We consider the joint source-channel coding problem of sending a Gaussian source over a single input-single output (SISO) fading channel when the decoder has additional correlated side information whose quality is also time-varying. We assume a block fading model for both the channel and side information qualities, and assume perfect state information at the receiver, while the transmitter has only a statistical knowledge. We are interested in the expected squared-error distortion for this system. We study separate source-channel coding,uncoded transmission and a joint source-channel transmission scheme based on joint decoding at the receiver. We then extend joint decoding scheme technique to hybrid digital-analog and multi-layer schemes. We provide numerical results in the finite SNR regime, and derive closed form expressions for the distortion exponent in the high SNR regime. © 2011 IEEE.
Expected distortion with fading channel and side information quality / Aguerri, I. E.; Gunduz, D.. - (2011), pp. 1-6. (Intervento presentato al convegno 2011 IEEE International Conference on Communications, ICC 2011 tenutosi a Kyoto, jpn nel 2011) [10.1109/icc.2011.5962668].
Expected distortion with fading channel and side information quality
D. Gunduz
2011
Abstract
We consider the joint source-channel coding problem of sending a Gaussian source over a single input-single output (SISO) fading channel when the decoder has additional correlated side information whose quality is also time-varying. We assume a block fading model for both the channel and side information qualities, and assume perfect state information at the receiver, while the transmitter has only a statistical knowledge. We are interested in the expected squared-error distortion for this system. We study separate source-channel coding,uncoded transmission and a joint source-channel transmission scheme based on joint decoding at the receiver. We then extend joint decoding scheme technique to hybrid digital-analog and multi-layer schemes. We provide numerical results in the finite SNR regime, and derive closed form expressions for the distortion exponent in the high SNR regime. © 2011 IEEE.Pubblicazioni consigliate
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