Topic
Testbed
About: Testbed is a research topic. Over the lifetime, 10858 publications have been published within this topic receiving 147147 citations. The topic is also known as: test bed.
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TL;DR: This work presents WebSOS, a novel overlay-based architecture that provides guaranteed access to a web server that is targeted by a denial of service (DoS) attack, and extends this system with a credential-based micropayment scheme that combines access control and payment authorization in one operation.
69 citations
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03 Nov 2011TL;DR: A flexible-bandwidth network testbed with a real-time adaptive control plane that adjusts modulation format and spectrum-positioning to maintain QoS and high spectral efficiency is demonstrated.
Abstract: We demonstrate a flexible-bandwidth network testbed with a real-time adaptive control plane that adjusts modulation format and spectrum-positioning to maintain QoS and high spectral efficiency. A low-speed supervisory channel and FPGAs enable real-time impairment detection.
69 citations
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01 Jul 2017
TL;DR: This paper highlights the Message Queue Telemetry Transport (MQTT) as a lightweight protocol suitable for the industrial domain, presenting a comprehensive evaluation of different security mechanisms that could be used to protect the MQTT-enabled interactions on a real testbed of wireless sensor motes.
Abstract: Massive advancements in computing and communication technologies have enabled the ubiquitous presence of interconnected computing devices in all aspects of modern life, forming what is typically referred to as the “Internet of Things”. These major changes could not leave the industrial environment unaffected, with “smart” industrial deployments gradually becoming a reality; a trend that is often referred to as the 4th industrial revolution or Industry 4.0. Nevertheless, the direct interaction of the smart devices with the physical world and their resource constraints, along with the strict performance, security, and reliability requirements of industrial infrastructures, necessitate the adoption of lightweight as well as secure communication mechanisms. Motivated by the above, this paper highlights the Message Queue Telemetry Transport (MQTT) as a lightweight protocol suitable for the industrial domain, presenting a comprehensive evaluation of different security mechanisms that could be used to protect the MQTT-enabled interactions on a real testbed of wireless sensor motes. Moreover, the applicability of the proposed solutions is assessed in the context of a real industrial application, analyzing the network characteristics and requirements of an actual, operating wind park, as a representative use case of industrial networks.
69 citations
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05 May 2003TL;DR: A middleware architecture for coordination services in sensor networks that facilitates interaction between groups of sensors which monitor different environmental events sits on top of the native routing infrastructure and exports the abstraction of mobile communication endpoints maintained at the locations of such events.
Abstract: In this paper, we present a middleware architecture for coordination services in sensor networks that facilitates interaction between groups of sensors which monitor different environmental events. It sits on top of the native routing infrastructure and exports the abstraction of mobile communication endpoints maintained at the locations of such events. A single logical destination is created and maintained for every environmental event of interest. Such destinations are uniquely labeled and can be used for communication by application-level algorithms for coordination and sensory data management between the different event locales. For example, they may facilitate coordination, in a distributed intrusion scenario, among nodes in the vicinity of the intruders.We evaluate our middleware architecture using GloMoSim, a wireless network simulator. Our results illustrate the success of our architecture in maintaining event-related communication endpoints. We provide an analysis of how architectural and network dependent parameters affect our performance. Additionally we provide a proof of concept implementation on a real sensor network testbed (Berkeley's MICA Motes).
69 citations
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TL;DR: This paper surveys recent results in cyber-physical systems and mainly focusses on three important categories: attack detection, attack design and secure estimation and control.
Abstract: Cyber-physical systems (CPSs) are integrations of computation, communication, control and physical processes. Typical examples where CPSs are deployed include smart grids, civil infrastructure, medical devices and manufacturing. Security is one of the most important issues that should be investigated in CPSs and hence has received much attention in recent years. This paper surveys recent results in this area and mainly focusses on three important categories: attack detection, attack design and secure estimation and control. We also discuss several future research directions including risk assessment, modeling of attacks and attacks design, counter-attack strategy and testbed and validation.
69 citations