Abstract:
The use of mobile computing devices has become more and more common as such de
vices have become more
and more affordable and powerful. With increase in through
put ~peed and decrease in device size, wireless multimedia streaming to battery pow
ered mobile devices have become widespread. However,
the battery power has not
kept up with the advances in technology and has not increased so rapidly. This defi
ciency in
battery power provides motivation for development of more power efficient
multimedia streaming methods and procedures.
This research proposes an Adaptive-Buffer Power Save Mechanism (AB-PS:vI) for in
creasing
the battery life of mobile devices during multimedia streaming. This increase
is achieved by controlling how and when data is sent over a wireless LAN. AB-PSM
introduces an additional buffer which hides
data from the station it is intended for,
allowing it
to return to sleep and consequently saving power. Data is eventually
delivered in one of
the stations following attempts to receive it. Tests involving AB
PSM have been performed and show good simulation results in terms of significant
increases in
battery lifetime. The comparison between AB-PSM and the Institute
of Electrical and Electronics Engineers (IEEE )802.11 legacy power save mechanism
shows
important increases in battery lifetime of more than 100%.
