Effects of PRMA on Objective Speech Quality
Effects of PRMA on Objective Speech Quality
When transmitting 32kbit/s adaptive differential pulse(ADPCM) speech using Reed-Solomon error correction coding and 16 level quadrature amplitude modulation(16-QAM), our 20 slot packet reservation multiple access(PRMA) assisted cordless telecommunications(CT) scheme supported 36-38 speech users with negligible objective and subjective speech degradation. The average number of users per slot was nearly doubled due to deploying PRMA and toll quality speech was transmitted in a user bandwidth ~11.6kHz. For a channel signal-to-noise(SNR) in excess of 25dB, a Rayleigh fading channel and mobile speeds above 2mph the speech segmental SNR degradation was less than 0.3dB.
152-153
Cheung, JCS
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Hanzo, L
66e7266f-3066-4fc0-8391-e000acce71a1
Webb, WT
37b26109-ae46-4bbb-b0bb-d7b89a62b9e9
Steele, R
7035a3e5-8a4c-434b-a105-46fe2d63d5c3
January 1993
Cheung, JCS
eec560f1-18d1-4c83-a7b8-61dc7f4197e5
Hanzo, L
66e7266f-3066-4fc0-8391-e000acce71a1
Webb, WT
37b26109-ae46-4bbb-b0bb-d7b89a62b9e9
Steele, R
7035a3e5-8a4c-434b-a105-46fe2d63d5c3
Cheung, JCS, Hanzo, L, Webb, WT and Steele, R
(1993)
Effects of PRMA on Objective Speech Quality.
Electronics Letters, 29 (2), .
Abstract
When transmitting 32kbit/s adaptive differential pulse(ADPCM) speech using Reed-Solomon error correction coding and 16 level quadrature amplitude modulation(16-QAM), our 20 slot packet reservation multiple access(PRMA) assisted cordless telecommunications(CT) scheme supported 36-38 speech users with negligible objective and subjective speech degradation. The average number of users per slot was nearly doubled due to deploying PRMA and toll quality speech was transmitted in a user bandwidth ~11.6kHz. For a channel signal-to-noise(SNR) in excess of 25dB, a Rayleigh fading channel and mobile speeds above 2mph the speech segmental SNR degradation was less than 0.3dB.
Text
jcsc.lh.wtw.rs-iee-eleclett-jan-1993.pdf
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Published date: January 1993
Venue - Dates:
Electronic Letters, 1993-01-01
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 257028
URI: http://eprints.soton.ac.uk/id/eprint/257028
ISSN: 0013-5194
PURE UUID: daf88df9-0c0f-4286-91be-408e9267051e
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Date deposited: 10 Dec 2002
Last modified: 18 Mar 2024 02:33
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Contributors
Author:
JCS Cheung
Author:
L Hanzo
Author:
WT Webb
Author:
R Steele
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