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Location-Based Services Handbook by Mohammad Ilyas, Syed A. Ahson

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Chapter 10

Presence Services for the Support of Location-Based Applications

Paolo Bellavista, Antonio Corradi, and Luca Foschini

10.1 Introduction

A growing number of mobile users demand seamless access to their services while they move across heterogeneous wireless infrastructures, spanning from IEEE 802.11 and Bluetooth to cellular 3G and beyond. Even if device and network capabilities are growing, the development of mobile location-based services (LBS) applications over this fully integrated wireless provisioning infrastructure remains a very challenging task because of the ‘hard’ service requirements of quality of service (QoS) and high scalability. For instance, disaster recovery scenarios, such as earthquakes and natural disasters, require ...

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