Rasheek Rifaat (Jacobs Canada, Calgary, AB, Canada)
The majority of distribution system faults start as line-ground (L-G) faults. Accordingly, attention has been given to grounding or isolation of neutral points of sources and transformers and L-G fault protection. Understanding L-G faults is indispensable for achieving the correct balance between different protection aspects such as coordination, selectivity, speed and economics. Continuity of power supply is critical for many industrial systems, meanwhile, quick fault identification and quick protection tripping reduces the risk of fault advancement into multiple phase faults with damaging currents, arc flash energies and associated hazards. Several computer programs provide great tools for short circuit calculations and relay coordination. However, it is important for electrical engineers and system designers to augment the use of computer programs with comprehensive understanding of their systems. One of the brilliant calculation methods, introduced in 1917 and still being used, is the symmetrical components method. In addition to the introduction of symmetrical components, this tutorial includes discussion on system neutral grounding, medium and low voltage cable and system capacitances, high and low resistance grounding and protection for L-G faults. Relevant IEEE Standards for Recommended Practices in Industrial and Commercial Power Systems (Series 3000) will be identified and discussed.
Rasheek Rifaat received the B.Sc. degree from Cairo University, Giza, Egypt, in 1972 and the M.Eng. degree in electrical engineering from McGill University, Montreal, QC, Canada, in 1979. In 1975, he joined Union Carbide Canada Ltd., Quebec, QC. In 1981, he joined Monenco Consultants Ltd., Calgary, AB, Canada, and Saskmont Engineering Ltd., Regina, SK, Canada, where he was involved in thermal power-generating plant projects with special interest in generator protection systems and power-plant systems. Since 1991, he has been with Delta Hudson Engineering Ltd. (now Jacobs Engineering), Calgary, AB, Canada, where his main duties are large power cogeneration projects and industrial power systems. He has published papers on cogeneration plant protection, operation, and economics. Mr. Rifaat is a Registered Professional Engineer in three Canadian Provinces and a Fellow of the IEEE.
Md. Jahangir Hossain (The University of British Columbia – Okanagan Campus, Kelowna, BC, Canada)
Imtiaz Ahmed (McGill University, Montreal, QC, Canada)
Energy harvesting (EH) has attracted considerable attention from academia and industry as an environmentally friendly supply of energy for the wireless communication nodes. In practice, the transmitter and receiver nodes in communication systems expend their energy for processing and transmitting data. Connecting these transceiver nodes to the power grid is cumbersome for some applications and in other cases, may not even be possible. For instance, it is highly inconvenient to run the power cables in order to energize small sensor nodes in wireless sensor networks. Pre-charged batteries can be a viable solution to this problem. However, in practice, the limited storage capacity of the batteries and high transmit powers may result in the quick drainage of the batteries. As a result, the batteries need to be periodically replaced or recharged, which can be impractical as well. For example, wireless sensor nodes can be placed in a toxic or hazardous environment that prohibits human intervention. In these situations, deploying EH nodes is an alternative solution. EH nodes harvest energy from the renewable sources of their surrounding environment, convert it to electrical energy, and store the electrical energy in batteries in order to carry out their functions. In general, the energy can be harvested from unused ambient renewable energy sources using solar, thermoelectric, and motion effects, or through other physical phenomena. EH nodes can be regarded as a promising option for deployment as they ensure a long system lifetime without the need for periodic battery replacements. However, using EH nodes for conventional communication systems is not straightforward and requires a careful attention to design communication devices and to develop communication protocols and resource control algorithms. Precisely, the EH systems should be able to manage the harvested energies optimally and efﬁciently in order to achieve the optimal performance while reducing the randomness of the energy availability. Developing new systems or modifying the existing protocols to accommodate the EH capability while controlling communication resources brings many new challenges not only in physical layer but also in higher layers. This tutorial will explore into the design and optimization problems for EH systems and delve into their performance analysis. Starting with the visions and requirements for EH systems, the challenges of radio resource control and allocation (e.g., power control, subcarrier allocation, user scheduling, etc.) will be outlined. Open research issues and possible approaches to tackle those issues will be described. Furthermore, an organization of the related literature addressing the different aspects of EH systems will be provided highlighting the different methodologies adopted for analysis and optimization of EH networks.
The outline of the tutorial is as follows:
The emerging 5G wireless networks aim at ensuring various contemporary wireless applications to be served timely and satisfactorily. For instance, while 4G networks provide 100 Mbps and 1 Gbps peak data rates for mobile and ﬁxed users, respectively, 5G networks are envisioned to support 10 times of the peak data rates of 4G. Moreover, 5G networks have been envisaged to reduce the end-to-end latency of 4G networks, which ranges from 100 to 150 ms, by at least an order of magnitude. Supporting higher data rates in a strict delay requirement increases the energy consumption and hence results in a detrimental impact on the environment. This high-energy consumption has been regarded as one of the main challenges to be tackled in 5G communication systems. Among other approaches towards green communications, EH has been regarded as an environmentally friendlier supply of energy for communication nodes compared to traditional sources of energy. Design and optimization of EH systems are potentially a very fertile area of research and are of signiﬁcant interest to researchers from both academia and industry. Therefore, the topic of the tutorial is very timely. The aim of this tutorial is to provide an extensive overview of EH wireless communication systems and the state-of-the-art research on this topic.
Md. Jahangir Hossain received the B.Sc. degree in electrical and electronics engineering from Bangladesh University of Engineering and Technology (BUET), Dhaka, Bangladesh; the M.A.Sc. degree from the University of Victoria, Victoria, BC, Canada, and the Ph.D. degree from the University of British Columbia(UBC), Vancouver, BC, Canada. He served as a Lecturer at BUET. His industrial experiences include a Senior Systems Engineer position with Redline Communications, Markham, ON, Canada, and a Research Intern position with Communication Technology Lab, Intel, Inc., Hillsboro, OR, USA. He is currently working as an Assistant Professor in the School of Engineering, UBC Okanagan campus, Kelowna, BC, Canada. His research interests include designing spectrally and power-efﬁcient modulation schemes, quality of service issues and resource allocation in wireless networks. Dr. Hossain regularly serves as a member of the Technical Program Committee of the IEEE International Conference on Communications (ICC). He was an Editor for the IEEE Transactions on Wireless Communications. He received the Natural Sciences and Engineering Research Council of Canada Postdoctoral Fellowship. Dr. Md. Jahangir Hossain regularly presents paper in ﬂagship IEEE Communication Conferences. He has provided research seminars in a number of Universities including Columbia University, New York, USA, Chalmers University, Gothenborg, Sweden, the University of South Australia, Adelaide, Australia and the University of Victoria, British Columbia, Canada. He is also invited as a visiting lecturer at King Abdullah University of Science and Technology, Thuwal, Saudi Arabia.
Imtiaz Ahmed is currently working as a postdoctoral fellow in Broadband Communications Research Lab in the department of Electrical and Computer Engineering (ECE) at McGill University, Montreal, QC, Canada. He obtained his Ph.D. from the department of ECE in the University of British Columbia (UBC), Vancouver, BC, Canada. He worked as a lecturer and then as an assistant professor in the department of Electrical and Electronic Engineering (EEE) of Bangladesh University of Engineering and Technology (BUET), Dhaka, Bangladesh after completing his undergraduate and masters degrees from the same university. His research interests include radio resource allocation and performance analysis of different communication systems including cooperative communication systems, massive MIMO and mm-wave propagations, full-duplex systems, energy harvesting communication systems, systems impaired by non-Gaussian noise and interference, etc. His paper was awarded 2nd prize in the IEEE Region 10 undergraduate student paper contest back in 2006. Dr. Imtiaz Ahmed has experience in presenting technical papers in the IEEE conferences including IEEE WCNC’14, IEEE ICC’13, IEEE GlobalSIP’13, IEEE VTC’12, IEEE WCNC’12, and IEEE VTC’10. He presented tutorials in UBC-NCTU workshop in 2014 and UBC-Telus PPFH workshops in 2013 and 2014 in Vancouver, BC, Canada. He delivered quite a few technical talks including the talks in Friedrich-Alexander-Universität Erlangen-Nürnberg in Erlangen, Germany, Indian Institute of Technology, New Delhi, India, and the University of British Columbia, BC, Canada.
David Hiemstra (Macdonald, Dettwiler and Associates - MDA, Brampton, ON, Canada)
Li Chen (University of Saskatchewan, Saskatoon, SK, Canada)
Ewart Blackmore (TRIUMF, Vancouver, BC, Canada)
Manoj Sachdev (University of Waterloo, Waterloo, ON, Canada)
The tutorial targets researchers who are interested in gaining knowledge in radiation effects for space applications. For graduate students, this will be an opportunity for them to pick up general information about radiation effects in silicon devices. For senior researchers, this tutorial will provide a platform and forum for future collaborations, such as collaborative research projects with space companies, collaboration projects on space exploration missions, etc.
The tutorial will include the following items:
David M. Hiemstra received his B.Eng. & Mgt. (1984) and M. Eng. (1993) degrees in Electrical and Biomedical Engineering, respectively from McMaster University. He is a Senior Member of the IEEE. David joined MacDonald, Dettwiler & Associates (MDA), formally Spar Aerospace, in 1984, where he is a Senior Staff Engineer. He is involved in radiation effects and embedded avionics hardening for space, nuclear, and military applications, systems engineering, advanced infrared and visible focal plane array technology, analog circuit design, and electromagnetic compatibility. His current area of research is Single Event Effects in commercial off‐the‐shelf, system on a chip, microelectronics. David has taught space radiation effects on embedded avionics at York University and aerospace firms. He coordinated radiation effects test programs at the University of Toronto Institute for Aerospace Studies, University of Waterloo, and York University. He is currently collaborating with the University of Saskatchewan on the study of single event effects in programmable devices for space instrumentation. David has been active with NSREC, serving as Member‐at‐Large Radiation Effects Steering Group (2000-‐2003), Awards Committee (2002, 2005), Devices and Integrated Circuits Session Chairman (2000), Radiation Effects Data Workshop Chairman (2006), Local Arrangements Chairman (2009) and as a reviewer on an ongoing basis. He has presented papers at every Nuclear and Space Radiation Effects Conference (NSREC) since 1995. David prepares a Guide to the Radiation Effects Data Workshop each year. The guide is available on the NSREC website. He has authored more than 35 papers on radiation effects. David is currently a member of IEEE Adcom Radiation Effects. He is currently the technical lead for EXOMARS Actuator Drive Electronics and OSIRIS‐Rex Laser Altimeter (OLA) embedded avionics.
Li Chen received the B.S degree from Tianjin University, Tianjin, China in 1991, and M.Eng and Ph.D. degrees from University of Alberta, Edmonton, Canada in 2000 and 2004, respectively. Dr. Chen has been a faculty member in the Department of Electrical and Computer Engineering, University of Saskatchewan, since 2006, where he is endowed with the Barbhold Chair Professor in Information Technology. He was promoted to Associate Professor in July 2011. His research interests are in radiation‐ and fault‐tolerant microelectronics, ultra low‐power microelectronics, ultra wideband biomedical sensors and systems. He has more than 80 publications in referred journals and conferences proceedings. Dr. Chen has given tutorial sessions on radiation effects and mitigation techniques for several workshops. He delivered a two‐day workshop at CIAE, China in 2014, and one‐day radiation effects workshop in Shanghai, China 2015. He also was invited to give talks about radiation effect by various institutions, such as University of Albert, Cisco Canada, and CMC Microsystems.
Ewart Blackmore received his Ph.D. in nuclear physics from the University of British Columbia in 1967 after a B.Sc. in engineering physics from Queen’s University. He joined TRIUMF in 1969 and was an important member of the team that built the 500 MeV cyclotron. From 1995–2007 he was project leader for Canada’s $41.5 million contribution of accelerator components to the Large Hadron Collider at CERN. In 2009 he stepped down from his position as head of the TRIUMF Engineering Division to pursue his own research and technology transfer interests. Starting in 1995 he developed the TRIUMF proton therapy facility and the proton and neutron radiation test facilities which now are used routinely by industry, laboratories and university groups for testing for radiation effects. He has been part of several international collaborations carrying out research on radiation effects on electronics leading to 5 outstanding paper awards at the IEEE NSREC conference. He has given a number of invited talks including Intelec 2014 on Terrestrial Radiation Effects on Power Electronics. In addition he has presented 1-2 day tutorials on radiation effects to several Canadian space companies.
Manoj Sachdev received his B.E. degree (with Honors) in electronics and communication engineering from University of Roorkee, India, and Ph.D. from Brunel University, U.K. He was with Semiconductor Complex Limited, Chandigarh, India, from 1984 to 1989 where he designed CMOS Integrated Circuits. From 1989 to 1992, he worked in the ASIC division of SGS-Thomson at Agrate (Milan), Italy. In 1992, he joined Philips Research Laboratories, Eindhoven, The Netherlands, where he researched on various aspects of VLSI testing and manufacturing. Prof. Sachdev is a professor in Electrical and Computer Engineering Department at the University of Waterloo, ON, Canada since 1998. At present, he serves as the department chair and holds the University of Waterloo research chair. His research interests include low power and high performance digital circuit design, mixed-signal circuit design, test and manufacturing issues of integrated circuits. He has contributed to five books, two book chapters, and has authored over 170 technical articles in conferences and journals. He holds more than 30 granted and pending U.S. patents on various aspects of VLSI circuit design, reliability, and test. He received the best paper award at the 1998 European Design and Test Conference, the honorable mention award at the 1999 International Test Conference, the best panel award at the 2004 VLSI Test Symposium, and the best paper award at the 2011 International Symposium on Quality Electronic Design. He has also served on several conference committees. He was the Technical Program Co-Chair for IEEE Mixed-signal Test Workshop in 1999, and the Technical Program Chair for IEEE IDDQ Test Workshop in 1999, and 2000. In 2007–2008, he was an Associate Editor for IEEE Transactions on Vehicular Technology. In 2008 and 2009, he was the Program Chair for Microsystems and Nanoelectronics Research Conference, Ottawa, ON, Canada. He serves on the editorial board of Journal of Electronic Testing: Theory and Applications. He is also the chair of the Test, Debug & Reliability subcommittee of IEEE Custom Integrated Circuits Conference.
Vikram Krishnamurthy (University of British Columbia, Vancouver, BC, Canada)
This tutorial describes the fundamentals of social learning and controlled sensing for adaptive decision making. Such tools are essential in the formulation of mathematical models and design of adaptive radars, reconfigurable sensors and social sensing. The tutorial is in three parts. The first part describes several examples. The second part gives a brief introduction to Bayesian estimation and filtering. The final part briefly outlines how stochastic control (partially observed Markov decision processes) can be used to design smart sensing systems. The tutorial focuses primarily on conceptual formulation and algorithms – it does focus on technology.
Vikram Krishnamurthy is s currently a professor and holds the Canada Research Chair at the Department of Electrical Engineering, University of British Columbia, Vancouver, Canada. His research interests include statistical signal processing, computational game theory and stochastic control in social networks. He served as distinguished lecturer for the IEEE Signal Processing Society and Editor in Chief of IEEE Journal Selected Topics in Signal Processing.