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2009
IEEE

Analog Joint Source Channel Coding Using Space-Filling Curves and MMSE Decoding

10 years 8 months ago
Analog Joint Source Channel Coding Using Space-Filling Curves and MMSE Decoding
We investigate the performance of a discrete-time all-analog-processing joint sourcechannel coding system for the transmission of i.i.d. Gaussian and Laplacian sources over AWGN channels. In the encoder, two samples of an i.i.d. source are mapped into a channel symbol using a space-filling curve. Different from previous work in the literature, MMSE decoding instead of ML decoding is considered, and we focus on both high and low channel SNR regions. The main contribution of this paper is to show that the proposed system presents a performance very close to the theoretical limits, even at low SNR, as long as the curve parameters are properly optimized.
Yichuan Hu, Javier Garcia-Frias, Meritxell Lamarca
Added 24 Nov 2009
Updated 24 Nov 2009
Type Conference
Year 2009
Where DCC
Authors Yichuan Hu, Javier Garcia-Frias, Meritxell Lamarca
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