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Wireless Sensor Networks and Energy Efficiency: Protocols, Routing and Management

Release Date: January, 2012. Copyright © 2012. 655 pages.
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DOI: 10.4018/978-1-4666-0101-7, ISBN13: 9781466601017, ISBN10: 1466601019, EISBN13: 9781466601024
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MLA

Zaman, Noor, Khaled Ragab, and Azween Bin Abdullah. "Wireless Sensor Networks and Energy Efficiency: Protocols, Routing and Management." IGI Global, 2012. 1-655. Web. 19 Sep. 2014. doi:10.4018/978-1-4666-0101-7

APA

Zaman, N., Ragab, K., & Abdullah, A. (2012). Wireless Sensor Networks and Energy Efficiency: Protocols, Routing and Management (pp. 1-655). Hershey, PA: IGI Global. doi:10.4018/978-1-4666-0101-7

Chicago

Zaman, Noor, Khaled Ragab, and Azween Bin Abdullah. "Wireless Sensor Networks and Energy Efficiency: Protocols, Routing and Management." 1-655 (2012), accessed September 19, 2014. doi:10.4018/978-1-4666-0101-7

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Description

The study of Wireless Sensor Networks (WSN) is a continually growing, as these networks have the advantage of easy deployment for a number of different applications.

Wireless Sensor Networks and Energy Efficiency: Protocols, Routing and Management focuses on wireless sensor networks and their operation, covering topics including routing, energy efficiency and management. Containing 27 chapters authored by a group of internationally experienced professionals and researchers in the fields of computer science, communication, and networking, this book discusses critical issues in wireless sensor network research including MAC, Routing Protocols, TCP, performance and traffic management, time synchronization, and security.

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Table of Contents and List of Contributors

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Table of Contents
Preface
Noor Zaman, Khaled Ragab, Azween Abdullah
Chapter 1
Seema Ansari, Syeda Fariha Hasnain, Adeel Ansari
Wireless Sensor Networks are an exciting technology that can solve a variety of applications. Wireless sensor networks, coupled with the efficient... Sample PDF
Introduction and Overview of Wireless Sensor Networks
$37.50
Chapter 2
Chiranjib Patra, Arindam Mondal, Parama Bhaumik, Matangini Chattopadhyay
Topology management is a key component of network management of wireless sensor networks. The primary goal of topology management is to conserve... Sample PDF
Topology Management in Wireless Sensor Networks
$37.50
Chapter 3
Sana Khan, Sheikh Tahir Bakhsh
Wireless sensor networks have become a popular research area of distributed computing. It is the emerging area of pervasive computing, for... Sample PDF
On Network Management of Wireless Sensor Networks: Challenges, Solutions and Research Trends
$37.50
Chapter 4
Jorge Higuera, Jose Polo
The syntactic and semantic interoperability is a challenge of the Wireless Sensor Networks (WSN) with smart sensors in pervasive computing... Sample PDF
Interoperability in Wireless Sensor Networks Based on IEEE 1451 Standard
$37.50
Chapter 5
Tayseer A. Al-Khdour, Uthman Baroudi
In this chapter, the authors present a literature review for MAC, routing, and cross layer design protocols proposed for WSN. This chapter consists... Sample PDF
Literature Review of MAC, Routing and Cross Layer Design Protocols for WSN
$37.50
Chapter 6
Muhammad Ayaz, Azween Abdullah, Ibrahima Faye
Underwater Wireless Sensor Networks (UWSNs) are finding different applications for offshore exploration and ocean monitoring. In most of these... Sample PDF
A Taxonomy of Routing Techniques in Underwater Wireless Sensor Networks
$37.50
Chapter 7
Khalid El-Darymli, Mohamed H. Ahmed
The rapid increase in WSN-Testbed deployments alongside intra-academic and inter-industrial collaboration are two healthy signs which not only... Sample PDF
Wireless Sensor Network Testbeds: A Survey
$37.50
Chapter 8
Fernando Gielow, Michele Nogueira, Aldri Santos
The use of Wireless Sensor Networks (WSNs) has increased over the past years, supporting applications such as environmental monitoring, security... Sample PDF
Mitigation of Hot Spots on Wireless Sensor Networks: Techniques, Approaches and Future Directions
$37.50
Chapter 9
Noor Zaman, Azween Abdullah, Muneer Ahmed
Wireless sensor networks (WSNs) are taking a major share with almost all types of different applications and especially, it is most suited in very... Sample PDF
Node Localization: Issues, Challenges and Future Perspectives in Wireless Sensor Networks (WSNs)
$37.50
Chapter 10
Vasaki Ponnusamy, Azween Abdullah, Alan G. Downe
This research presents a survey of energy efficient routing protocols in sensor network by categorizing into a main classification as architecture... Sample PDF
Energy Efficient Routing Protocols in Wireless Sensor Networks: A Survey
$37.50
Chapter 11
Tommy Hult, Abbas Mohammed
Wireless Sensor Networks can be used for a multitude of applications, but they all have in common that they need to send their collected data to... Sample PDF
Cooperative Diversity Techniques for Energy Efficient Wireless Sensor Networks
$37.50
Chapter 12
Nauman Israr
Longer life time is the primary goal of interest in Wireless Sensor Networks (WSNs). Communication dominates the power consumption among all the... Sample PDF
Energy Efficient Communication in Wireless Sensor Networks
$37.50
Chapter 13
Hamid Ali, Waseem Shahzad, Farrukh Aslam Khan
In this chapter, the authors propose a multi-objective solution to the problem by using multi-objective particle swarm optimization (MOPSO)... Sample PDF
Using Multi-Objective Particle Swarm Optimization for Energy-Efficient Clustering in Wireless Sensor Networks
$37.50
Chapter 14
Low Tang Jung, Azween Abdullah
This chapter presents the studies and analysis on the approaches, the concepts, and the ideas on data packet size optimization for data packets... Sample PDF
Wireless Sensor Networks: Data Packet Size Optimization
$37.50
Chapter 15
Zhe Yang, Abbas Mohammed
In this chapter, a novel approach is explored to employ high-altitude platforms (HAPs) to remove the relaying burden and/or de-centralize... Sample PDF
Reducing Complexity and Achieving Higher Energy Efficiency in Wireless Sensor Network Communications by Using High Altitude Platforms
$37.50
Chapter 16
Noor Zaman, Azween Abdullah, Khalid Ragab
Wireless Sensor Networks (WSNs) are becoming common in use, with a vast diversity of applications. Due to its resource constraints, it is hard to... Sample PDF
Wireless Sensor Network: Quality of Service QoS Issues and Challenges
$37.50
Chapter 17
J. H. Kong, J. J. Ong, L.-M. Ang, K. P. Seng
This chapter presents low complexity processor designs for energy-efficient security and error correction for implementation on wireless sensor... Sample PDF
Low Complexity Processor Designs for Energy-Efficient Security and Error Correction in Wireless Sensor Networks
$37.50
Chapter 18
Pardeep Kumar, Mesut Gunes
This chapter provides an overall understanding of the design aspects of Medium Access Control (MAC) protocols for Wireless Sensor Networks (WSNs). A... Sample PDF
Medium Access Control Protocols for Wireless Sensor Networks: Design Space, Challenges, and Future Directions
$37.50
Chapter 19
Majdi Mansouri, Khoukhi Lyes, Hichem Snoussi, Cédric Richard
Due to the limited energy supplies of nodes in wireless sensor networks (WSN), optimizing their design under energy constraints, reducing their... Sample PDF
Routing Optimization and Secure Target Tracking in Distributed Wireless Sensor Networks
$37.50
Chapter 20
Adamu Murtala Zungeru, Li-Minn Ang, SRS. Prabaharan, Kah Phooi Seng
High efficient routing is an important issue in the design of limited energy resource wireless sensor networks (WSNs). This chapter presents an... Sample PDF
Improved Energy-Efficient Ant-Based Routing Algorithm in Wireless Sensor Networks
$37.50
Chapter 21
Asfandyar Khan, Azween Abdullah, Nurul Hasan
Wireless sensor networks (WSANs) are increasingly being used and deployed to monitor the surrounding physical environments and detect events of... Sample PDF
Event Based Data Gathering in Wireless Sensor Networks
$37.50
Chapter 22
S. Mehta, B. H. Kim, K.S. Kwak
Game Theory provides a mathematical tool for the analysis of interactions between the agents with conflicting interests, hence it is a suitable tool... Sample PDF
A Game Theoretical Approach to Design: A MAC Protocol for Wireless Sensor Networks
$37.50
Chapter 23
Alok Kumar, Shirshu Varma
This chapter surveys routing algorithms in Euclidean, virtual, and hyperbolic space for wireless sensor networks that use geometric structures for... Sample PDF
Geometric Structures for Routing Decision in Wireless Sensor Networks
$37.50
Chapter 24
M. Yasir Malik
With the expansion of wireless sensor networks, the need for securing the data flow through these networks is increasing. These sensor networks... Sample PDF
An Outline of Security in Wireless Sensor Networks: Threats, Countermeasures and Implementations
$37.50
Chapter 25
H Ranganathan
The future generation of vehicles on the road is going to be driven by wire. To aid in this ‘electronic’ revolution in the vehicle, the role of... Sample PDF
Wireless Sensor Network to Support Intelligent Transport Systems
$37.50
Chapter 26
Nova Ahmed
The middleware is a very important component in the wireless sensor network system. It has major challenges that are generic for any distributed... Sample PDF
Middleware Systems for Sensor Network: A Study on Different Middleware Systems
$37.50
Chapter 27
Thu Nga Le, Xue Jun Li, Peter Han Joo Chong
This chapter presents a novel grid-based localization technique dedicated for forest fire surveillance systems. The proposed technique estimates the... Sample PDF
A Grid-Based Localization Technique for Forest Fire Surveillance in Wireless Sensor Networks: Design, Analysis, and Experiment
$37.50
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Reviews and Testimonials

This book is intended for anyone who wants to cover a comprehensive range of topics in the field of wireless sensor networks paradigms and developments. [...] It provides guidance for technology solution developers from academia, research institutions, and industry, providing them with a broader perspective of wireless sensor networks.

– Noor Zaman, King Faisal University, Saudi Arabia; Khaled Ragab, King Faisal University, Saudi Arabia; and Azween Bin Abdullah, Universiti Teknologi Petronas, Malaysia
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Topics Covered

  • Cross Layer Design Protocols for Wireless Sensor Networks
  • Energy Efficient Routing Protocols
  • Intelligent Transport Systems
  • Network Management of Wireless Sensor Networks
  • Node Localization
  • Particle Swarm Optimization
  • Routing Optimization
  • Routing Techniques
  • Security in wireless sensor networks
  • Topology Management
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Preface

Introduction

Wireless Sensor Networks (WSN) are an emerging field, with special characteristics, including the capability of easy deployment with a number of different applications. Sensor networks normally consist of small nodes with limited capability for computation and communication. The major share of research in the last decade pertains to WSN. The main reason for the popularity of wireless sensor networks is because of ease in deployment and low cost. Its main function is to collect the data, resulting of any physical event occurrence in the network area and then send it to the sink. This book focuses on wireless sensor networks in general, and operations including routing, energy efficiency, and the management aspects.

This book is intended for anyone who wants to cover a comprehensive range of topics in the field of wireless sensor networks paradigms and developments. It is both for an academic audience (teachers, researchers, and students, mainly of post-graduate studies) and professional audience. Readers of this book are pre assumed familiar with the concepts and paradigms of wireless sensor network concepts and its related concepts. It provides guidance for technology solution developers from academia, research institutions, and industry, providing them with a broader perspective of wireless sensor networks.

This book contains 27 excellent chapters authored by a group of internationally experienced professionals and researchers in the field of computer science, communication, and networking. Contributors also include younger authors, creating a value-added constellation of dynamic authors. Concerning the environments from which the contributions are presented, the chapters came from academia, research institutions and industry.

Organization of the Book
This book is designed to cover a wide range of topics in the field of wireless sensor networks. It includes three sections that provide a comprehensive reference for wireless sensor network by covering all important topics, including an introduction, MAC, Routing Protocols, TCP, performance and traffic management, time synchronization energy efficiency, applications, and security. Each chapter is designed to be as a stand-alone as possible; the reader can focus on the interested topics only. The chapters are described briefly as follows.

Section 1: Introduction


Chapter 1 provides a brief technical introduction to WSN, with background and history and an understanding of sensor networks, design constraints, security issues, and a few applications sensor networks are enabling. A brief discussion of the network topologies that apply to wireless sensor networks are also discussed in this chapter.

Chapter 2
throws a light on the recent developments and future directions of research in WSN topology management that maintain wireless network connectivity in an energy-efficient manner.

Chapter 3 compiles some related information on the basis of studied literature, regarding WSN management, including WSN background, issues and challenges, proposed solutions, and research trends.

Chapter 4 includes a detailed description of interoperability in heterogeneous WSN using the IEEE 1451 standard. It focuses on personal area networks (PAN) with smart sensors and actuators. In this chapter, the authors explore different options to apply the IEEE 1451 standard using SOAP or REST Web service style in order to test a common syntactical interoperability that could be predominant in future WSNs.

Chapter 5
presents literature review for MAC, routing, and cross layer design protocols that proposed for WSN. This chapter discusses and compares the most well-known MAC protocols for WSN according to layers integrated, intended applications, and cross-layer objectives. The authors classified the routing protocols for WSN into data centric routing protocols, hierarchical routing protocols, location based protocols, QoS aware routing protocols, and application. Finally, this chapter discusses some cross layer design protocols.

Chapter 6
presents a review and comparison of different algorithms proposed recently for underwater sensor networks (UWSNs). The UWSNs are finding different applications for offshore exploration and ocean monitoring.

Chapter 7 presents a survey on the Wireless Sensor Network Testbed (WSN-Testbed). The WSN-Testbed is a platform for experimentation of development projects. It enables realistic and reliable experimentation in capturing the subtleties of the underlying hardware, software, and dynamics of the WSN. The authors adopt and describe a classification methodology for WSN-Testbeds. Consequently, they present a generic architecture for the different classes of WSN-Testbeds. Carefully, this chapter discusses and analyzes a variety of 30  WSN-Testbeds. Finally, the authors believe that this chapter is a contribution towards realizing the important role that a WSN-Testbed plays in hastening the industrial adoption for the promising WSN technology.

Chapter 8 provides an overview of techniques to mitigate Hot Spot impacts, such as the uneven distribution of sensors, routes that balance energy consumption, sink mobility, and the use of unequal clustering. Further, it depicts an approach for achieving mitigation of sink centered Hot Spots.

Chapter 9 provides an overview of different location aware algorithms to focus to save the energy resource of sensor network. The chapter describes the current available approaches, issue and challenges with current approaches and future directions for node localization, one by one. Node localization is highly important for large sensor networks where users desire to know about the exact location of the nodes in order to know the data location.

Section 2: Energy Efficiency of WSN


Chapter 10 presents a survey of energy efficient routing protocols in sensor networks by categorizing architecture based routing. Furthermore, it classifies the architecture based routing into two main areas: flat or location based routing protocols, and hierarchical based routing protocols. The authors present a survey of relevant literature in order to highlight the advantages of hierarchical based routing, particularly with respect to the deployment of mobility routing. Finally, this chapter is helpful in providing new perspectives and paradigms for the design and analysis of energy efficient routing protocols.

Chapter 11
investigates the use of various cooperative diversity techniques in wireless sensor networks to increase the transmission range, minimize power consumption, and maximize network lifetime.

Chapter 12
analyzes the effect of density on inter cluster and intra cluster communication and evaluates a hybrid cross layer scheduling schemes to enhance the lifetime of the WSNs. The authors suggests a hybrid cross layer scheduling scheme at the application layer that puts the redundant nodes to sleep if they are used for some other energy intensive tasks. Performance studies in the chapter indicate that the proposed communication strategy is more energy efficient than the conventional communication strategies, which employ the sleep/wake up pattern at application layer.

Chapter 13
proposes a multi-objective particle swarm optimization (MOPSO) algorithm to optimize the number of clusters in a sensor network in order to provide an energy-efficient solution. The proposed algorithm considers the ideal degree of nodes, and battery power consumption of the sensor nodes. The main advantage of the proposed method is that it provides a set of solutions at a time. This chapter performed extensive simulations to compare the proposed approach with two other well-known clustering techniques: WCA and CLPSO-based clustering.

Chapter 14
presents the studies and analysis on the approaches, the concepts, and the ideas on data packet size optimization for data packets transmission in underwater wireless sensor network (UWSN) and terrestrial wireless sensor network (TWSN) communications. This chapter starts off with the studies and analysis on prior arts found in UWSN and then moves on to the similar works found elsewhere in the TWSN communications counterparts. In addition, it summarizes comparison on some important issues related to data packet size optimization approaches used in UWSN and TWSN communications. The findings in this chapter may be helpful to readers who are interested in the R&D of data packet size optimization techniques with the intention to formulate new data packet size optimization framework or algorithms.

Chapter 15 proposes a novel approach to employ high-altitude platforms (HAPs) to remove the relaying burden and/or de-centralize coordination from wireless sensor networks (WSNs). The approach can reduce the complexity and achieve energy efficiency in communications of WSNs, whereby applications require a large-scale deployment of low-power and low-cost sustainable sensors. Moreover, the authors review and discuss the main constraints and problems of energy consumptions and coordination in WSNs.

Chapter 16
describes the importance of quality of service QoS and focuses on operational and architectural challenges of handling QoS, as well as requirements of QoS in WSNs. It discusses a selected survey of QoS aware routing techniques by comparing them in WSNs. Finally, the chapter highlights a few open issues and future directions of research for providing QoS in WSNs.

Chapter 17 presents low complexity processor designs for energy-efficient security and error correction for implementation on wireless sensor networks (WSN). This chapter describes Minimal Instruction Set Computer (MISC) processor designs with a compact architecture and simple hardware components. The MISC is able to make use of a small area of the FPGA and provides a processor platform for security and error correction operations. In this chapter, two example applications, which are the Advance Encryption Standard (AES) and Reed Solomon (RS) algorithms, were implemented onto MISC. The MISC hardware architecture for AES and RS were designed and verified using the Handel-C hardware description language and implemented on a Xilinx Spartan-3 FPGA.

Chapter 18
provides an overall understanding of the design aspects of Medium Access Control (MAC) protocols for Wireless Sensor Networks (WSNs). The authors first discuss the basics of MAC design for WSNs and present a set of important MAC attributes. Subsequently, they discuss the main categories of MAC protocols proposed for WSNs and highlight their strong and weak points. After briefly outlining different MAC protocols falling in each category, the authors provide a substantial comparison of these protocols for several parameters. Finally, this chapter discusses future research directions on open issues in this field that have mostly been overlooked.

Chapter 19 proposes an algorithm for the detection of malicious sensor nodes based on Kullback-Leibler distance between the current target position distribution and the predicted sensor observation, while the best communication path is selected, as well as the highest signal-to-noise ratio (SNR) at the cluster head (CH). The efficiency of the proposed method is validated by extensive simulations in target tracking for wireless sensor networks (WSN).

Chapter 20 presents an improved energy-efficient Ant-Based routing algorithm (IEEABR) in wireless sensor networks. The proposed IEEABR approach has advantages of reduced energy usage and achieves a dynamic and adaptive routing, which can effectively balance the WSN node power consumption and increase the network lifetime. This chapter covers applications and routing in WSNs, different methods for routing using ant colony optimization (ACO), a summary of routing algorithms based on ant systems, and the Improved Energy-Efficient Ant-Based Routing Algorithm approach.

Chapter 21
describes an “Event Based Detection” model to simulate the results in terms of energy savings during field activities like a fire detection system in a remote area or habitat monitoring, and it is also used in security concerned issues. The model is designed to detect events (when occurring) of significant changes and save the data for further processing and transmission. In this way, the amount of transmitted data is reduced, and the network lifetime is increased. The main goal of this model is to meet the needs of critical condition monitoring applications and increase the network lifetime by saving more energy.

Section 3: Application, Theoretical and General


Chapter 22 uses the concepts of game theory to design an energy efficient MAC protocol for wireless sensor networks (WSNs). This enables the authors to introduce persistent/non-persistent sift protocol for energy efficient MAC protocol and to counteract the selfish behavior of nodes in WSNs. Finally, the results show that game theoretical approach with the persistent/non-persistent sift algorithm can improve the overall performance as well as achieve all the goals simultaneously for MAC protocol in WSNs.
Chapter 23 surveys routing algorithms in Euclidean, virtual, and hyperbolic space for wireless sensor networks (WSNs) that use geometric structures for their route decisions. This chapter starts with the importance and impulse of the geographical routing in WSNs that exploit location information of the nodes to determine the alternatives of the next hop node on the desired routing path. The scalability of geographical routing encourages more effort on the design of virtual coordinates system, with which geographical routing algorithms are built up and applied to route data packets in the network.

Chapter 24
provides the basics of wireless sensor network (WSNs) security to help researchers and engineers in better understanding of this applications field. The authors provide the basics of information security, with special emphasis on WSNs. Moreover, this chapter gives an overview of the information security requirements in these networks. Threats to the security of data in WSNs and some of their counter measures are also presented.

Chapter 25
discusses the development of wireless sensor networks (WSNs) for intelligent transport systems. Due to the electronic revolution in the vehicle, the role of wireless sensors and their interaction amongst themselves and with the environment is gaining importance. For successful interaction of information from environment/vehicle, there is a need for wireless networking of the information from different sources. Mainly, this chapter sheds light on the development of WSNs for intelligent transport systems, newer network architectures, protocols, and algorithms that are being developed.

Chapter 26
The middleware is a very important component in the wireless sensor networks (WSNs) system. It has major challenges that are generic for any distributed systems as well as specific ones that are inherent to the physical nature of WSNs systems due to its resource constraint nature. The authors classify WSNs middleware systems as event based middleware, system abstraction based middleware, application and network aware system, and query based systems to gain a better understanding of such systems.

Chapter 27
presents a novel grid-based localization technique dedicated for forest fire surveillance systems. The proposed technique estimates the location of sensor node based on the past and current set of hop-count values, which are to be collected through the anchor nodes’ broadcast. The proposed algorithm incorporates two salient features, grid-based output and event-triggering mechanism, in order to improve the accuracy while reducing the power consumption. The estimated computational complexity of the proposed algorithm is O(Na) where Na is the number of anchor nodes. Through computer simulation, results showed that the proposed algorithm shows that the probability to localize a sensor node within a small region is more than 60%.

The Editors,
Noor Zaman
Azween Abdullah
Khaled Ragab

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Author(s)/Editor(s) Biography

Noor Zaman acquired his Degree in Engineering in 1998, and Master’s in Computer Science at the University of Agriculture in Faisalabad Pakistan in 2000. His academic achievements further extended with a PhD in Information Technology at University Technology PETRONAS (UTP), Malaysia (expected in 2012). He is currently working as a Faculty member in the College of Computer Science and Information Technology, King Faisal University, in Saudi Arabia. He takes care of versatile operations including teaching, research activities, Information Technology management and leading ERP projects. He headed the Department of Information Technology (IT), and administered the prometric center in the Institute of Business and Technology (BIZTEK), in Karachi Pakistan. He has worked as a consultant for Network and Server Management remotely in Apex Canada USA base Software house and call center. Noor Zaman has authored more than 35 research papers, and edited two books, has many publications to his credit. He is an associate Editor and reviewers for reputed international research journals around the world. He has completed several research grants and currently involved with funded projects in different countries. His areas of interest include Wireless Sensor Network (WSN), Network, Network and Communication, Telecommunication, Mobile Computing, Software Engineering, Artificial Intelligence, Unix, and Linux.
K. Ragab is an assistant professor at Department of Computer Science, College of Computer and Information Technology, King Faisal University, Saudi Arabia. Moreover, he is on leave assistant professor of Computer Science at Department of Mathematic, Computer Science division, Ain Shams University. He joined Department of Computer Science, Tokyo University in 2005 as postdoctoral position. He was born in 1968 and received his B.Sc., M.Sc. degrees in Computer Science from Ain Shams University, Cairo, Egypt in 1990, 1999, respectively and Ph.D. degree in Computer Science from Tokyo Institute of Technology in 2004. He has worked in Ain Shams University, Cairo Egypt in 1990-1999 as assistant lecturer. He has worked as research scientist in Computer Science Dept., Technical University of Chemnitz, Germany in 1999-2001. His research interests include autonomous decentralized systems, Peer-to-Peer Systems, video streaming systems, Overlay Networks, Web-services and application-level multicast.
Azween Abdullah obtained his Bachelor’s degree in Computer Science in 1985, Master in Software Engineering in 1999, and his PhD in Computer Science in 2003. His work experience includes twenty years in institutions of higher learning and as a director of research and academic affairs at two institutions of higher learning, Dean of his faculty, and fifteen years in commercial companies as Software Developer and Engineer, Systems Analyst, and IT/MIS and educational consultancy and training. He is currently an Associate Professor at Universiti Teknologi PETRONAS, Malaysia. He spent more than a decade with leading technology firms and universities as a process analyst, senior systems analyst, and project manager. He has participated in and managed several software development projects, including management Information Systems, software process improvement initiatives design and implementation, and several business application projects. He has many years of experience in the application of IT in business, engineering, and research and has personally designed and developed a variety of computer software systems, including business accounting systems, software for investment analysis, website traffic analysis, determination of hydrodynamic interaction of ships, and computation of environmental loads on offshore structures. His area of research specialization includes computational biology, system survivability and security, autonomic computing, self-healing and regenerating systems, formal specifications, and network modeling. His contributions include publishing several academic books and in the development of programs to enhance minority involvement in bridging the ICT digital gap.