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Opportunistic routing is a new design trend of wireless network routing protocol. It takes good advantages of the broadcast nature of wireless network. The source can use multiple potential paths to deliver the packets to the destination. The routing metric used for selecting the forwarder lists is very important for designing the opportunistic routing(More)
DNS has been increasingly abused by adversaries for cyber-attacks. Recent research has leveraged DNS failures (i.e. DNS queries that result in a Non-Existent-Domain response from the server) to identify malware activities, especially domain-flux botnets that generate many random domains as a rendezvous technique for command-&-control. Using ISP network(More)
Sampling of large social graphs is used for addressing infeasibility of measurements in large social graphs, or for crawling graphs from online social network services where accessing an entire social graph at once is often impossible. Sampling algorithms aim at maintaining certain properties of the original graphs in the sampled (or crawled) ones. Several(More)
Opportunistic routing is a new design trend of wireless routing, which can dramatically improve the end-toend throughput over traditional routing by judiciously utilizing the broadcasting nature of wireless network. However, the global scheduling scheme it adopts restricts its application in large-scale wireless network, due to the big waste of the(More)
Transit providers play a key roll in the formation and evolution of the Internet ecosystem. In this paper, we incorporate economical considerations into the study of the dynamics of the transit networks, under the premise of multipath interdomain routing. We model the dynamics as a result of individual profit optimization under capacity constraints, and(More)
The slow convergence under intra-domain link or router failures is a challenge for latency-sensitive applications in the IP networks. A variety of IP Fast Re-Route (IPFRR) schemes have been proposed to address the issue in the literature. Our paper reviews several of these IPFRR schemes: Loop Free Alternate, U-Turn Alternate, and in particular, NotVia(More)
The Internet content delivery market has been positioned for tremendous growth. To capture the essentials of pricing structures in this market, we develop an economic model incorporating prices with provider investments in the demand function, and obtain equilibrium prices and investments under both monopoly and competitive settings for transport providers.(More)
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