Turbo-Detected Unequal Protection Audio and Speech Transceivers Using Serially Concantenated Convolutional Codes, Trellis Coded Modulation and Space-Time Trellis Coding


Othman, N. S., Ng, S. X. and Hanzo, L. (2005) Turbo-Detected Unequal Protection Audio and Speech Transceivers Using Serially Concantenated Convolutional Codes, Trellis Coded Modulation and Space-Time Trellis Coding. In, IEEE VTC'05 (Fall), Intercontinental Hotel, Dallas, Texas, USA, 25 - 28 Sep 2005. , 1044-1048.

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Description/Abstract

The MPEG-4 TwinVQ audio codec and the AMR-WB speech codec are investigated in the context of a jointly optimised turbo transceiver capable of providing unequal error protection. The transceiver advocated consists of serially concatenated Space-Time Trellis Coding (STTC), Trellis Coded Modulation (TCM) and two different-rate Non-Systematic Convolutional codes (NSCs) used for unequal error protection. A benchmarker scheme combining STTC and a single-class protection NSC is used for comparison with the proposed scheme. The audio and speech performance of both schemes is evaluated, when communicating over uncorrelated Rayleigh fading channels. An $E_b/N_0$ value of about 2.5 (3.5)~dB is required for near-unimpaired audio (speech) transmission, which is about 3.07 (4.2)~dB from the capacity of the system.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Event Dates: 25-28 September 2005
Divisions: Faculty of Physical Sciences and Engineering > Electronics and Computer Science > Comms, Signal Processing & Control
ePrint ID: 261483
Date Deposited: 17 Oct 2005
Last Modified: 27 Mar 2014 20:04
Further Information:Google Scholar
ISI Citation Count:0
URI: http://eprints.soton.ac.uk/id/eprint/261483

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