ACM MSWiM 2007


Tutorial Co-Chairs

Stephan Olariu,
Old Dominion University, USA
Hsiao-Hwa Chen,
National Sun Yat-Sen University, Taiwan

The 10th ACM MSWiM 2007 Symposium includes the following tutorials:

Date: Monday (morning), October 22nd, 8:30am-12:30pm

Tutorial 1: "Wireless Sensor Networks and Applications"
Prof. Stephan Olariu, Old Dominion University, Norfolk, Virginia

(more info about this tutorial and speaker Bio)

Date: Monday (afternoon), October 22nd, 1:30pm-5:30pm

Tutorial 2: "Realistic Simulation of Urban Mesh Networks with the UDelModels Simulators " (CANCELED)

Stephan Bohacek, Department of Electrical and Computing Engineering, University of Delaware, USA

(more info about this tutorial and speaker Bio)

Date: Monday (afternoon), October 22nd, 1:30pm-5:30pm

Tutorial 3: "Performance Modeling and Radio Resource management Techniques for Wireless Cellular Networks"(CANCELED)

Nidal Nasser, Department of Computing and Information Science, University of Guelph, Ontario, Canada

(more info about this tutorial and speaker Bio)

Date: Monday (morning), October 22nd, 8:30am-12:30pm

Tutorial 4: "New Directions in the Design of Secure Wireless Systems using Chaotic SIgnals and Interference Mitigation Techniques"(CANCELED)

Peter Stavroulakis, Technical University of Crete (TUC), Greece

(more info about this tutorial and speaker Bio)

Tutorials Information


" Wireless Sensor Networks and Applications"

The advent of nano-technology has made it technologically feasible and economically viable to develop low-power devices that integrate general-purpose computing with multi-purpose sensing and wireless communications capabilities. It is expected that these small devices, referred to as sensor nodes, will be mass-produced and deployed, making their production costs negligible. Individual sensor nodes have a small, non-renewable power supply and, once deployed, must work unattended. For most applications we envision a massive deployment of sensor nodes, perhaps in the hundreds or even thousands. Aggregating sensor nodes into sophisticated computational and communication infrastructures, called wireless sensor networks (WSN, for short), will have a significant impact on a wide array of applications ranging from military, to scientific, to industrial, to health-care, to domestic, establishing ubiquitous wireless sensor networks that will pervade society redefining the way in which we live and work.

The tutorial is intended for a broad audience consisting of graduate students, engineers working in networks, researchers in computer science, computer engineering, electrical engineering, as well as administrators and developers in telecommunication industry. The tutorial is directed to both people in the area, who are interested in some aspect of wireless networking that is complementary to their activity, and people that want to approach and get a general view of this new and booming area.

Stephan Olariu, Old Dominion University, Norfolk, Virginia

Professor Stephan Olariu is a tenured full professor in Computer Science at Old Dominion University, Norfolk, Virginia. He is a world-renowned technologist in the areas of parallel and distributed systems, parallel and distributed architectures and networks. He was invited and visited more than 120 universities and research institutes around the world lecturing on topics ranging from wireless networks and mobile computing, to biology-inspired algorithms and applications, to telemedicine, to wireless location systems, and vehicular networks. Professor Olariu is the Director of the Vehicular Networking Research Group at Old Dominion University. Prof. Olariu is an Associate Editor of Networks, International Journal of Foundations of Computer Science, and serves on the editorial board of Journal of Parallel and Distributed Computing and as Associate Editor of IEEE Transactions on Parallel and Distributed Systems

"Realistic Simulation of Urban Mesh Networks with the UDelModels Simulators"(CANCELED)

While mesh networks are rapidly being deployed throughout the world, little is known about their performance. This lack of knowledge is partly due to the fact that wireless network simulators such as ns-2, Qualnet, and OpNet cannot realistically simulate propagation and mobility in urban areas. However, the recently completed UDelModels ( provides realistic simulation of urban mesh networks. Specifically, the UDelModels is a suite of tools for realistic simulation of urban mesh networks. Included in this suite is a propagation simulator, a realistic mobility simulator, tools to build city maps, and several other tools for visualizing and designing mesh networks. The propagation simulator is based on ray-tracing, but also uses the attenuation factor model. This simulator accounts for reflections off of buildings and the ground, transmission through building walls, and diffraction over and around buildings. The urban mobility simulator models both people and vehicles. Unlike other mobility models, the UDelModels mobility simulator is entirely based on surveys. For example, the US Department of Labor and Statistics survey of time use provides detailed information about peoples’ activities and movements throughout the day. There have also been several studies of how people move indoors. Furthermore, there have been extensive studies of the dynamics of cars and people as they navigate to there destinations. For example, these studies determined the relationship between speed and congestion. These mobility models allow detailed analysis of protocol performance. Specifically, it is expected that the performance of a protocol depends on the mobility of the end-hosts. The UDelModels allow simulations to be restricted to certain classes of mobility (e.g., cars, people walking outdoor, etc.). The UDelModels does not performance packet simulation. Rather, it generates mobility and propagation trace files that are compatible with popular packet simulators such as ns-2 and QualNet. It also provide files that can be used in Matlab. This tutorial will cover the basics of urban mobile network simulation, how to use the UDelModels to simulate mesh networks, and how to use the UDelModels to study the performance of networking protocols.

This tutorial will provide an in-depth look at the UDelModels urban mesh network simulator. Specifically, it will cover the rational behind the UDelModels, how to use the various simulation tools, and finally how the tools should be used to analyze the performance of protocols.

This tutorial is intended for researchers working in the area of mesh networks.

Outline of the tutorial:
1. Overview of UDelModels
2. Simulator fundamentals
a. Urban propagation
i. Reflection, diffraction, transmissions
ii. Ray-tracing and the attenuation factor model. Algorithms, computational complexity, and accuracy.
iii. The impact of material and wall construction
iv. Multipath fading, delay spread, and time varying propagation
b. Survey-based urban mobility
i. Time use in urban areas
ii. Indoor mobility
iii. Micro-mobility models for cars and pedestrians
3. Using the UDelModels
a. Simulating an urban area
i. Making a city map
ii. Map preprocessing
iii. Constructing a propagation matrix
iv. Simulating mobility
v. Making a propagation trace file
vi. QualNet and ns-2 simulation with realistic propagation and mobility traces
b. Other tools
i. Manipulating precomputed traces with the extractor tool
ii. Designing an urban mesh network
iii. Visualizing connectivity with Matlab-based visualization tools
iv. Working with propagation and mobility in Matlab
4. Protocol performance evaluation with the UDelModels
a. Extracting specific types of mobility
b. Automatic construction of application trace files
c. Insight into the impact of different types of mobility on performance of applications such as VoIP, TCP, and CBR.
d. Computational complexity of packet simulations with UDelModels.
5. Conclusions

Stephan Bohacek, Department of Electrical and Computing Engineering, University of Delaware, USA

Stephan Bohacek received his Ph.D. in 1999 from the University of Southern California in Control Theory. From 1999 to 2002 he was a post-doc in the Department of Mathematics at USC. Since 2002, he has been an assistant professor with department of Electrical and Computing Engineering at the University of Delaware. His research focuses on measurement and mobility of wireless networks as well as on routing and MAC protocols for mesh networks. Vinay Sridhara received his Ph.D. from the Department of Electrical and Computer Engineering from the University of Delaware in 2007. His thesis was on measurement and modeling wireless networks He is now a researcher at QualCom where he continues his work on measurement and modeling.

"Performance Modeling and Radio Resource management Techniques for Wireless Cellular Networks"(CANCELED)

New generations wireless cellular networks, including 3G and 4G technologies, are envisaged to support more mobile users and a variety of wireless multimedia services. With an increasing demand for wireless multimedia services, effective Radio Resource Management (RRM) is needed to improve system performance by maximizing the overall system capacity and maintaining the Quality of Service (QoS) of multimedia traffic. In the presence of multiple QoS requirements for different multimedia traffic, the key problem in the design of a multimedia wireless system is to balance the two opposing objectives of the network operator (or service provider) and mobile users. The former wants to achieve high system utilization so that more users can be accommodated by the system and more revenue can thus be obtained while the latter wants to receive better QoS. In such systems, QoS guarantees are required at three different levels: (i) at the connection-level, users expect that the new call blocking probability and handoff call dropping probability be small, (ii) at the class-level, constraints might be placed on how the call rejection (blocking or dropping) probabilities of various classes of calls may be related, and (iii) at the packet-level, users require guarantees on maximum packet delay, delay jitter and packet dropping probability.

The following presents the planned content of the tutorial with a rough time allocation for each topic:
1. Comprehensive overview of the next generation wireless cellular networks
2. Limitations in wireless cellular networks
3. Radio resource management: definition and objectives
4. QoS: definition and hierarchal model
i. Connection-level QoS
ii. Packet-level QoS
iii. Class-level QoS
5. Radio resource management components
i. Handoff algorithms
ii. Call admission control algorithms
iii. Packet scheduling algorithms
iv. Power control algorithms
6. Performance Modeling, Case studies:
i. Case study 1: Multi-class Adaptive Bandwidth Allocation Framework
ii. Case study 2: Optimal and Fair Call Admission Control Policy

Nidal Nasser, Department of Computing and Information Science, University of Guelph, Ontario, Canada

Nidal Nasser (S’00–M’04) obtained his Ph.D. in the School of Computing of Queen’s University, Canada, in October 2004. In December 2004, he joined the Department of Computing and Information Science at University of Guelph, Ontario, Canada, where he is an Assistant Professor. Dr. Nasser has authored several journal publications, refereed conference publications and five book chapters. He is the workshop organizer and Co-Chair of the first IEEE International Workshop on Heterogeneous Wireless Networks: Resource Management and QoS (HWN-RMQ 2006). He has served as a Co-Chair of the technical program for the IEEE International Workshop on Radio Resource Management for Wireless Cellular Networks (RRM-WCN 2005) and the IEEE International Symposium on Heterogeneous Wireless Networks (ISHWN 2005). He is the founder of RRM-WCN. He has been a member of the technical program and organizing committees of several international IEEE conferences and workshops such as IEEE ICC, IEEE GOLBECOM, IEEE LCN, IEEE IPCCC, IEEE CCNC, IEEE AINA, IEEE/IFIP WOCN, IEEE WiMob and IEEE WLN. His current research interests include, multimedia wireless cellular networks, wireless sensor networks and heterogeneous wireless data networks interconnection, with special emphasis on the following topics, radio resource management techniques, performance modeling and analysis and provisioning QoS at connection level, class level, and packet level. Dr. Nasser is a member of the IEEE (Communications Society and Computer Society). He received Fund for Scholarly and Professional Development Award in 2004 from Queen’s University.

"New Directions in the Design of Secure Wireless Systems using Chaotic SIgnals and Interference Mitigation Techniques"(CANCELED)

Abstract: One can say that the subject of security is as old as the subject of communications. In the area of wireless communications, Microwave radio from its introduction in the late 1940 to the present has become one of the primary media for transmitting information from point to point and from a point to a given area. The advent of Satellite communications technology in 1962 and consequent sharing of bands between satellite and radio relay coupled with the explosive growth of Microwave radio routes and mobile communications has led to increased sharing of frequency spectrum and to generation of increased mutual interference. This added interference is playing a dominant role in limiting the capacity, efficiency, reliability, security and cost of modern communication systems. Thus we now have an added problem which has been coded as space security. Security is of major concern of the environment in which various communication systems coexist either in the same or adjacent frequency bands and is also caused by non-ideal mainly nonlinearity mechanisms utilized in the process of communication.
Actually, if someone follows this field of secure communications closely from the interference point of view, he will observe that most of research in this field was done in the 70s when the satellites became a major vehicle for long distance communications. This subject of interference has become again an important area of major concern in recent years due to the great progress and widespread use of mobile and wireless terrestrial system for voice communication. Having studied and solved the problem of sending the information reliably, it was then necessary to study ways to transmit the information securely. For wireless mobile systems this problem was partially solved by using various encryption techniques.
In this tutorial we shall present a review of the areas that require further study and we shall propose ways to move forward using as an example a new methodology based on Chaotic techniques.

This Tutorial will cover the following topics:
1) What is Security/Security Mechanisms
2) Security aspects of OSI Model
3) Mapping of the seven layer ISO Model to a seven level security Model
4) Present Status of Secure Wireless Systems
5) Use of Chaotic Signals to enhance security in conjunction with Interference Mitigation
6) Application to TETRA Systems.
7) Proposals for TETRA based Secure Systems

This tutorial will be valuable to all researchers interested in the general field of security and young scientists who are looking for new research topics in the field of security. Attending this Tutorial, the participants will be able to get an overall outline of how the security field has been developed and where we still need to do some more work and how we can move forward covering the remaining gaps.

Peter Stavroulakis, Technical University of Crete (TUC), Greece

Peter Stavroulakis received his BS and Ph.D. degrees from New York University in 1969 and 1973 respectively and his MS degree from California Institute of Technology in 1970.
He joined Bell Laboratories in 1973 and worked until 1979 when he joined Oakland University in Rochester Michigan as an associate Professor of Engineering. He worked at Oakland University until 1981 when he joined ATT International and subsequently NYNEX International until 1990. From 1990 to present he has been at Technical University of Crete. He joined the Technical University of Crete (TUC) Greece as a full Professor of Electrical Engineering in may 1990. His work at Bell Labs and Oakland University resulted in the publication of an IEEE reprint book on Interference Analysis of Communication Systems and the publication of a number papers in the general area of telecom systems. He is also the Author/Editor of twelve other Books in the general Area of Telecommunication Systems. He has presented many Tutorials in International Conferences on security Applications in Telecommunications the second. While at ATT and NYNEX he worked as a Technical Director whose responsibility was to lead a team dealing with techno-economic studies on various large National and International Telephone Systems and Data Networks. When he joined TUC, he led the team for the development of the Technology Park of Chania and has had various administrative duties besides his teaching and research responsibilities.
Prof. Stavroulakis is the founder of the Telecommunication Systems Institute of Crete, a research center for the training of Ph.D. students in Telecommunications, associated with and in close collaboration with various research centers and Universities in Europe and U.S.A. He now has a very large research team, the work of which is funded by various public and private sources including European Union.
He is a member of the Editorial Board of the International Journal of Communications, International Journal of Satellite Systems and Networking and has been a reviewer for many Technical International Journals. His current research interests are focused on the application of various heuristic methods on Telecommunications, including Neural Networks, Fuzzy Systems and Genetic Algorithms and Chaos also in the development of new schemes to increase security in Mobile and Wireless Systems. Recently he has become Member of the Editorial Board of CHINA COMMUNICATIONS and a Leading Turkish Electronics Journal.

His Distinct Qualifications related to security are the following:
1) Evaluated the Security Network for the Winter Olympic Games in 1986 at Albertville France.
2) Responsible for the evaluation of the C4I for the Athens Olympic/2004
3) Holder of a unique International pending Patent on the security of wireless Communications based of Chaotic Techniques.
4) Author of two Unique books published by ARTECHOUSE and Taylor and Francis and one being published by SPRINGER on this subject out of his career total of 13 Books.
5) Published research papers on all 5 subsystems of C4I out of his career total of 100 and more specifically his work on TETRA and applications of satellite communications and troposcattering techniques are unique and for the first time have appeared in the International Technical literature. As a matter of fact he is writing a book to be published by SPRINGER by the second quarter of 2007 on TETRA titled

6) He has been invited by China to participate in similar activities regarding the Olympic Games of Beijing/2008 and he is a Member of Editorial Board of the China Communications magazine. He co-organized a Conference in Beijing in October 2006 to present how the C4I concept can be used for the Beijing Olympics/2008. He was also invited by the governing board of CHINACOM to present an All Day Turorial in October 2006 in Beijing on the subject of Network and Information Security. He has also served as a Guest Editor for the CHINA COMMUNICATIONS JOURNAL for a special issue on Communications and Information security.
7) He was also a technical director of the biggest Telecom Firm worldwide, ATT, in Europe for the period 1983-1990 and during that time he was involved with the design of the security network of the Winter Olympics/1986 at Albertville France. A very unusual combination of technical/research and senior managerial experience talent and experience!!!.
8) He is member of the IEEE Technical committee on Communication and information security and has received the sponsorship of this committee for proposing the establishment a new IEEE Transaction Journal on Communication and Information security.
9) He is the reviewer for many leading Journals on the subject of Security and evaluator for many European proposals.
10)He has been invited to Edit a Handbook on Communication and Information Security to be published by SPRINGER Publishing Company

Professor Peter Stavroulakis has presented a number of successful tutorials in this subject the last five years in ICC, Globecom,and VTC conferences