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Power Aware Image Transmission in Energy Constrained Wireless Networks Huaming Wu and Alhussein A. Abouzeid
 

Summary: Power Aware Image Transmission in Energy Constrained Wireless Networks
Huaming Wu and Alhussein A. Abouzeid
Department of Electrical, Computer and Systems Engineering
Rensselaer Polytechnic Institute, Troy, New York 12180
Email: wuhm@rpi.edu, abouzeid@ecse.rpi.edu
Abstract
We consider transmitting images in a multi-hop wireless
network with the minimal total power consumption while
satisfying an end-to-end image quality constraint. Contrary
to popular belief, we show that maximum compression be-
fore transmission does not always provide minimal energy
consumption, especially in the case of dense sensor net-
works with complex signal processing algorithms. We for-
mulate the minimal energy transmission problem as an op-
timization problem and present a heuristic algorithm for it.
The proposed algorithm selects the optimal image compres-
sion parameters to minimize total energy dissipation given
the network conditions and image quality constraints. Sim-
ulation results show up to 80% reduction in the total power
consumption achieved by using the proposed adaptive algo-

  

Source: Abouzeid, Alhussein A. - Department of Electrical, Computer and Systems Engineering, Rensselaer Polytechnic Institute

 

Collections: Engineering; Computer Technologies and Information Sciences