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Burst-by-burst Adaptive Joint-Detection CDMA/H.26L Based Wireless Video Telephony using TTCM and LDPC Codes

Chung, J.Y., Guo, F., Ng, S.X. and Hanzo, L. (2003) Burst-by-burst Adaptive Joint-Detection CDMA/H.26L Based Wireless Video Telephony using TTCM and LDPC Codes At of VTC'2003 (Fall), United States. 06 - 09 Oct 2003.

Record type: Conference or Workshop Item (Paper)

Abstract

A low bit-rate video coding techniques using the H.26L standard codec for robust transmission in mobile multimedia environments are presented. For the sake of achieving error resilience, the source codec has to make provisions for error detection, resynchronization and error concealment. Thus a packetization technique invoking adaptive bit-rate control was used in conjuction with the various modulation scheme employed. In this contribution, we propose a Burst-by-Burst Adaptive Coded Modulation-Aided Joint Detection-Based CDMA (ACM-JD-CDMA) scheme for wireless video telephony and characterise its performance when communicating over the UTRA wideband vehicular fading channels. The coded modulation schemes invoked in our fixed modulation mode based systems are Low Density Parity Check code based Block Coded Modulation (LDPC-BCM) and Turbo Trellis CodedModulation (TTCM). The performance of LDPC-BCM was evaluated and compared to that of TTCM in the context of the ACM-JD-CDMA system using a practical modem mode switching regime. Both schemes exhibited a similar transmission integrity, although the LDPC arrangement is capable of achieving this at a lower complexity.

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More information

Published date: 2003
Additional Information: CD-Rom 08B_01 Event Dates: 6-9 October 2003
Venue - Dates: of VTC'2003 (Fall), United States, 2003-10-06 - 2003-10-09
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 258426
URI: http://eprints.soton.ac.uk/id/eprint/258426
PURE UUID: 37bf1289-cfb2-418e-97d9-b935182360d4

Catalogue record

Date deposited: 29 Oct 2003
Last modified: 18 Jul 2017 09:32

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Contributors

Author: J.Y. Chung
Author: F. Guo
Author: S.X. Ng
Author: L. Hanzo

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