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The worldwide mobile traffic is growing rapidly and more than 90% of the internet traffic relies on the Transmission Control Protocol (TCP) protocol, which is known to have a poor performance over unreliable wireless networks. One of the promising TCP enhancement mechanisms that are being considered by the wireless network operators is the Split-TCP. It is also quite well known that the Split-TCP...
To manage design complexity and provide verification tractability, models of complex cyber-physical systems are typically hierarchically organized into multiple abstraction layers. High-level analysis explores interactions of the system with its physical environment, while embedded software is developed separately based on derived requirements. This separation of low-level and high-level analysis...
Model-Driven Design (MDD) of cyber-physical systems advocates for design procedures that start with formal modeling of the real-time system, followed by the model's verification at an early stage. The verified model must then be translated to a more detailed model for simulation-based testing and finally translated into executable code in a physical implementation. As later stages build on the same...
We present a unified framework for the specification and analysis of mode-change protocols used in multi-mode real-time systems. We propose a highly expressive formalism, called MCP, to model the system behavior during mode transitions, and show how various existing mode change protocols can be described as MCPs. The explicit representation of the MCP model provides a means to analyze the system state...
The paper presents a model for multi-mode real-time applications and develops new techniques for the compositional analysis of systems that contain multiple such applications. An algorithm for constructing an interface for a single multi-mode application is presented. Then, a method for computing an interface of a composite application is presented, which uses only the interfaces of constituent applications...
Modular robots are a powerful concept for robotics. A modular robot consists of many individual modules so it can adjust its configuration to the problem. However, the fact that a modular robot consists of many individual modules makes it a highly distributed, highly concurrent real-time system, which are notoriously hard to program. In this work, we present our programming framework for writing control...
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