|
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
Coding
Convolutional codes
Cross-layer
Dp
Joint source-channel coding
Monitoring
Multimedia communications
Networks
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
|
