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Zero-delay joint source-channel coding with a one-bit ADC front end and receiver side information

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Title: Zero-delay joint source-channel coding with a one-bit ADC front end and receiver side information
Authors: Varasteh, M
Rassouli, B
Gunduz, D
Osvaldo Simeone
Item Type: Conference Paper
Abstract: Zero-delay transmission of a Gaussian source over an additive white Gaussian noise (AWGN) channel with a 1-bit analog-to-digital converter (ADC) front end is investigated in the presence of correlated side information at the receiver. The design of the optimal encoder is considered for the mean squared error (MSE) distortion criterion under an average power constraint on the channel input. A necessary condition for the optimality of the encoder is derived. A numerically optimized encoder (NOE) is then obtained that aims that enforcing the necessary condition. It is observed that, due to the availability of receiver side information, the optimal encoder mapping is periodic, with its period depending on the correlation coefficient between the source and the side information. We then propose two parameterized encoder mappings, referred to as periodic linear transmission (PLT) and periodic BPSK transmission (PBT), which trade-off optimality for reduced complexity as compared to the NOE solution. We observe via numerical results that PBT performs close to the NOE in the high signal-to-noise ratio (SNR) regime, while PLT approaches the NOE performance in the low SNR regime.
Issue Date: 27-Oct-2016
Date of Acceptance: 6-Jun-2016
URI: http://hdl.handle.net/10044/1/38943
DOI: https://dx.doi.org/10.1109/ITW.2016.7606874
Publisher: IEEE
Journal / Book Title: 2016 IEEE Information Theory Workshop (ITW)
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: IEEE Information Theory Workshop
Keywords: Science & Technology
Computer Science, Theory & Methods
Engineering, Electrical & Electronic
Computer Science
Joint source channel coding
zero-delay transmission
1-bit ADC
correlated side information
Publication Status: Published
Start Date: 2016-09-11
Finish Date: 2016-09-14
Conference Place: Cambridge, UK
Appears in Collections:Electrical and Electronic Engineering
Faculty of Engineering