Joint source-channel coding with one-bit ADC front end

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Title: Joint source-channel coding with one-bit ADC front end
Authors: Varasteh, M
Gunduz
Osvaldo Simeone
Item Type: Conference Paper
Abstract: This paper considers the zero-delay transmission of a Gaussian source over an additive white Gaussian noise (AWGN) channel with a one-bit analog-to-digital converter (ADC) front end. The optimization of the encoder and decoder is tackled under both the mean squared error (MSE) distortion and the outage distortion criteria with an average power constraint. For MSE distortion, the optimal transceiver is identified over the space of symmetric encoders. This result demonstrates that the linear encoder, which is optimal with a full-precision front end, approaches optimality only in the low signal-to-noise ratio (SNR) regime; while, digital transmission is optimal in the high SNR regime. For the outage distortion criterion, the structure of the optimal encoder and decoder are obtained. In particular, it is shown that the encoder mapping is piecewise constant and can take only two opposite values when it is non-zero. Index Terms-Joint source channel coding, zero-delay transmis- sion, average distortion, outage distortion, one-bit ADC.
Issue Date: 11-Aug-2016
Date of Acceptance: 2-May-2016
URI: http://hdl.handle.net/10044/1/33455
DOI: 10.1109/ISIT.2016.7541862
Copyright Statement: © 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Sponsor/Funder: British Council (UK)
Funder's Grant Number: 173605884
Conference Name: 2016 IEEE International Symposium on Information Theory
Keywords: Science & Technology
Technology
Computer Science, Theory & Methods
Engineering, Electrical & Electronic
Computer Science
Engineering
Joint source channel coding
zero-delay transmission
average distortion
outage distortion
one-bit ADC
cs.IT
cs.IT
math.IT
Publication Status: Published
Start Date: 2016-07-10
Finish Date: 2016-07-15
Conference Place: Barcelona, Spain
Online Publication Date: 2016-08-11
Appears in Collections:Faculty of Engineering
Electrical and Electronic Engineering



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