—This paper presents an overview of the ORBIT (Open Access Research Testbed for Next-Generation Wireless Networks) radio grid testbed 1 , that is currently being developed for scalable and reproducible evaluation of next-generation wireless network protocols. The ORBIT testbed consists of an indoor radio grid emulator for controlled experimentation and an… (More)
This paper presents the software architecture of the ORBIT radio grid testbed 1. We describe the requirements for supporting the lifecycle of an experiment and how they influenced the overall design of the architecture. We specifically highlight those components and services which will be visible to a user of the ORBIT testbed.
A t this point in technology's evolution, the simplicity, elegance, extensibility, and broad compatibility of the Internet protocol suite has made it the automatic choice for most forms of communication. From Web browsing to enterprise computing, from electronic mail to next-generation wireless tele-phony, the common denominator is " everything over IP. "… (More)
In this paper we present ORBIT measurement library (OML), which is a distributed software framework enabling real-time collection of data in a large distributed environment. The success of a multiuser distributed testbed facility depends largely on the ease of use, remote access as well as on the ease of collecting useful measurements from experimental… (More)
Web-based enterprises process events generated by millions of users interacting with their websites. Rich statistical data distilled from combining such interactions in near real-time generates enormous business value. In this paper, we describe the architecture of Photon, a geographically distributed system for joining multiple continuously flowing streams… (More)
One of the major threats that an enterprise Information system networks are facing today is the Insider threat. As part of the Insider Threat study, lack of an effective access control mechanism is identified as one of the major causes that facilitated IT sabotage. In this paper we propose a network access control meta model as per ISO/IEC security… (More)
We present a framework for monitoring enterprise wireless networks using desktop infrastructure. The framework is called DAIR, which is short for <i>Dense Array of Inexpensive Radios</i>. We demonstrate that the DAIR framework is useful for detecting rogue wireless devices (e.g., access points) attached to corporate networks, as well as for detecting Denial… (More)