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.

A framework for low-power IPv6 routing simulation, experimentation, and evaluation

Abstract: Low-power networked devices, such as sensors and actuators, are becoming a vital part of our everyday infrastructure. Being networked, the continued development of these systems needs involvement from the networking community. We present a framework for simulation, experimentation, and evaluation of routing mechanisms for low-power IPv6 networking. The framework provides a detailed simulation environment for low-power routing mechanisms, and allows the system to be directly uploaded to a physical testbed for experimental measurements.

Cognitive cars: constructing a cognitive playground for VANET research testbeds

Abstract: Simulation today plays a key role in the study and understanding of extremely complex systems, which range from transportation networks to virus spread, and include large-scale vehicular ad hoc networks (VANETs). Regarding VANET scenarios, until very recently, simulation has represented the only tool with which it was possible to estimate and compare the performances of different communication protocols. In fact, it was not possible to thoroughly test on the road any VANET-based multi-hop communication system, as no highly dense vehicular testbed exists to this date. This situation has recently changed, with the introduction of a new COGNITIVE approach to VANET systems research, where it has been shown that it is possible to perform realistic experiments using only a few real vehicular resources (i.e., only a few vehicles that are equipped with wireless communication interfaces). Now, the scope of this paper is to show that it is possible to move further ahead along this recently drawn path, utilizing the features provided by cognitive network technologies. In particular, we will show that cognitive interfaces can play a role as an additional tunable dimension to be used within an experimental platform where highly dense vehicular testbeds can be structured, even in the presence of a few real vehicular resources. The advantage is twofold: (a) they can be used to test new strategies for dealing with the scarcity of spectrum in a very dynamic environment as the vehicular one is, and, (b) they can be used to test the performances of VANET protocols as a function of different frequencies and interface switching delays. As an example of how this can be done, we will provide preliminary results from a set of experiments that have been performed with a highway accident warning system and with a cognitive network based on the Microsoft Software Radio (SORA) technology.

WHYNET: a hybrid testbed for large-scale, heterogeneous and adaptive wireless networks

Abstract: We present an overview of the WHYNET (Wireless HYbrid NETwork) testbed, currently being developed for realistic and scalable evaluation of next-generation wireless network protocols and applications. WHYNET framework enables seamless integration of physical, simulation and emulation components in a single framework, and allows the use of any combination of those components when evaluating a target wireless network scenario. In this article, we describe the rationale behind our hybrid testbed approach, and give an overview of the architectural components of the hybrid testbed and key technical challenges addressed in its design. Further, we present several case studies to demonstrate the value of the hybrid testbed for realistic and scalable evaluation of a broad range of wireless network scenarios, focusing on cross-layer interactions, heterogeneous and large-scale wireless networks.

SkyRAN: a self-organizing LTE RAN in the sky

Abstract: We envision a flexible, dynamic airborne LTE infrastructure built upon Unmanned Autonomous Vehicles (UAVs) that will provide on-demand, on-time, network access, anywhere. In this paper, we design, implement and evaluate SkyRAN, a self-organizing UAV-based LTE RAN (Radio Access Network) that is a key component of this UAV LTE infrastructure network. SkyRAN determines the UAV's operating position in 3D airspace so as to optimize connectivity to all the UEs on the ground. It realizes this by overcoming various challenges in constructing and maintaining radio environment maps to UEs that guide the UAV's position in real-time. SkyRAN is designed to be scalable in that it can be quickly deployed to provide efficient connectivity even over a larger area. It is adaptive in that it reacts to changes in the terrain and UE mobility, to maximize LTE coverage performance while minimizing operating overhead. We implement SkyRAN on a DJI Matrice 600 Pro drone and evaluate it over a 90 000 m2 operating area. Our testbed results indicate that SkyRAN can place the UAV in the optimal location with about 30 secs of a measurement flight. On an average, SkyRAN achieves a throughput of 0.9 - 0.95X of optimal, which is about 1.5 - 2X over other popular baseline schemes.

Real-time co-simulation testbed for micro grid cyber-physical analysis

Abstract: This paper provides an overview of the development of a real-time cyber-physical testbed for analyzing the impact of cyber events on the critical loads in a microgrid. A real-time, cyber-physical co-simulation testbed utilizing a Real Time Digital Simulator (RTDS) for simulating the power system, Common Open Research Emulator (CORE) for emulation of the communication network, and a TCP/IP based interface is used in this work. The testbed is used to simulate a Army microgrid based model for validation. Cyber-physical system simulation results demonstrates the ability of the testbed to implement the cyber attacks and analyze the impact on microgrid.