A hybrid mechanism for resource/service discovery in ad-hoc grids

摘要

With the proliferation of wireless mobile devices (laptops, PDAs, mobile phones, wireless sensors, etc.), and the development of efficient protocols for communication, routing, and addressing in mobile ad-hoc networks, wireless ad-hoc grids are emerging as a new computing paradigm, enabling innovative applications through the efficient sharing of information, computing resources, and services among devices in ad-hoc networks. However, the adaptation of grid technology to ad-hoc networks is not straightforward, and exhibits numerous difficulties (resource discovery, security, power consumption, QoS, etc.). This paper is focussed on the problem of resource discovery in ad-hoc grids, we study the existing resource and service discovery architectures, analyzing the main limitations of these systems (scalability, discovery delay, adaptation to changing conditions, etc.), and we propose a hybrid mechanism that overcomes these limitations.