tailieunhanh - Báo cáo hóa học: "Research Article COSR: A Reputation-Based Secure Route Protocol in MANET"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article COSR: A Reputation-Based Secure Route Protocol in MANET | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2010 Article ID 258935 10 pages doi 2010 258935 Research Article COSR A Reputation-Based Secure Route Protocol in MANET Fei Wang 1 FurongWang 1 Benxiong Huang 1 and Laurence T. Yang2 1 Electronic and Information Engineering Department Huazhong University of Science Technology HUST 1037 Luoyu Road Wuhan 430074 China 2 Department of Computer Science St. Francis Xavier University Canada Correspondence should be addressed to Fei Wang wangfei@ Received 2 April 2010 Accepted 25 June 2010 Academic Editor Liang Zhou Copyright 2010 Fei Wang et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Now the route protocols defined in the Mobile Ad Hoc Network MANET are constructed in a common assumption which all nodes contained in such networks are trustworthy and cooperative. Once malicious or selfish nodes exist all route paths built by these protocols must be broken immediately. According to the secure problems within MANET this paper proposes Cooperative On-demand Secure Route COSR a novel secure source route protocol against malicious and selfish behaviors. COSR measures node reputation NR and route reputation RR by contribution Capability of Forwarding CoF and recommendation upon Dynamic Source Route DSR and uses RR to balance load to avoid hotpoint. Furthermore COSR defines path collection algorithm by NR to enhance efficiency of protocol. At last we verify COSR through GloMoSim. Results show that COSR is secure and stable. 1. Introduction A mobile Ad Hoc network is a collection of autonomous nodes that communicate with each other. There are no base stations access points and any centralized control equipment. The entering and exiting of any node occur freely and without any management. Further as