ProMWS: Proactive mobile Web service provision using context-awareness

Applying Web service in mobile peer-to-peer service provisioning enhances the interoperability and resolves the heterogeneous challenges of ubiquitous environments. However, due to the nature of mobile peer-to-peer environments, a central repository for assisting service discovery is nonexistent, service discovery process relies on routing techniques, which increase the latency of the service interaction. This paper introduces ProMWS, a context-aware mobile Web service pre-fetching strategy to enable proactive service provisioning based on user preference and context. The proposed strategy predicts the mobile user's query, and cooperates with remote services to pre-fetch the service to the cache of mobile device in advance before the user requests for it.

I. Introduction

Recently, mobile devices such as personal digital assistants (PDAs), smart phones, and handheld media players are powerful enough to be employed as service providers and participate within the ubiquitous computing environment. These devices are capable of establishing an infrastructureless, peer-to-peer topology, and providing services to each other. Such a topology is known as mobile peer-to-peer network (MP2P), which plays an essential role in ubiquitous computing.