• D. Lowe and S. Murray are with the Centre for Real-Time Information Networks, University of Technology, Sydney, PO Box 123, Broadway, NSW 2007, Australia.
E-mail: firstname.lastname@example.org, email@example.com.
• E. Lindsay is with the Department of Mechanical Engineering, Curtin University of Technology, GPO Box U1987, Perth, WA 6845, Australia. E-mail: E.Lindsay@curtin.edu.au.
• D. Liu is with the University of Technology, Sydney, PO Box 123, Broadway, NSW 2007, Australia. E-mail: Dikai.Liu@uts.edu.au.
Manuscript received 19 Mar. 2009; revised 18 June 2009; accepted 3 Aug. 2009; published online 13 Aug. 2009.
For information on obtaining reprints of this article, please send e-mail to: firstname.lastname@example.org, and reference IEEECS Log Number TLTSI-2009-03-0038.
Digital Object Identifier no. 10.1109/TLT.2009.33.