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


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.

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Description/Abstract

A personal communication system (PCS) transceiver is proposed and investigated. A 4.8 kbitls 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.

Item Type: Article
Divisions: Faculty of Physical Sciences and Engineering > Electronics and Computer Science > Comms, Signal Processing & Control
ePrint ID: 251386
Date Deposited: 01 Nov 1999
Last Modified: 27 Mar 2014 19:52
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/251386

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