Optimal Image Component Transmissions in Multirate Wireless Sensor Networks

mhempel2's photo
By Michael Hempel Tue, 01/30/2018 - 11:00

Publication Type:

Conference Paper

Authors:

Wei Wang; Dongming Peng; Honggang Wang; Sharif, Hamid; Hsiao-Hwa Chen

Source:

Global Telecommunications Conference, 2007. GLOBECOM '07. IEEE (2007)

Keywords:

data communication, energy consumption, energy efficiency, image processing, image quality, multirate wireless sensor networks, optimal image component transmissions, position-magnitude information, position-value oriented cross layer optimization, wireless sensor networks

Abstract:

In image transmission applications over wireless sensor networks (WSN), energy efficiency and image quality are both important factors for joint optimization. In this paper, we propose a new position-value (P-V) oriented cross layer optimization approach to minimize energy consumption with distortion bounds for image transmission applications in WSN, by exploring importance level diversity for position-magnitude information. To put more effort on transmitting important position information and relatively less effort on unimportant magnitude information, desirable BER, ARQ retry limit, transmission rate and distortion reduction of image are jointly optimized cross PHY, MAC and APP layers, and image quality is assured while energy consumption is minimized. Simulation results demonstrate the effectiveness of the proposed approach in achieving energy efficiency while maintaining image quality.