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Research Interests

Our current research deals with problems of network and service management within distributed networking environments. Connection management, bandwidth management, security management and quality of services management are important aspects of ATM-based virtual networks. Our work involves object-oriented UML-Fusion specification, design and implementation of service and network management environments within the OSI, Internet, TMN, ODP and CORBA abstract frameworks. Our current emphasis is on multimedia QoS and connection services and management using the above-mentioned methodologies. 

ATM-based Virtual Private Networks

We are concerned with design of connection and bandwidth management system architectures for ATM-based logical private network services. Specifically, we are interested in distributed management systems that allow users to build real-time on-demand logical private networks using the service provider and network provider management systems. Virtual services are specified and designed using the methodology of object-oriented software engineering. We are also concerned with interactions among the user, service provider and network provider management information systems. 

Service and Network Management Architectures

We construct here generic service architecture using generic component models consistent with TINA-C. Generic service component and generic management components are developed first, followed by an architecture of a complex service. Multimedia Service QoS Architecture is developed using the generic models. Object-Oriented specification and design methodology is used throughout.

Service Management for Multimedia Applications

In this research based the generic service and management architecture, we introduce Multimedia Service and Management Architecture using multimedia service APIs over CORBA platform. The underlying network is assumed to be an ATM. The multimedia QoS and connection service components as well as component interactions between the service and management planes across the TMN layers are developed. The multimedia QoS parameters are mapped from the user requests down to service and network management components and finally to ATM switch element SNMPv2 MIB objects. 

Security Management Systems for Virtual Networks

Interaction among user, service and network provider systems to provide virtual connection, bandwidth and service quality management to end-users is critically important and is often highly proprietary. Well-developed security procedures and protocols are needed to insure the security and integrity of these services. Our research in this area is concerned with architectures for authorization, access control and confidentiality procedures. We are also concerned with security protocols and construction of a generic security server. 
The goal of this research is also to provide real-time, on-demand, fast reconfiguration services for battlefield communication networks. Dynamic connection and configuration are being explored as well as the quality of management services. 

Mobile Agent and Component based Software Engineering Pattern Based Software Design

In this research, we develop software architectures using mobile components and middleware services. This architecture is applied to various distributed software solutions including network connection service management. We also investigate the intelligence and scheduling properties of such mobile components.

Selected Recent Publications

"An architecture for Realizing CORBA Audio/Video Stream Specification Over IP Technologies",  (with S. Yucel), IEEE Globecom 2001, San Antonio Texas, November 2001

"Connection Management in MPLS Networks using Mobile Agents",  (with S. Yucel), International Conference on Networking ICN'01, Colmar, France, July 2001

"SLA specification using XML for services over IP technologies",  (with S. Yucel), Proc. Of The International Conference on Parlallel and Distributed Techniques and Applictaions, Las Vegas, June 2001

"A Scalable Software Architecture for Open, Front-End Based Application Provider Services",  (with K. Nogami, T. Igakura, T. Egashira and Y. Kiriha), Journal of Network and System Management, under review

"An Agent-Oriented Approach to Service Management in MPLS Networks",  (with S. Yucel), Annual Review of Communications, International Engineering Consortium, Volume 54, 2001

"An Architecture for Secure Group Management of Multicast Communications",  (with S. Yucel), Annual Review of Communications, pp. 727-733, Vol. 52, 1999.

"A Mobile Agent Oriented Approach to Distributed Service Management", (with S. Yucel) IC-AI'99 on Applications of Artificial Intelligence Techniques in Telecommunications Network Management Systems, Las Vegas, June 28- July 1, 1999.

"QOS Management of Multimedia Services Using ATM MIB Objects", (with S. Yucel), Journal of Networking and Information Systems, vol2, no2, July 1999.

"A Multimedia Service and Management Architecture using APIs over CORBA Platform" (with S. Yucel and T. Kusano). Proceedings EMAST'98, Berlin, Germany, May 1998

"A Component-Based Distributed Software Architecture for Multimedia Services" (with S. Yucel and T. Kusano) Proc. of Workshop on Compositional Architectures, Monterrey, CA. January 1998

"Multimedia QoS Service and Management using CORBA/JAVA Platform", (with S. Yucel and T. Kusano), Annual Review of Communications, International Engineering
       Consortium, 1998, v51, p715-723.

"A Generic Multimedia Service and Management Architecture" Journal of Network and Systems Management Vol.5.No.3. 1997

"Mapping QoS Parameters for Multimedia Services using ATM SNMP MIB Objects" (with T. Kusano, and S. Yucel). Proceedings ICC'98, Atlanta, GA. 1998

"Design of a CMIP/SNMPV2 Proxy Gateway for Management Interoperability" (with R. Sirsikar). J. Networks and Systems Management Vol.6 No.2 1998

"Secure Service Management in Virtual Service Networks" (with Hai Qu). Proceedings of ISINM 97, California, May 1997

"Security of Service Management-A Generic Approach to Secure Communications within OSI" (with H. Qu). Proc. International Management Conference, IMÕ97,May 1997

"A Service Management Architecture" (with X.Logeen and S.Znaty). Proceedings of ICT97 International Conference on Telecommunications Melbourne, Australia, April 1997

"From Networks and Network Management Into Service and Service Management" (with T. Magedanz). Guest Editorial, Journal of Network and Systems Management, Vol.4, No.4, 1996

"Integrating Performance Evaluation and Formal Specification" (with J. Martins and J.P.Hubaux). Proceedings ICC '96, July 1996

"An Object-Oriented Open Service Management Architecture" Proceedings ECOOP 96, July 1996

"Applying an Object-Oriented method to design a VPN Bandwidth Management System" (with J.P. Gaspoz, P.A.Etique, and J.P.Hubaux). Annuals of  Telecommunication, Summer 1995

"Design of a Bandwidth Management System for ATM-based VPNs" (with J. G. Gaspoz, P. A. Etique, and J. P. Hubaux). Integrated Network Management IV, A.S.Sethi et al (eds.), 344-355 (1995).

"Validation of an Object-Oriented Service Specification for the IN Networks" (with P. A. Etique, J. P. Gaspoz, and J. P. Hubaux). Proc. Tina 95 Conf. (1995).

"Specification and Design of a Gateway for ATM-Frame Relay Interoperability" (with A. Mayorga). Proc. Interworking 94 (1994).

"Specification of a Management System for ATM-based Virtual Private Networks" (with J. P. Gaspoz ,and J. P. Hubaux). Proc. 3rd Intl. Conf. on Computer Communications (1994).

"Encapsulation versus Protocol Mapping in ATM Interworking with Frame Relay" (with A. Mayorga). Annual Review of Communications, 748-755 (1994).

"Applying the OSI Reference Model MAP/TOP/GOSIP Profiles" Proceeedings of International Zurich Seminar on Digital Communications, March 1988.

"Token Bus/Ring Local Area Management Concepts and Architecture" (with Adarsh Sethi). Proceedings IEEE Infocom '87", San Francisco, CA. March 1987.

"Performance Analysis of Token Ring Local Area Networks" (with Adarsh Sethi). Journal of Computer Networks and ISDN Systems. Vol. 9, No. 3, March 1985.

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Last updated: May 2002
Tuncay Saydam, saydam@cis.udel.edu Tel: (302) 831-2716 Fax: (302)831-8458
The University of Delaware
Computer and Information Sciences Department
Newark, DE. 19716 USA