Recent studies show that the ICT industry is responsible for approximately 2% of the global CO2 emission and this percentage is predicted to continue increasing as the Internet expands in capacity and reach. In this talk we will introduce measures that can be used to reduce the power consumption of the Internet. We will introduce mixed integer linear programming (MILP) network optimization giving a short overview of MILP and build on this and heuristics inspired by it to explore a number of energy and carbon footprint reduction measures including (i) Optimum use of time varying renewable energy in core networks (ii) Physical topology design considering perational and embodied energies (iii) Elastic optical networks using mixed line rates and optical OFDM (iv) Optimum resource allocation and green network design with data centres (v) Dynamic energy-efficient content caching (vi) Energy-efficient peer-to-peer content istribution (vii) Energy-efficient distributed clouds (viii) Energy-efficient network virtualisation.

Bio
Prof. Jaafar Elmirghani is a Fellow of the IET, Fellow of the Institute of Physics, Senior Member of the IEEE and is the Director of the Institute of Integrated Information Systems, University of Leeds, UK. He is and has been on the technical program committee of 31 IEEE ICC/GLOBECOM conferences between 1995 and 2013 including 13 times as Symposium Chair. He received the IEEE Comsoc 2005 Hal Sobol award for exemplary service to meetings and conferences, the IEEE Comsoc 2005 Chapter Achievement award, the University of Wales Swansea inaugural âOutstanding Research Achievement Awardâ, 2006, the IEEE Comsoc Signal Processing and Communication Electronics outstanding service award, 2009 and an IEEE ICC 2013 Best Paper award. He is currently an editor of IET Optoelectronics. He has been awarded in excess of £20 million in grants to date, has published over 400 technical papers, and has research interests in communication networks and energy efficiency.