Abstract: Ultra Wideband or UWB is a technique based on transmitting very-short-duration pulses, often of duration of only nanoseconds or less. This allows it to deliver data rates in excess of 100 Mbit/s, while using a small amount of power and operating in the same bands as existing communication systems without producing significant interference.

UWB technology offers great opportunities for short-range wireless multimedia communications and networking. Unlike conventional wireless systems, which use narrowband modulated carrier waves to transmit information, Ultra-Wideband transmits over a wide band of radio spectrum, using a series of very narrow and low-power pulses. The combination of broader spectrum, lower power and pulsed data means that Ultra-Wideband causes significantly less interference than conventional narrowband radio solutions while safely coexisting with other wireless technologies in the market.

The distinct advantages of UWB communication that make it a strong candidate for future communication systems (both military and civilian) are: exceptional multi-path immunity, potential for substantially less power consumption than conventional systems, inherently secure, highly resistant to interference and exceptionally high spatial capacity.

The talk will start with the basics of UWB and go on to discuss the current state of the art in UWB communications. The talk will also cover transceiver design issues for UWB systems. The presentation will end with some future directions related to the research, development and killer applications for UWB systems.

PLENARY LECTURE 2

Solving Network Optimisation Problems

Professor Milos Seda

Brno University of Technology

Faculty of Mechanical Engineering

Institute of Automation and Computer Science

Czech Republic

Email: seda@fme.vutbr.cz

Abstract: Finding the shortest path between two positions or between all pairs of points is a fundamental problem in transportation, routing, robot motion planning, and communications applications.

The second application area, investigated here, is focused on problems of finding minimal networks connecting a set of given points in the plane using either only straight connections between pairs of points (minimum spanning tree) or allowing the addition of auxiliary points to the set to obtain shorter spanning networks (minimum Steiner tree).

The purpose of this presentation is also to introduce special geometric structures of computational geometry – Voronoi diagram and Delaunay triangulation, and show typical examples of their efficient applications, e.g. in finding the Euclidean minimum spanning tree, Euclidean minimum Steiner tree and collision-free motions in robotics.

Finally, we deal with the All-Pairs Shortest Paths Problem and Steiner tree problem on a graph in which a fuzzy number, instead of a real number, is assigned to each edge. We propose a modification of the shortest paths approximation based on the fuzzy shortest paths (FSP) evaluations. Since a fuzzy min operation using the extension principle leads to nondominated solutions, we propose another approach to solving the FSP using Cheng's centroid point fuzzy ranking method.

PLENARY LECTURE 3

The International Scientific Dialogue in Computer Science

Professor Nikos E. Mastorakis

Military Inst. of University Education

Hellenic Naval Academy

Terma Hatzikyriakou 18539,

Piraeus, GREECE

http://www.wseas.org/mastorakis

SESSION: Software Management and Development

Chair: Jarallah Alghamdi, Arun Sharma

An Initial Study in using Audio-Visual Stimuli in E-Commerce	D. Rigas, A. Stergiou	540-319
Measuring Software Coupling	Jarallah Alghamdi	540-383
Effective Software Management– Where Do We Falter?	Syed Jawad Hussain, Khalid Rashid, H. Farooq Ahmad, Syed Fawad Hussain	540-275
Security Software Engineering: Do it the right way	Ahmad Al-Azzazi, Asim El Sheikh	540-264
Empirical Evaluation and Critical Review of Complexity Metrics for Software Components	Arun Sharma, Rajesh Kumar, P. S. Grover	540-330
Personnel motivating projects: reasons, implementation and risks	Deniss Kumlander	540-211
Collaborative Software Engineering of the Life-Critical Systems	Deniss Kumlander	540-196
Performance Analysis and Portability issues of 64-bit Message Passing Interface for Tera Scale System	D. Prabu, V. Vanamala, Anshu Garg, R. Sridharan, B.B. Prahlada Rao, N. Mohanram	540-141
Scenario generation with differential scenario	Atsushi Ohnishi	540-238

Saturday, February 17, 2007

SESSION: Web-based Applications

Chair: Noor Habibah Arshad, Zhiguang Wang

Risk Factors in Software Development Projects	Noor Habibah Arshad, Azlinah Mohamed, Zaiha Mat Nor	540-239
An Exploration of WebGIS Based Building Information System	Zhiguang Wang, Junjie Xu, Ming Chen, Yuchun Qin	540-322
Grid's confidential outsourcing of string matching	Rachel Akimana, Olivier Markowitch, Yves Roggeman	540-353
Web-Based Applications Development in Small Firms	Haroon Salem Al-Tarawneh, Asim El-Sheikh, Sattam Rakan Lahawiah	540-212
An architecture for web-based DSS	Huabin Chen, Xiaodong Zhang, Tianhe Chi	540-278
A Conceptual Model for Business-Oriented Management of Web Services	Jyhjong Lin	540-290
On the refinement of web application systems from upper-stream models to program models	Nobuoki Mano, Takakazu Kaneko	540-336

SESSION: Parallel and Distributed Systems

Chair: Petrica Pop, Hamid Abachi

Meeting Scheduling with Multi Agent Systems: Design and Implementation	Ismail Ozgur Demirel, Nadia Erdogan	540-279
A parallel algorithm for interpolation in Pancake graph	Ioana Zelina, Petrica Pop, Corina Pop Sitar, Ioana Tascu	540-317
Volunteer Computing With Video Game Consoles	David Toth	540-118
Characterizing resource availability for volunteer computing and its impact on task distribution methods	David Toth, David Finkel	540-126
Hardware Cost Analysis of Master-Slave Star Ring Super-Hypercube and Master-Slave Super-Super-Hypercube 4-Cube Architecture	M. Amiripour, H. Abachi, K Dabke	540-237
Effective Data Conversion Algorithm for Real-Time Visual Based Human Computer Interface	Anaelis Sesin, Malek Adjouadi, Melvin Ayala, Armando Barreto, Naphtali Rishe	540-358

Sunday, February 18, 2007

SESSION: Modelling and Computational Techniques

Chair: Bouabid El Ouahidi, Saulius Minkevicius

Interaction Signatures and Action Templates in the ODP Computational Viewpoint	Oussama Reda, Bouabid El Ouahidi, Daniel Bourget	540-385
Analysis and Investigation of Reliability Model in Computer Networks	Saulius Minkevicius	540-140
Extended General Motion Model: an Assembled Object Oriented Model for Moving Objects	Huanzhuo Ye, Tenghong Liu, Jianping Pan, Jing Chen	540-148
Information Communication Educational Technologies in Lifelong Learning of Underprivileged Groups	Andreja Istenic Starcic, Andrej Brodnik, Matjaz Kljun	540-400
Proposition of a model of Data backup in XML format	Souleymane Oumtanaga, Kone Tiemoman, Prosper Kimou, Dowa N’sreke Florent	540-305
Towards Software Requirements Extraction Using Natural Language Approach	Yara Alkhader, Amjad Hudaib, Bassam Hammo	540-163
Developing Agricultural B2B Processes using Web Services	S. Karetsos, C. Costopoulou, O. Pyrovolakis, L. Georgiou	540-087
Capacity Evaluation of an Indoor Wireless Channel at 60 GHz Utilizing Uniform Rectangular Arrays	Nektarios Moraitis, Dimitrios Dres, Odysseas Pyrovolakis	540-088 p.p 169-174