期刊名称：Advances in Computer Science and its Applications
印刷版ISSN：2166-2924
出版年度：2012
卷号：1
期号：2
页码：122-125
语种：English
出版社：World Science Publisher
摘要：The present peer-to-peer (P2P) content distribution system is based on simple on-demand content discovery technique. This can be improved by implementing additional capabilities namely a mechanism through which peers can register with the network so that they can be continuously informed of new data items, and a means for the peers to advertise their contents. Existing unstructured overlay based systems require complex indexing and routing schemes makes the network less flexible for transient peers. For these applications, we study the alternate continuous query paradigm, which is a best-effort service providing the services. We present a scalable and effective middleware called CQUOS for supporting continuous queries in unstructured overlay networks. CQUOS preserves the simplicity and flexibility of the unstructured P2P network. It has two techniques namely cluster resilient random walk algorithm which is responsible for pro propagating the queries to various regions of the network and dynamic probability-based query registration scheme to ensure that the registrations are well distributed in the overlay. This paper studies the properties of our algorithms through theoretical analysis.
