In opportunistic networks the availability of an end-to-end path is no longer required. Instead opportunistic networks may take advantage of temporary connectivity opportunities. Opportunistic networks present a demanding environment for network emulation as the traditional emulation setup, where application/transport endpoints only send and receive packets from the network following a black bo...

Approximate Bayesian Computation (ABC) is a family of statistical inference techniques, which is increasingly used in biology and other scientific fields. Its main benefit is to be applicable to models for which the computation of the model likelihood is intractable. The basic idea of ABC is to empirically approximate the model likelihood by using intensive realizations of model runs. Due to co...

The article deals with the idea of computer emulation using the GPGPU technology in order to get performance improvements. Basic assumptions for using stream processing in computer emulation effectively are discussed and the structure of an emulator, together with the emulation technique are proposed. The emulator structure, in this case, is of distributed nature, so the communication issues ar...

This paper considers the use of emulation for digital preservation. After describing the theoretical background provided by mathematical logic, the paper moves on to consider practical issues in the use of emulation for digital preservation.

Researchers and developers have long faced a fundamental tension between the experimental realism of wireless testbeds on one hand, and the control and repeatability of simulation on the other hand. This thesis introduces physical layer wireless network emulation – a new approach to wireless network experimentation that balances the stark tradeoff of traditional alternatives by enabling both re...

In the last few years, many emulation systems have been developed to help researchers evaluate the effectiveness of new protocols and applications in realistic network scenarios. NEPTUNE (Network Emulation for Protocol TUNing and Evaluation) is a flexible and scalable system developed at University of Napoli for the emulation of different network scenarios by means of a cluster of workstations....

PROTOFLEX is an FPGA-accelerated hybrid simu-lation/emulation platform designed to support large-scale multiprocessor hardware and software research. Unlike prior attempts at FPGA multiprocessor system emulators, PROTOFLEX emulates full-system fidelity—i.e., runs stock commercial operating systems with I/O support. This is accomplished without undue effort by leveraging a hybrid emulation techn...

The increasing need of protocol development environments and network performance evaluation tools gives rise to the research of flexible, scalable, and accurate network emulators. The desired network emulator should be able to facilitate the emulation of either wireline or wireless networks. In the case when network topology is critical to the underlying network protocol, the emulator should pr...