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DTN is a type of network with the routing strategy of storage and forward. Owing to the character of high latency, low transfer rate and intermittent connectivity, it is difficult to maintain the reliability of end to end paths. Hence the research of DTN protocol is meaningful and critical. In this paper, we assume a vehicle network scenario in the disaster. There exists significant performance degradation...
The flaws of ARP protocol, the kinds of ARP attack and the major existing defensive technologies are analyzed in details. Due to the cost of existing defensive technologies is too high; therefore, we design and develop a light-weight tool based on Linux platform. It is suitable for most users because it can detect and defend the ARP attacks accompany with very small extra overhead. Moreover, it is...
In order to encourage peers to contribute resources for P2P networks, the paper proposed an incentive mechanism to suppress whitewashing which is not overcome by reputation systems. Game-theoretic analysis reveals that the conventional Tit-for-Tat is not an evolutionary stable strategy in P2P systems including some whitewashers. It also indicates that an improved Tit-for-Tat integrating an appropriate...
As a common technology for fault tolerance and load balance, rollback-recovery faces the challenges of scalability and inherent variability in those long-running large-scale applications with grids as the computing infrastructure. Among the rollback recovery schemes, pessimistic message logging protocols (PMLPs) and coordinated checkpointing protocols (CCPs) are the most popular in practice. Although...
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