Selective error protection of ITU-T G.729 codec for digital cellular channels

Authors:
K. Swaminathan;M. Austin
Affiliations:
Hughes Network Syst. Inc., Germantown, MD, USA;Interactive Syst. Lab., Carnegie Mellon Univ., Pittsburgh, PA, USA
Venue:
ICASSP '96 Proceedings of the Acoustics, Speech, and Signal Processing, 1996. on Conference Proceedings., 1996 IEEE International Conference - Volume 01
Year:
1996

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Abstract

The recently adopted ITU-T G.729 8 kbps codec standard's performance is evaluated for digital cellular channels that are characterized by Rayleigh fading. Two forward error correction schemes (FEC) are studied. They are the convolutional code based FEC and the Nordstrom Robinson based FEC. The effects of interleaving depth are investigated for both FEC schemes. Both flat fading as well as co-channel interference limited models are used in our study.