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A Low-Rate Multi-Level Voice/Video Transceiver for Personal Communications

A Low-Rate Multi-Level Voice/Video Transceiver for Personal Communications
A Low-Rate Multi-Level Voice/Video Transceiver for Personal Communications
A personal communication system (PCS) transceiver is proposed and investigated. A 4.8 kbit/s transformed binary pulse excited (TBPE) linear predictive speech codec, embedded source sensitivity-matched binary Bose-Chaudhuri-Hocquenghem (BCH) block error correction codecs, non-coherent differentially coded 16-level quadrature amplitude modulation (16-QAM) modem and packet reservation multiple access (PRUA) are deployed. The 2.15 kBd transceiver requires a signal-to-noise ratio (SNR) and signal-to-interference ratio (SIR) in excess of about 24 dB over Rayleigh-fading channels in order to support 1&11 nearly un-impaired voice conversations within a bandwidth of 30 kHz. Additionally, by reserving two PRMA time slots for video telephony, an 8.52 kbps videophone user can also be supported.
Key words: Wireless multimedia communications, mobile voice and video telephony, transformed binary pulse excited speech coding, multilevel modulation, packet reservation multiple access, the Pan-American IS-54 mobile system.
217-234
Hanzo, L
66e7266f-3066-4fc0-8391-e000acce71a1
Streit, J
00c8766c-91a2-4ed0-a543-0549499907ec
Salami, R A
63208dd1-2af2-49c2-a495-dfee08fc60b8
Webb, W T
c2a88b7b-d36a-4e48-a396-58c788ffd177
Hanzo, L
66e7266f-3066-4fc0-8391-e000acce71a1
Streit, J
00c8766c-91a2-4ed0-a543-0549499907ec
Salami, R A
63208dd1-2af2-49c2-a495-dfee08fc60b8
Webb, W T
c2a88b7b-d36a-4e48-a396-58c788ffd177

Hanzo, L, Streit, J, Salami, R A and Webb, W T (1995) A Low-Rate Multi-Level Voice/Video Transceiver for Personal Communications. Wireless Personal Communications, 2 (3), 217-234.

Record type: Article

Abstract

A personal communication system (PCS) transceiver is proposed and investigated. A 4.8 kbit/s transformed binary pulse excited (TBPE) linear predictive speech codec, embedded source sensitivity-matched binary Bose-Chaudhuri-Hocquenghem (BCH) block error correction codecs, non-coherent differentially coded 16-level quadrature amplitude modulation (16-QAM) modem and packet reservation multiple access (PRUA) are deployed. The 2.15 kBd transceiver requires a signal-to-noise ratio (SNR) and signal-to-interference ratio (SIR) in excess of about 24 dB over Rayleigh-fading channels in order to support 1&11 nearly un-impaired voice conversations within a bandwidth of 30 kHz. Additionally, by reserving two PRMA time slots for video telephony, an 8.52 kbps videophone user can also be supported.
Key words: Wireless multimedia communications, mobile voice and video telephony, transformed binary pulse excited speech coding, multilevel modulation, packet reservation multiple access, the Pan-American IS-54 mobile system.

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More information

Published date: November 1995
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 251386
URI: http://eprints.soton.ac.uk/id/eprint/251386
PURE UUID: 0af7f300-99b1-4c7f-ad8a-9ebd15213f07
ORCID for L Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 01 Nov 1999
Last modified: 18 Mar 2024 02:32

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Contributors

Author: L Hanzo ORCID iD
Author: J Streit
Author: R A Salami
Author: W T Webb

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