Efficiency of large - scale DC - networks

نویسنده

  • Anna Krasnova
چکیده

DC-networks offer desirable properties for anonymous communication, but a practical implementation for large networks is challenging. Other approaches like Tor exist and are easier to use in large networks, but they do not provide strong anonymity. This thesis describes a design for a DC-network implementation that targets large networks. It does not offer new methods to counter attacks, but it does overcome practical limitations and bottlenecks of classical DC-networks. A prototype implementation is provided which uses this design and which can be used in future research on large-scale DC-networks. Scheduling has a crucial influence on the throughput of large DC-networks, since all clients share a single communication channel. A novel scheduling algorithm, called Fingerprint scheduling, is presented, which efficiently organizes access to this shared channel while being stable in the face of unreliable client connectivity. Using simulations, the performance of this algorithm is compared to the performance of existing scheduling protocols for up to 50, 000 clients. The results show that Fingerprint scheduling is the scheduling algorithm of choice for large DC-networks.

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تاریخ انتشار 2014