Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"Network Emulation"”.
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Lunar: A User-Level Stack Library for Network Emulation
The primary issue with developing new networking protocols is testing how the protocol will behave when deployed on a large scale; of particular interest is how it will interact with existing protocols. Testing a protocol using a network simulator has drawbacks. First, the protocol must be written …
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Neural network emulation of temporal second order linear difference equations
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1991.
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An Adaptive Time Window Algorithm for Large Scale Network Emulation
With the continuing growth of the Internet and network protocols, there is a need for Protocol Development Environments. Simulation environments like ns and OPNET require protocol code to be rewritten in a discrete event model. Direct Code Execution Environments (DCEE) solve the Verification and …
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LARGE SCALE NETWORK PROTOCOL EMULATION ON COMMODITY CLOUD
Network emulation allows us to evaluate network protocol implementations, typically in higher fidelity than simulations. Most emulators allow execution of code in the platform or environment similar to the target platform on which the protocol will be deployed. This advantage comes at a cost. …
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Controlled virtual time advancement in conjoined emulation and network simulation
Emulations of network services are more accurate than simulated models. However this is achieved at an increased computational cost. Combining emulation with simulation allows more accurate, controllable and repeatable evaluation of applications but such hybrid systems are generally not scalable. …
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Abstractions and Algorithms for Control of Extensible and Heterogeneous Virtualized Network Infrastructures
Virtualized network infrastructures are currently deployed in both research and commercial contexts. The complexity of the virtualization layer varies greatly in different deployments, ranging from cloud computing environments, to carrier Ethernet applications using stacked VLANs, to networking …
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Assessing GridSim for modeling the global distribution of next-generation astronomy data
… suited for the simulation project are: a) a network extension claiming realistic network communication; b) an extendable application programming interface because of the Java programming language; c) a datagrid extension that simulates distributed data storage, and tasks for managing the …
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Large-scale and high-fidelity wireless network simulation and emulation
Large-scale networks, such as the Internet, cellular networks, play critical roles in today's life. The advancement of large-scale computer and communication networks heavily depends on the successful transformation from in-house research efforts to real productions. When studying these network …
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Temporal synchronization of emulated and simulated models for assessment of networked systems
"Network experimentation practices rely on emulation or simulation methods to test new ideas. But it is difficult to exclusively simulate or emulate a broad class of emerging cyber-physical applications without incurring significant cost or loss of fidelity. This is because they involve complex …
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The Distributed Open Network Emulator: Applying Relativistic Time
The increasing scale and complexity of network applications and protocols motivates the need for tools to aid in the understanding of network dynamics at similarly large scales. While current network simulation tools achieve large scale modeling, they do so by ignoring much of the intra-program …
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Resource allocation and NFV placement in resource constrained MEC-enabled 5G-Networks
The fifth-generation (5G) of mobile communication networks are expected to support a large number of vertical industries requiring services with diverging requirements. To accommodate this, mobile networks are undergoing a significant transformation to enable a variety of services to coexist on the …
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Network-simulation-based evaluation of smart grid applications
… new “smart grid” is not a physically isolated network like the older power grid was, but a complicated network of networks. That greatly increases the security concerns, ranging from hackers who gain access to control networks or create denial-of-service attacks on the networks themselves, to …
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New Security Paradigms for Spacecraft and Networks: Metrics, Testbeds, and Scalable Solutions
… further into space, the emerging heterogeneous networks that interconnect these systems face significant challenges in security and resilience—areas often discussed but infrequently demonstrated. This dissertation addresses these challenges through four primary contributions. First, it presents …