Power optimized space-time code for layer coded multimedia overwireless channels
Zheng, H.
Liu, K.J.R.
Dept. of Electr. Eng. & Syst. Res. Center, Maryland Univ., College Park, MD;
This paper appears in: Image Processing, 1999. ICIP 99. Proceedings. 1999 International Conference on
Publication Date: 1999
Volume: 3,
On page(s): 95-99 vol.3
Meeting Date: 10/24/1999 - 10/28/1999
Location: Kobe, Japan
ISBN: 0-7803-5467-2
References Cited: 8
INSPEC Accession Number: 6521852
Digital Object Identifier: 10.1109/ICIP.1999.817076
Current Version Published: 2002-08-06
Abstract
A power optimized space-time code is presented for reliable
delivery of layer coded multimedia, data through wireless channels.
Appropriate power control further improves the performance of space time
coding. By allocating transmitted power according to the layer
perceptual importance, unequal error protection is achieved. Numerical
example shows that the proposed algorithm achieves 6 dB PSNR improvement
compared to that with equal power distribution in low SNR range
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