An IMS-Based Middleware Solution for Energy-Efficient and Cost-Effective Mobile Multimedia Services

  • Paolo Bellavista
  • Antonio Corradi
  • Luca Foschini
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 7)

Abstract

Mobile multimedia services have recently become of extreme industrial relevance due to the advances in both wireless client devices and multimedia communications. That has motivated important standardization efforts, such as the IP Multimedia Subsystem (IMS) to support session control, mobility, and interoperability in all-IP next generation networks. Notwithstanding the central role of IMS in novel mobile multimedia, the potential of IMS-based service composition for the development of new classes of ready-to-use, energy-efficient, and cost-effective services is still widely unexplored. The paper proposes an original solution for the dynamic and standard-compliant redirection of incoming voice calls towards WiFi-equipped smart phones. The primary design guideline is to reduce energy consumption and service costs for the final user by automatically switching from the 3G to the WiFi infrastructure whenever possible. The proposal is fully compliant with the IMS standard and exploits the recently released IMS presence service to update device location and current communication opportunities. The reported experimental results point out that our solution, in a simple way and with full compliance with state-of-the-art industrially-accepted standards, can significantly increase battery lifetime without negative effects on call initiation delay.

Keywords

Mobile Multimedia Energy Efficiency Middleware Standards IP Multimedia Subsystem (IMS) 

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Copyright information

© ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering 2009

Authors and Affiliations

  • Paolo Bellavista
    • 1
  • Antonio Corradi
    • 1
  • Luca Foschini
    • 1
  1. 1.Dipartimento di Elettronica Informatica e SistemisticaUniversità di BolognaBolognaItaly

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