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Based on the characteristics of three-particle GHZ state, we propose a novel quantum secure direct communication scheme(QSDC). In the process of security check, both sides of communication detect single particle with the entanglement properties between the particles. The number of possible quantum states has greatly increased and there are more errors when the check particles are attacked. The error...
Sensor networks are often deployed more densely than would be minimally required. In such cases, node scheduling protocols can be used to determine which nodes are active, and which nodes sleep so as to conserve energy and prolong network lifetime. A drawback of node scheduling approaches, however, is delay due to node or communication failure(s), and subsequent wake-up of replacement node(s), during...
In this paper, we systematically study a fundamental tradeoff for TCP friendliness: in order for a congestion control protocol to maintain a certain degree of TCP friendliness, the longer its smoothness timescale is, the lower its average sending rate should be. This throughput-smoothness tradeoff exists not only for the traditional definition of TCP friendliness but also for any congestion control...
While the current definition of TCP friendliness has enabled a wide variety of traffic control protocols other than TCP, it still considerably restricts the design space of TCP-friendly traffic control protocols. For example, some multimedia streaming applications prefer a smooth sending rate on a time scale of minutes, however, a UDP flow maintaining a smooth sending rate on such a long time scale...
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