Transmission of SBC Speech via 16-Level QAM
Transmission of SBC Speech via 16-Level QAM
The transmission of 16 kb/s sub-band coded (SBC) speech via Reed-Solomon (RS) coding and 16-level QAM modulation over Rayleigh fading channel is addressed. An average locking AGC method is described, which requires no side-information to be transmitted. Different RS coders were used to code the SBC bits depending on their perceptual significance and their position in the Gray coded QAM words. Proposed schemes operating at 5.3 and 6.7 kbaus yielded near toll quality speech for channel SNRs in excess of 29 and 22 dB, and delays of 180 and 144mm, respectively, for vehicular speeds of 30 and 60mph.
26.6.1-26.6.5
Fortune, P M
be27830a-9602-44e5-8fe4-9449f4995236
Hanzo, L
66e7266f-3066-4fc0-8391-e000acce71a1
Steele, R
7035a3e5-8a4c-434b-a105-46fe2d63d5c3
December 1988
Fortune, P M
be27830a-9602-44e5-8fe4-9449f4995236
Hanzo, L
66e7266f-3066-4fc0-8391-e000acce71a1
Steele, R
7035a3e5-8a4c-434b-a105-46fe2d63d5c3
Fortune, P M, Hanzo, L and Steele, R
(1988)
Transmission of SBC Speech via 16-Level QAM.
Globecom'88, Hollywood, Flordia, United States.
28 Nov - 01 Dec 1988.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
The transmission of 16 kb/s sub-band coded (SBC) speech via Reed-Solomon (RS) coding and 16-level QAM modulation over Rayleigh fading channel is addressed. An average locking AGC method is described, which requires no side-information to be transmitted. Different RS coders were used to code the SBC bits depending on their perceptual significance and their position in the Gray coded QAM words. Proposed schemes operating at 5.3 and 6.7 kbaus yielded near toll quality speech for channel SNRs in excess of 29 and 22 dB, and delays of 180 and 144mm, respectively, for vehicular speeds of 30 and 60mph.
Text
pmf-lh-rs-globecomm-1988.pdf
- Other
More information
Published date: December 1988
Additional Information:
Event Dates: 28 November - 1 December 1988 Organisation: Globecom Address: Florida, USA
Venue - Dates:
Globecom'88, Hollywood, Flordia, United States, 1988-11-28 - 1988-12-01
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 257065
URI: http://eprints.soton.ac.uk/id/eprint/257065
PURE UUID: 429e9251-72e4-4efd-952b-9a0abfb7a3b8
Catalogue record
Date deposited: 11 Dec 2002
Last modified: 18 Mar 2024 02:33
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Contributors
Author:
P M Fortune
Author:
L Hanzo
Author:
R Steele
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