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Wireless image transmission is critical in many
applications, such as surveillance and environment monitoring.
In order to make the best use of the limited energy of the
battery-operated cameras, while satisfying the application-level
image quality constraints, cross-layer design is critical. In this
paper, we develop an image transmission model that allows the
application layer (e.g., the user) to specify an image quality
constraint, and optimizes the lower layer parameters of transmit
power and packet length, to minimize the energy dissipation
in image transmission over a given distance. The effectiveness
of this approach is evaluated by applying the proposed energy
optimization to a reference ZigBee system and a WiFi system,
and also by comparing to an energy optimization study that does
not consider any image quality constraint. Evaluations show that
our scheme outperforms the default settings of the investigated
commercial devices and saves a significant amount of energy at
middle-to-large transmission distances.
CitationYang, N.; Seyfettin, I.; Heinzelman, W. Cross-layer energy optimization under image quality constraints for wireless image transmissions. A: International Wireless Communications and Mobile Computing Conference. "Wireless Communications and Mobile Computing Conference (IWCMC), 2012 8th International". 2012, p. 1000-1005.
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