Research Cell: An International Journal of Engineering Sciences

K. Srinivas ¹, Gunamani Jena ², A. Satyamallesh

Affiliations
1 Department of Computer Science and Engineering, B.V.C.Enggineering College, Odalarevu, IN
2 BVCEC, IN

Abstract

In this paper, we describe the Distributed Cycle Minimization Protocol (DCMP), a dynamic fully decentralized protocol that significantly reduces the duplicate messages by eliminating unnecessary cycles. As queries are transmitted through the peers, DCMP identifies the problematic paths and attempts to break the cycles while maintaining the connectivity of the network. In order to preserve the fault resilience and load balancing properties of unstructured P2P systems, DCMP avoids creating a hierarchical organization. Instead, it applies cycle elimination symmetrically around some powerful peers to keep the average path length small.The overall structure is constructed fast with very low overhead. With the information collected during this process, distributed maintenance is performed efficiently even if peers quit the system without notification. The experimental results from our simulator and the prototype implementation on Planet Lab confirm that DCMP significantly improves the scalability of unstructured P2P systems without sacrificing their desirable properties. Moreover, due to its simplicity, DCMP can be easily implemented in various existing P2P systems and is orthogonal to the search algorithms.

Keywords

P2P, DCMP.

Full Text