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论文类型：期刊论文

发表时间：2012-03-01

发表刊物：COMPUTERS & ELECTRICAL ENGINEERING

收录刊物：SCIE、EI、Scopus

卷号：38

期号：2

页面范围：194-205

ISSN号：0045-7906

摘要：To deal with the file pollution problem in structured P2P networks, this paper proposes an anti-pollution strategy based on the immune approach and the file propagation-chain tracing technique. With the characteristics of the structured P2P networks, we establish a biological immune model and a file propagation tracing mechanism, based on which the mechanisms for alarms collection, propagation-chain tracing, immune response and antibody memorizing are designed. The proposed immune strategy can not only eliminate the polluted clusters and indices effectively but also prevent the reviving of the old pollution. In addition, the node permission is employed to control the ability to request files. The experimental results show that our strategy can curb the propagations of the polluted files effectively and efficiently even in the severely polluted structured P2P networks. (C) 2012 Elsevier Ltd. All rights reserved.