Monash University IEEE Student Branch and IEEE Communications Society Chapter Lunchtime Seminar:

Radio Systems Techniques for Enhancing Energy Efficiency, Reducing Interference and Parasitic Radiation

Abstract:
Wireless Radio usage for communication is one of the main promoters of economic and social growth and its importance is predominant for defence and security issues. Therefore, significant resources are invested in improving radio communication systems, especially mobile Radio systems users, handsets and equipment. For cellular communication only, the number of handsets exceeds the 1000 millions and soon will outnumber wired phones.

However, the energy efficiency of the systems base stations is still very low. Most of the transmitted energy and radiated power density are wasted as interference and only a very small part is useful and eventually reaches the desired receivers. The energy efficiency of the mobile handsets is worse, and up to 65% of the transmitted energy can be wasted in the user’s head and body, as a radiation hazard instead of reaching the adequate base stations.

This seminar analyses and computes base station radiation effects under far field propagation conditions and collocated handset radiation under complex near field conditions. Main mitigation techniques using other power control; signal processing methods, smart antennas and possible meta-material techniques will be described. This will be followed by proper shielding diversity, filtering, parasitic power cancellation and other mitigation techniques useful for reduction of non desired-parasitic radiation intensities and energy.

This seminar’s main purpose is to bring to light the possibilities for increasing energy efficiency and quality of base stations and handsets specifically by decreasing the required transmitted radiation power, equipment’s power consumption, batteries load and the radiated power and energy absorbed by human beings.

Presenter(s):
Jacob Gavan earned the B.Sc. degree in the Technion Haifa 1961, the MEE in Eindhoven Technological University the Nederland, in 1969 and his Ph.D. degree in radio communication in 1979 in ENSERG Grenoble (France) with congratulations of the Jury. Jacob Gavan was elected as IEEE fellow in 1995 and founded a department of Communication Engineering at the Holon Academic Institute of Technology (HAIT, Israel). He was selected to Dean of the HAIT new school of Electrical, Electronic and Communication Engineering as Full Professor from December 2001.

Jacob Gavan has published over 150 papers on theoretical and applied radio and Satellite communications, electromagnetics, and Radar Systems especially on Radio mutual Interference and Radiation effects. He is active in the Union Radio Science International URSI Commission E and Chairman of E8 working group on “Interference in Radio Systems above 30 MHz” and in General Assembly Session E/C/F "Interference in radio communication".

Registration is encouraged though visitors are welcome. For further information, please contact Craig Skinner (c.a.skinner@ieee.org, (03) 9601 6739)

For more information about the Victorian Section of the IEEE, visit our website at:
http://www.ieeevic.org