Jaafar Elmirghani





Prof. Jaafar Elmirghani, University of Leeds, UK
Title: Greening big data IoT networks: Volume, Velocity, Variety, Veracity and the like
Abstract: Network traffic continues to grow at unprecedented rates, driven partly by video, but more recently by different forms of big data attributed to the increase in IoT data sources which are expected to exceed hundreds of billions of sources. Traffic attributed to healthcare, financial, industrial and personal use of IoT sources continues to grow. The big data generated has a number of key characteristics which include its huge volume, its varied forms and sources which may deliver the same information, its velocity where fast action may be needed and its veracity. The transmission of big data from the IoT sources at the edge of the network to data centres, often located in the heart of the network, can cause huge increase in network power consumption. Edge processing can assist, however, in addition, users are mostly interested in the knowledge embedded in the big data and not in the data itself. Therefore huge data compression may be possible and useful. In this talk we explore the projected power consumption due to big data. We examine a new form of “progressive processing” where the big data is initially processed at the edge of the network to extract small “knowledge” packets with subsequent processing in the network on route to data centres. This introduces a new form of “tapered data networks” where the network traffic decreases in volume as the traffic flow progresses from the edge towards data centres. We explore the implications of volume, velocity, variety and veracity on greening big data networks and outline future directions.
Short bio: Prof. Jaafar Elmirghani is FIET, FIoP, and Director of the Institute of Integrated Information Systems, Leeds. He has provided outstanding leadership in a number of large research projects, and was PI of the £6m EPSRC Intelligent Energy Aware Networks (INTERNET) Programme Grant. He is Co-Chair of the IEEE Green ICT initiative, a pan IEEE Societies initiative responsible for Green ICT activities across IEEE. He was awarded the IEEE Comsoc 2005 Hal Sobol award, 2 IEEE Comsoc outstanding service awards (2009, 2015), the 2015 GreenTouch 1000x award, IET Optoelectronics 2016 Premium Award and shared the 2016 Edison Award in the collective disruption category with a team of 6 from GreenTouch for joint work on the GreenMeter. His work led to 5 IEEE standards with a focus on energy efficiency, where he currently heads the work group responsible for IEEE P1925.1, IEEE P1926.1, IEEE P1927.1, IEEE P1928.1 and IEEE P1929.1, this resulting in significant impact through industrial and academic uptake. He was an IEEE Comsoc Distinguished Lecturer 2013-2016. He has published over 450 technical papers, and has research interests in green communication networks.