Resilient Network Design

We know from traditional network management that the quality of a complex system built on different sub-systems is dictated by the quality of the weakest part. Nowadays our lives, businesses and many promising applications throughout the world depend on the availability of different parts of an interconnecting scheme, for example the global Internet and associated services. With so many long-term heavy investment programs and hopes already built, communities are now heavily reliant on the sustainability of a hugely complex networking system. Now that real use of these ever growing networks is expanding, and promising use and applications are on the horizon, we need much tighter reliability on each component from personal, local, national, international and global interconnecting networks. That is, any unprotected failure in any part of the interconnecting route of such complex networks should be reliably handled to guarantee its safe and complete delivery. If a failure occurs through lack of compatibility with the service or a risky design element in a sub-network and is not dealt with properly and professionally, then the risk may be passed over to the overlay delivery of service. In turn this could cause serious and more complex issues such as: risk to human lives by way of failures in medical applications, excessive loss of resources, and heavy impacts on small and developing businesses. The accumulation of all this could ultimately result in total loss of global trust and a rapid decline in promoting new businesses, affecting the future growth of viable application services and have a further impact on our fragile economies. In order to ensure the maintenance of healthy, dependable network-based services we need a set of trustworthy infrastructures built upon the simple rule of perceived quality of a complex system challenged by its lowest-quality component. We must ensure its integration into our classic network design process and onto all levels of network management so that all systems and networks operate precisely and reliably in the presence of any unpredictable errors, disturbances and failures under a common umbrella of ‘resilient network design’. Resilient Network Design (RND) is a timely and critically important challenging issue of network design and management. RND ensures that a network operates at an acceptable level of service, in the presence of all internal, external, deterministic and probabilistic faults, failures, security issues and above all human error. This can be achieved through a more intelligent and sophisticated use of minimum risk components which in turn may require further investment in resources. This special issue aims to point out the importance of dependability in network management and exemplify some of the critical issues of network resilience, provide statistical data of persisting problems, propose superior solutions to the old persisting bottlenecks and propose further solutions for new and upcoming problems. Five papers are presented which should provide the required insight into how network resilience can be developed to deliver reliable services to end-users and applications; in optical networks as backbone; in wireless sensor networks as a challenging area in complex networking; in mobile ad-hoc networks; and in secure protocols and cryptography approaches. We would like to thank the authors for their contributions and also thank those whose work could not be accepted due to time restrictions. All submitted papers to this special issue pose novel contributions and are appreciated for supporting us in emphasizing this exciting and fascinating area of research in systems, protocols and networking. Furthermore, we would like to thank the reviewers for providing valued comments and feedback that has been essential and fundamental in ensuring the quality of papers selected for this issue. received the B.Sc. (Hons) degree in electronic engineering from the Shahid Beheshti University, Tehran, Iran, in 2001, the M.Sc. degree in control engineering from the Amirkabir University, Tehran, Iran, in 2003 and the Ph.D. degree in electronic engineering from the Iran University of Science and Technology, Tehran, Iran, in 2007. After his lecturing position at Shahid Beheshti University, in 2008 he joined the Shahid Chamran University. He worked as a postdoctoral research fellow at Esslingen University and IAER, Germany, in 2010. His research interests include digital circuits and systems design, optical and wireless networking. Dr Kavian has over 80 technical publications including journal and conference papers in these fields; he is the author or coauthor of 7 book chapters and coeditor of 3 books; ‘Resilient Optical Networks Design: Advances in Fault-Tolerant Methodologies’, ‘Using Cross-Layer Techniques for Communication Systems: Techniques and Applications’ and ‘Intelligent Systems for Optical Networks Design: Advances Techniques’. He is a senior industrial engineer and professional trainer with more than 10 years industry collaborations and experiences. received his B.Sc. in 1969 and post-graduate qualifications in 1970 from the University of Tehran. Following his Doctorate at the University of Kent in 1980, he was selected for a training mission as the head of division for the development of a new Telecom Research Centre, under a new cooperation project between the Iranian PTT and Japanese Industries including the NTT and KTT. Since then he has gained a blend of industrial research and development positions in industry. He has held academic positions at the University of Tehran, University of Zambia, Coventry University, Magdeburg University and University of Warwick. He received his professorship of ‘Networks, Systems & Protocols’ from the German Ministry of Education in 2001. Since 2004, he headed a Special Academic Quality Research Operation under Directorship of Advanced Communication Systems, which involves ITU, CTO, WHO, IEEE/IEE/IET. He has been cooperating in industrial technical reports and publications including three books; ‘Distributed Sensor Systems: Practice and Applications’, ‘Using Cross-Layer Techniques for Communication Systems: Techniques and Applications’ and upcoming DYNET, ‘Dynamic Ad-Hoc Networks’. earned his Ph.D. in Computer Engineering in 2000 from Ohio State University in Columbus, Ohio, an M.S. in Computer Science from University of Louisville in 1994, and a B.E. from Zhejiang University in 1992. In September 2000, he joined the Department of Computer science and Engineering at Wright State University where he has been a full professor since 2010. He spent the summer of 1998 at Panasonic Information and Networking Technology Laboratory, Princeton, NJ. He is a recipient of the US Department of Energy Career Award and US National Research Council Senior Research Associateship. His research interests include multimedia communication, real-time system and communication, wireless and mobile networking, wireless sensor networks, pervasive/ubiquitous computing, security and information assurance, open spectrum access & cognitive radio networks, dense wavelength division multiplexing (DWDM) optical networks, Grid computing. His research has been supported by the National Science Foundation, the US Department of Energy, DoD Air Force Research Lab, DAGSI, ITEC-Ohio, Ohio Board of Reagents, ODOD, and the Ohio Supercomputer Center. received his BSc and MSc from Alexandria University, Egypt, in 1969 and 1972 respectively, and his PhD from Laval University, Quebec, Canada in 1975. He joined the School of Information Technology and Engineering (now School of Electrical Engineering and Computer Science) of the University of Ottawa in 2002 as a Tier 1 Canada Research Chair Professor, where he became a Distinguished University Professor in 2006. He has been with the ECE Dept. at Queen's University (1979-2002), where he was prior to his departure a Full Professor and the Department Associate Head. He has six years of industrial experience mainly at Bell Northern Research of Ottawa (then known as Nortel Networks). He served as Editor-in-Chief of the IEEE Communications Magazine (1995-97) and IEEE ComSoc Director of Magazines (1998-99), Chair of the Awards Committee (2002-03), Director of Education (2006-07), and Member of the Board of Governors (1997-99 and 2006-07). He has been a Distinguished Speaker of the IEEE Communications Society (2000-2007). He is the author or coauthor of 8 books, 58 book chapters and more than 1200 technical papers, 12 patents and 140 industrial reports. He is the joint holder of 14 Best Paper and/or Outstanding Paper Awards. He has received numerous prestigious awards, such as the 2007 Royal Society of Canada Thomas W. Eadie Medal, the 2007-2008 University of Ottawa Award for Excellence in Research, the 2008 ORION Leadership Award of Merit, the 2006 IEEE Canada McNaughton Gold Medal, the 2006 EIC Julian Smith Medal, the 2004 IEEE ComSoc Edwin Howard Armstrong Achievement Award, the 2004 George S. Glinski Award for Excellence in Research of the U of O Faculty of Engineering, the 1989 Engineering Medal for Research and Development of the Association of Professional Engineers of Ontario (PEO), and the Ontario Distinguished Researcher Award of the Ontario Innovation Trust. Dr. Mouftah is a Fellow of the IEEE (1990), the Canadian Academy of Engineering (2003), the Engineering Institute of Canada (2005) and the Royal Society of Canada RSC Academy of Science (2008).

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