over high latency satellite links, especially with the goal of understanding whether it could be an efficient solution to cope with performance degradations typically affecting Web 2.0 services. To this aim, we implemented an experimental set-up, composed of an ad-hoc proxy, a wireless link emulator, and an instrumented Web browser. The results clearly indicate that SPDY can enhance the performances in terms of loading times, and reduce the traffic fragmentation. Moreover, owing to its connection multiplexing architecture, SPDY can also mitigate the transport layer complexity, which is critical when in presence of Performance Enhancing Proxies usually deployed to isolate satellite trunks.