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Reducing User Perceived Latency with a Proactive Prefetching Middleware for Mobile SOA Access

Author

Listed:
  • Daniel Schreiber

    (TU Darmstadt, Germany)

  • Andreas Göb

    (SAP Research, Germany)

  • Erwin Aitenbichler

    (TU Darmstadt, Germany)

  • Max Mühlhäuser

    (TU Darmstadt, Germany)

Abstract

Network latency is one of the most critical factors for the usability of mobile SOA applications. This paper introduces prefetching and caching enhancements for an existing SOA framework for mobile applications to reduce the user perceived latency. Latency reduction is achieved by proactively sending data to the mobile device that could most likely be requested at a later time. This additional data is piggybacked onto responses to actual requests and injected into a client side cache, so that it can be used without an additional connection. The prefetching is done automatically using a sequence prediction algorithm. The benefit of prefetching and caching enhancements were evaluated for different network settings and a reduction of user perceived latency of up to 31% was found in a typical scenario. In contrast to other prefetching solutions, our piggybacking approach also allows to significantly increase battery lifetime of the mobile device.

Suggested Citation

  • Daniel Schreiber & Andreas Göb & Erwin Aitenbichler & Max Mühlhäuser, 2011. "Reducing User Perceived Latency with a Proactive Prefetching Middleware for Mobile SOA Access," International Journal of Web Services Research (IJWSR), IGI Global, vol. 8(1), pages 68-85, January.
    • Handle: RePEc:igg:jwsr00:v:8:y:2011:i:1:p:68-85
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    Cited by:

    1. Behrouz Sefid‐Dashti & Jafar Habibi, 2014. "A Reference Architecture for Mobile SOA," Systems Engineering, John Wiley & Sons, vol. 17(4), pages 407-425, December.

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