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In this paper we describe a new version of our distributed network emulator that extends an existing kernel level emulator called IMUNES. IMUNES is based on a lightweight virtual machine concept and performs zero copying when packets traverse through the emulated topology. It works on a modified FreeBSD kernel and enables emulated nodes to use the standard(More)
—Single carrier frequency domain equalization (SC-FDE) uses cyclically prefixed quadrature amplitude modulation to permit simple frequency domain equalization at the receiver. Link adaptation for SC-FDE systems, where the modulation and coding rate are adapted based on the current channel state, is straightforward with perfect channel state information due(More)
High-throughput DNA sequencing technologies allow fast and affordable sequencing of individual genomes and thus enable unprecedented studies of genetic variations. Information about variations in the genome of an individual is provided by haplotypes, ordered collections of single nucleotide polymorphisms. Knowledge of haplotypes is instrumental in finding(More)
IMUNES, a fast integrated network emulator/simulator, presents an excellent replacement for the general purpose network test-bed since it increases scalability while providing support for real applications and protocols, as well as decreasing the cost of equipment and management. However, working on one machine only the scalability of IMUNES is limited,(More)
Hierarchical Internet-like topology generators reflect the hierarchical structure of the Internet, but they neglect the power law property of Internet topologies. On the other hand, common power law topology generators obey the power law, but they do not provide support for different types of nodes. In this paper, we propose a new algorithm for creating(More)
Constant inventions in the field of distributed systems raise up the demands on network simulators. Resources needed for simulation of thousands to millions of nodes can be provided only by making simulators distributed. In the design process of distributed systems scalability and transparency present the key requirements. Some of the existing models for(More)
In recent years, advancements in high-throughput DNA sequencing technologies enabled heretofore impractical studies of genetic variations. Cells of diploid organisms, including humans, have a number of chromosome pairs that are homologous - they encode essentially the same genetic information and are almost identical but vary in certain location. These(More)
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