Othman, N. S., Ng, S. X. and Hanzo, L.
Turbo-Detected Unequal Protection Audio and Speech Transceivers Using Serially Concantenated Convolutional Codes, Trellis Coded Modulation and Space-Time Trellis Coding
At IEEE VTC'05 (Fall), United States.
25 - 28 Sep 2005.
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.
Conference or Workshop Item
||Event Dates: 25-28 September 2005
|Venue - Dates:
||IEEE VTC'05 (Fall), United States, 2005-09-25 - 2005-09-28
||Southampton Wireless Group
||17 Oct 2005
||17 Apr 2017 21:57
|Further Information:||Google Scholar|
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