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Accession Number ADA562488
Title Spread Spectrum Visual Sensor Network Resource Management Using an End- to-End Cross-Layer Design.
Publication Date Feb 2011
Media Count 8p
Personal Author B. W. Suter E. S. Bentley J. D. Matyjas L. P. Kondi M. J. Medley
Abstract In this paper, we propose an approach to manage network resources for a direct sequence code division multiple access (DSCDMA) visual sensor network where nodes monitor scenes with varying levels of motion. It uses cross- layer optimization across the physical layer, the link layer, and the application layer. Our technique simultaneously assigns a source coding rate, a channel coding rate, and a power level to all nodes in the network based on one of two criteria that maximize the quality of video of the entire network as a whole, subject to a constraint on the total chip rate. One criterion results in the minimal average end-to-end distortion amongst all nodes, while the other criterion minimizes the maximum distortion of the network. Our experimental results demonstrate the effectiveness of the cross-layer optimization.
Keywords Chips(Electronics)
Code division multiple access
Convolutional codes
Joint source-channel coding
Multimedia communications
Physical properties
Power control
Resource allocation
Sense organs
Visual perception
Visual sensor network

Source Agency Non Paid ADAS
NTIS Subject Category 57A - Anatomy
57S - Physiology
45C - Common Carrier & Satellite
Corporate Author State Univ. of New York at Buffalo. Dept. of Electrical and Computer Engineering.
Document Type Journal article
Title Note Journal article.
NTIS Issue Number 1225
Contract Number FA8750-08-1-0063

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