Experimental Results
n Implemented MP3 player, encapsulated decoder as mobile
agent, to execute locally or remotely
n Various performance experiments, study impact of
– Available Bandwidth (19.2 kbps – 2 Mbps)
– Relative CPU speed (Mobile CPU: Proxy CPU)
n 1:4 for laptop as client device
n 1:116 for Windows CE palmtop as client device
n Results:
– for high bandwidth and slow client, offloading decoding “agent” to
proxy can speed up application performance by a factor of 20 and
reduce power consumption by 95%
– For faster client devices, independent of bandwidth, no benefit
(actually worse performance) when decoding sound samples in
access network