Large scale change of enterprise level architecture and infrastructure presents a challenge, especially in today's networked world. The challenges of today’s enterprise information systems are somewhat unique, compared to when the electronic computer emerged nearly 70 years ago. An early challenge was to stabilize computer technology in the first decade or so. Once it was stabilized, the next c...

—————————— ✦ —————————— One of the most challenging and interesting recent trends in the computer and telecommunications industries is the integration of mobile communications and computing. The resulting distributed network, referred to as a mobile computing system, is in more that one way fundamentally different from conventional wired computer networks. Wireless connectivity enhances the fun...

The overarching theme of my research is on algorithms, analysis, and application of statistical signal processing tools to dynamic network health monitoring, social, power grid, and Big Network Data analytics. Experience, background, and current research include robust, distributed, and sparsity-aware learning from high-dimensional network data; which finds exciting applications in understandin...

Massively multiplayer online games and other multi-user based networked applications are becoming a big business today. Such kind of technology has long been researched in the area called Networked Virtual Environments (Net-VE). With the recent deployment of broadband access technologies, the increase of the number of participants is putting pressure on the Net-VE systems. The conventional syst...

The safety critical nature of traffic infrastructure requires that it be secure against computer-based attacks, but this is not always the case. We investigate a networked traffic signal system currently deployed in the United States and discover a number of security flaws that exist due to systemic failures by the designers. We leverage these flaws to create attacks which gain control of the s...

Replicating data and services at multiple networked computers increases the service availability of distributed systems. This paper presents the design and implementation architecture of a replication mechanism for a distributed multimedia system medianode which is currently developed as an infrastructure to share multimedia-enhanced teaching materials among lecture groups. With the replica-tio...

This paper presents an overview of the Future Urban Mobility programme of the Singapore-MIT Alliance for Research and Technology (SMART). Through this programme, MIT is establishing a research centre in Singapore with the mission to support sustainability and improve transportation system performance through innovations in infrastructure, technology, operations and policy. Two key areas of rese...

Ecological observatories are a new class of multiuser research infrastructure designed and deployed to address a broad range of continental-scale ecological questions that until only recently were not technologically feasible. These highly networked ecological observatories, spread across the United States and featuring a diverse integration of programmable sensing capabilities and remote obser...

Cooperating systems are systems of systems that collaborate for a common purpose. In this work, we consider networked cooperating systems that base important decisions on data gathered from external sensors and use external actuators to enforce safety critical actions. Typical examples of cooperating cyberphysical systems are critical infrastructure process control systems. Such systems must no...

Systems of systems that collaborate for a common purpose are called cooperating systems. Typical examples of novel cooperating systems are electronic health systems and electronic money transfer systems but also critical infrastructures, such as future vehicular ad hoc networks and distributed air traffic management systems. Business processes and technical workflows control the cooperation of ...