An Economic Dynamic Replication Model for Mobile-P2P networks

摘要

In mobile ad-hoc peer-to-peer (M-P2P) networks, frequent network partitioning leads to typically low data availability, thereby necessitating data replication. This work proposes EcoRep, a novel economic model for dynamic replica allocation in M-P2P networks. EcoRep ensures fair replica allocation, while discouraging free-riding. EcoRep deploys a replica allocation algorithm, which considers relative importance of data items, load and energy issues, user mobility patterns, replica consistency and number of neighbors of a given user. Our performance study demonstrates that EcoRep is indeed effective in improving query response times and data availability in M-P2P networks.