@conference {
	title = {Integrated Management of Large Satellite-Terrestrial Networks},
	author = {Baras, John S., Ball, Mike., Roussopoulos, Nick., Jang, Kap D., Stathatos, Kostas., Valluri, Jaibharat.},
	year = {1997},
	month = {11/1997},
	abstract = {Hybrid communication networks provide an economically feasible and technologically efficient means to implement the global information infrastructure. The management of such heterogeneous networks is a critical market differentiator for telecommunications companies and a formidable technical task. In this paper we describe our efforts in the Center for Satellite and Hybrid Communications Networks, to design and implement an integrated network management system for such networks. The major accomplishments to date are the design and implement an integrated network management system for such networks. The major accomplishments to date are the design and implementations of an object oriented data model for hybrid networks consisting of satellite networks and terrestrial ATM networks; the extension of the system to hybrid networks with as many as 300,000 nodes; the development of browsing graphical tools so that mesh-connected graph networks (as opposed to tree networks) can be efficiently queried; specifically designed graphical widgets for displaying performance data continuously from the network management information database (MIB); extensions of the GUI to distributed operation including appropriate designs for consistency and concurrency between the GUI display and the network MIB;~storage and organization issues for performance data in the MIB; integration of configuration management and performancce management.},
	address = {Monterey, CA},
	booktitle = {MILCOM \&rsquo;97},
	pages = {383-387}
}
@conference {
	title = {Adaptive Data Broadcast in Hybrid Networks},
	author = {Stathatos, Kostas., Roussopoulos, Nick., Baras, John S.},
	year = {1997},
	month = {08/1997},
	abstract = {With the immense popularity of the Web, the world is witnessing an unprecedented demand for data services. At the same time, the Internet is evolving towards an information super-highway that incorporates a wide mixture of existing and emerging communication technologies, including wireless, mobile, and hybrid networking. Taking advantage of these new technologies, we are proposing a hybrid scheme which effectively combines broadcast for massive data dissemination and unicast for individual data delivery. In this paper, we describe a technique that uses the broadcast medium for storage of frequently requested data~and an algorithm that continuously adapts the broadcast content to match the hot-spot of the database. We show that the hot-spot can be accurately obtained by the monitoring the "broadcast misses" observed through direct requests. This is a departure from other broadcast-based systems which rely on efficient scheduling based on precompiled user profiles. We also show that the proposed scheme performs effectively even under very dynamic and rapidly changing workloads. Extensive simulation results demonstrate both the scalability and versatility of the technique.},
	address = {Athens, Greece},
	booktitle = {Twenty\&ndash;third International Conference on Very Large Databases},
	pages = {pp. 326-335}
}
@conference {
	title = {Adaptive Data Broadcasting Using Air-Cache},
	author = {Stathatos, Kostas., Roussopoulos, Nick., Baras, John S.},
	year = {1996},
	month = {11/1996},
	abstract = {In the Data Air Waves Project at the University of Maryland, we are integrating Direct Broadcast Satellite (DBS) systems with terrestrial networks to provide a hybrid and effective communication substrate lying between data resources and remote/mobile user applications. Smooth integration of these two media balances the need for rapid data dissemination to very large numbers of clients and on-demand interactive data services. This paper describes the air-cache, a method for effective data broadcasting and an algorithm which rapidly adapts the content of the cache based on the "misses" which result in explicit (on-demand) data requests. Simulation results show that the hypothesis of adapting based only on the misses performs quite reasonable and has very little deviation from a system that has complete information - both hits and misses.},
	address = {Rye, New York},
	booktitle = {First International Workshop on Satellite-based Information Services (WOSBIS)},
	pages = {pp. 30-37}
}
@conference {
	title = {Simple Calls for Flexible Constructs Using the Traditional File API},
	author = {Gupta, Sandeep., Baras, John S., Kelley, Steve., Roussopoulos, Nick.},
	year = {1996},
	month = {04/1996},
	abstract = {We present the design for a remote QOS/Control interface to the transport protocol using the read/write calls from the traditional file system API, with simple extensions resulting in a very flexible interface. We limit the interface to the kernel to be read/write, and introduce two cells, atleast~one of which needs to be a system service (dsplice system call or implemented otherwise). These calls use file descriptor as input and output parameters, and because of that have a much more flexible interface than the traditional ioctl/fcntl~interface. The resulting API can be used to construct efficient communication schemes and result in simpler and efficient ways for distributed interaction. Parts of this API have been implemented in our ongoing experiments. The adjoining figures outline the potential for flexibility.},
	address = {New Jersey},
	booktitle = {Open Signaling for ATM, Internet and Mobile Networks Workshop (OPENSIG)},
	organization = {Columbia University}
}
@conference {
	title = {Consistency and Performance of Concurrent Interactive Database Appications},
	author = {Stathatos, Kostas., Kelley, Steve., Roussopoulos, Nick., Baras, John S.},
	year = {1996},
	month = {02/1996},
	address = {New Orleans, Louisiana},
	booktitle = {12th IEEE International Conference of Data Engineering}
}
@conference {
	title = {Hybrid Network Management},
	author = {Baras, John S., Ball, Mike., Karne, Ramesh K., Kelley, Steve., Jang, Kap D., Plaisant, Catherine., Roussopoulos, Nick., Stathatos, Kostas., Vakhutinsky, Andrew., Valluri, Jaibharat., Whitefield, David.},
	year = {1996},
	month = {02/1996},
	abstract = {We Describe our collaborative efforts towards the design the implementation of a next generation integrated network management system for Hybrid networks (INMS/HN).We describe the overall software architecture of the system at its current stage of development. This network management system is specifically designed to address issues relevant for complex heterogeneous networks consisting of seamlessly interoperable terrestrial and satellite networks. Network management systems are~key elements for interoperability in such network. We describe the integration of~configuration management and performance management. In particular, we describe the object~model, issues of the Graphical User Interface (GUI), browsing tools and performance data graphical widget displays, management information database (MIB) organization issues. Several components of the system are being commercialized by Hughes Network System. ~~},
	address = {Washington DC},
	booktitle = {AIAA: 16th International Communications Satellite Systems Conference and Exhibit},
	pages = {pp. 490-500}
}
@conference {
	title = {Integrated Network Management System for Hybrid Networks},
	author = {Baras, John S., Ball, Mike., Karne, Ramesh K., Kelley, Steve., Jang, Kap D., Plaisant, Catherine., Roussopoulos, Nick., Stathatos, Kostas., Vakhutinsky, Andrew., Valluri, Jaibharat., Whitefield, David.},
	year = {1996},
	month = {01/1996},
	abstract = {We describe our collaborative effort towards the design and implementation of next generation integrated network management system for Hybrid networks(INMS/HN).We describe the overall software architecture of the system at its current stage of development.This network management system is specifically designed to address issues relevant for complex heterogeneous networks consisting of seamlessly interoperable terrestrial and satellite networks. Network management systems are a key element for interoperability in such network. We describe the integration of configuration management and performance management. The next step in this integration is fault management. In particular, we describe the object model, issues of the Graphical User Interfaces (GUI), browsing tools and performance data graphical widget displays, management information~database (MIB) organization issues. Several components of the system are being commercialized by Hughes Network Systems.},
	address = {Albuquerque, New Mexico},
	booktitle = {1st Conference of Commercial Development of Space\&rdquo;},
	pages = {pp. 345-350}
}
@conference {
	title = {Next Generation Network Management Technology},
	author = {Atallah, George C., Ball, Mike., Baras, John S., Goli, Shravan., Karne, Ramesh K., Kelley, Steve., Kumar, Harsha., Plaisant, Catherine., Roussopoulos, Nick., Shneiderman, Ben., Mulugu, Srinivasaro., Stathatos, Kostas., Teittinen, Marko., Whitefield, David.},
	year = {1995},
	month = {01/1995},
	abstract = {Today{\textquoteright}s telecommunications networks are becoming increasingly large, complex, mission critical and heterogeneous in several dimensions. For example, the underlying physical transmission facilities of a given network may be "mixed media" (copper, fiber-optic, radio, and satellite); the Sub networks may be acquired from different vendors due to economic, performance, or general availability reasons; the information being transmitted over the network may be "multimedia" (video, data, voice, and images) and, finally, varying performance criteria may be imposed e.g. data transfer may require high throughput while the others, whose concern is voice communications, may require low call blocking probability. For these reasons, future telecommunications networks are expected to be highly complex in their services and operations. Due to this growing complexity and the disparity among management systems for individual sub networks, efficient network management systems have become critical to the current and future success of telecommunications companies. This paper addresses a research and development effort which focuses on prototyping configuration management, since that is the central process of network management and all other network management functions must be built upon it. Our prototype incorporates ergonomically designed graphical user interfaces tailored to the network configuration management subsystem and to the proposed advanced object-oriented database structure. The resulting design concept follows open standards such as Open Systems Interconnection (OSI) and incorporates object oriented programming methodology to associate data with functions, permit customization, and provide an open architecture environment.},
	address = {Albuquerque, New Mexico},
	booktitle = {The 12th Symposium on Space Nuclear Power and Propulsion/Commercialization},
	pages = {pp. 75-82}
}
@conference {
	title = {Design of the MANDATE MIB},
	author = {Haritsa, Jayant., Ball, Mike., Roussopoulos, Nick., Baras, John S., Datta, Anindya.},
	year = {1993},
	month = {04/1993},
	abstract = {A management information database is the heart of a network management system - it provides the interface between all functions of the network management system, and therefore has to provide sophisticated functionality allied with high performance. In this paper, we introduce the design of MANDATE, a database system that is designed to effectively support the management of large enterprise networks. MANDATE proposes to use special characteristics of network management data and transactions, together with recent advances in database technology, to efficiently derive its functionality.},
	address = {San Francisco, California},
	booktitle = {The 3rd International Symposium on Integrated Network Management},
	pages = {pp. 85-96}
}
@article {
	title = {MANDATE:~Managing Networks using Database Technology},
	author = {Haritsa, Jayant., Ball, Mike., Roussopoulos, Nick., Datta, Anindya., Baras, John S.},
	year = {1993},
	month = {12/1993},
	abstract = {In recent years, there has been a growing demand for the development of tools to manage enterprise communication networks. A management information database is the heart of a network management system-- it provides the interface between all functions of the network management system and, therefore, has to provide sophisticated functionality allied with high performance. In this paper, we introduce the design of MANDATE (MAnaging Networks using DAtabase TEchnology), a proposed database system for effectively supporting the management of large enterprise networks. The MANDATE design makes a conscious attempt to take advantage of the special characteristics of network data and transactions, and of recent advances in database technology, to efficiently derive some of the required management functionality.},
	pages = {pp. 1360-1372},
	volume = {Vol. 11},
	number = {No. 9},
	journal = {IEEE Journal on Selected Areas in Communication}
}
