Zero-delay joint source-channel coding with a one-bit ADC front end and receiver side information
File(s)
Accepted version
Author(s)
Varasteh, M
Rassouli, B
Gunduz, D
Osvaldo Simeone
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.
Date Issued
2016-10-27
Date Acceptance
2016-06-06
Citation
2016 IEEE Information Theory Workshop (ITW), 2016
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
British Council (UK)
Grant Number
173605884
Source
IEEE Information Theory Workshop
Subjects
Science & Technology
Technology
Computer Science, Theory & Methods
Engineering, Electrical & Electronic
Computer Science
Engineering
Joint source channel coding
zero-delay transmission
1-bit ADC
correlated side information
COMMUNICATION
Publication Status
Published
Start Date
2016-09-11
Finish Date
2016-09-14
Coverage Spatial
Cambridge, UK