NDLI: An observer-based distributed scheme for selfish-node detection in a post-disaster communication environment using delay tolerant network

Content Provider	IEEE Xplore Digital Library
Author	Chakrabarti, C. Banerjee, A. Roy, S.
Copyright Year	2014
Description	Author affiliation: Comput. Applic. Centre, Heritage Inst. of Technol., Kolkata, India (Roy, S.) \|\| Dept. of CSE, Narula Inst. of Technol., Kolkata, India (Chakrabarti, C.; Banerjee, A.)
Abstract	Aftermath of disaster causes severe destruction/damage to physical infrastructures. As a result, communication infrastructure gets disrupted for weeks. In such situations, smart-phone based adhoc opportunistic networks may be set up with the smart-phones carried by the relief workers (also referred as nodes) to communicate the situational information from different affected corners to some remote monitoring station. In such scenario, some malicious nodes may try to intercept and manipulate the sensitive situational data with the intention of corruption and fraud. One way of preventing such corruption is to devise an automated mechanism to detect and avoid the malicious nodes during data communication process. Reputation of nodes may be used as a measure to detect malicious nodes where reputation is estimated based on their degree of cooperation with other nodes in the network during data communication. In this paper, we propose an observer based dynamic reputation estimation technique for detection of selfish nodes where a group of independent roving observer nodes were introduced in the network to monitor the behavior of volunteer nodes as forwarder and receiver and to identify whether a node has any group-bias. Observers estimate the reputation of nodes based on their interaction patterns and group-biasness and periodically publishes global node reputation matrix based on which volunteer nodes may select an unselfish forwarder node during their data communication. The performance of the proposed scheme was evaluated on ONE simulator [19].
Starting Page	151
Ending Page	156
File Size	129488
Page Count	6
File Format	PDF
ISBN	9781479938803
DOI	10.1109/AIMOC.2014.6785534
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-02-27
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Communities Receivers Observers Global node reputation matrix Post-disaster communication network Situation analysis Delay Tolerant Network Observer node Reputation estimation Selfish node Cryptography Data communication Group-bias Monitoring
Content Type	Text
Resource Type	Article

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