COMP20252: Mobile Systems (2007-2008)
Computing is becoming increasingly mobile. This unit will give insights into the issues of mobile systems, covering mobile communications, real-time signals such as speech, video and music, codecs, and maximising battery life.
A student completing this course should:
Appreciate the issues that differentiate mobile from tethered systems.
Have a working knowledge of speech, music and video codecs.
Understand the basics of wireless communication.
Appreciate the holistic nature of power-efficient system design.
Assessment of Learning outcomesAll learning outcomes will probably be assessed incrementally in the laboratory
Contribution to Programme Learning OutcomesTBD
Commonplace examples of mobile computing systems: - mobile phones; - MP3 players; - laptop computers; - PDAs; - GPS satellite navigation.
Analogue and digital signals; - time and frequency domain representations; - sampling, aliasing, quantization; - companding; - real-time computation.
Coding, decoding and compression
GSM speech coding; - MP3 music, JPEG image and MPEG video coding & decoding; - error correcting codes; - communications coding schemes.
Transmitting real-time information over wireless networks; - principles of cellular and ad-hoc networks; - Coding of multimedia signals - to increase the capacity of radio channels; - to minimise the effect of transmission errors.
Maximising battery life
May be addressed at many levels including: - chip design; - signal coding and processing; - medium access control; - transmit power control.
Core TextTitle: Computer networks (5th edition)
Author: Tanenbaum, Andrew S. and David Wetherall
Publisher: Prentice Hall