The University of Southampton
University of Southampton Institutional Repository

Robust Programmable-Rate Wireless Graphical Correspondence

Hanzo, L and Yuen, H (1997) Robust Programmable-Rate Wireless Graphical Correspondence European Transactions on Communications, 8, (3), pp. 271-283.

Record type: Article

Abstract

An adaptive fixed-length differential chain coding (FL-DCC) scheme is proposed for the transmission of line graphics, which canbe re-configured as a lower rate, lower resolution or higher rate. higher resolution source codec. Compared to Differential Chain Coding (DCC), the proposed FL-DCC codec has a lower coding rate in both of its lower- and higher-rate operating modes, while maintaining a similar subjective graphical quality.The dual-rate re-configurable FL-DCC codec is embedded in a voice, video multimedia communicator system, which allocates the FL-DCC graphics packets Lo idle speech packets with the aid of the Packet Reservation Multiple Access (PRMA) multiplexer. In a bandwidth of 200 kHz, which is characteristic of the Pan-European GSM system, nine speech, video and graphics multimedia users can be accommodated using bandwidth efficient 16-level Quadrature Amplitude Modulation (16QAM) over benign ~nicrocellular channels.Under less favourable propagation conditions the more robust, but less bandwidth efficient 3QAM mode of operation can be invoked. In the diversity-aided and automatic repeat request (ARQ) assisted I6QAM mode of operation the multimedia user bandwidth becomes 22.2 kHz and the minimum required channel signal to noise ratio (SNR) over AWCN and Rayleigh channels is about 11 and 15 dB, respectively. The most salient system features are summarised in Table 2.

PDF lh-ahy-sigproc-may1997.pdf - Other
Download (1MB)

More information

Published date: May 1997
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 251340
URI: http://eprints.soton.ac.uk/id/eprint/251340
PURE UUID: a63d75e4-5a48-4eb7-ba6b-7cbd96ff5919

Catalogue record

Date deposited: 27 Oct 1999
Last modified: 18 Jul 2017 10:10

Export record

Contributors

Author: L Hanzo
Author: H Yuen

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×