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Informatics Lecture - 'High Bandwidth Mobile Communications - Overcoming the Free Space Limitations

Lecture

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This talk will consider one class of solutions to the free space problem which is being advanced by Australian users, operators and developers of higher bandwidth mobile communications.

Date and Time

27 March 2014 - 17:30-20:00

Location

Brisbane, Australia - icon_popup  (See map)

Organiser


About this event

Speaker: Dr John Ness - CTO, EM Solutions

Humans like to talk and to walk and it is the technological expression of these basic biological urges that has underpinned the employment of electrical engineers over the past 100 years or so. The motor vehicle was probably the dominant technology determinant of the last century – the escalation of the walk urge to go faster and further more often. The fixed line telephone was perhaps the second major technology which basically only extended the ability to talk individually over longer distance between fixed points. 

The mobile phone, which combined and liberated the walk/talk impulse, was first demonstrated by the British Post Office in the early 1920’s but for various technical reasons was basically dormant until the 1990’s.  The rate of growth in mobile phones and their data equivalents since then has surpassed that of any other technological innovation such that in 2014 it is expected that there will be nearly 9 billion mobile subscriptions or more than the number of humans on this planet.

Mobile communications are delivered by a variety of infrastructures but all require some form of free space propagation at the end points. The ongoing demand to increase information rates, improve reliability and make communications truly ubiquitous is the technology driver particularly at the free space end of the chain where fundamental issues of noise, interference and spectrum limitations have to be addressed.

This talk will consider one class of solutions to the free space problem which is being advanced by Australian users, operators and developers of higher bandwidth mobile communications. As well as the communication technology challenges, we know now that any activity that consumes energy on the scale required for these technological walk and talk capabilities, modifies the global environment so it is useful to consider what the options are for minimising the energy and entropy burdens added by this massive expansion in mobile communications.


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