Title :
H.263-based wireless video transmission in multicode CDMA systems
Author :
Hueda, Mario R. ; Marqués, Carlos A.
Author_Institution :
Laboratorio de Comunicaciones Digitales, Univ. Nacional de Cordoba, Spain
fDate :
6/23/1905 12:00:00 AM
Abstract :
We present a simple and accurate semi-analytic methodology for performance evaluation of wireless video transmission in multicode DS-CDMA (MC-CDMA). Based on the novel approach (as well as on entire system simulations), we analyze performance of H.263 in an IS-95B system over slow fading channels at low bit rates. Peak signal-to-noise ratio (PSNR) values for various video test sequences demonstrate that important improvements of the video quality can be achieved by using feedback error control schemes. In addition, we investigate the effectiveness of the combined use of error correction and error resilience techniques for reliable video transmission in MC-CDMA systems.
Keywords :
Rayleigh channels; Viterbi decoding; code division multiple access; convolutional codes; data compression; error correction; feedback; radio links; radio receivers; spread spectrum communication; video coding; visual communication; DS-CDMA; H.263; IS-95B; MC-CDMA; RAKE receivers; SNR; convolutional codes; error correction; feedback error control; multicode CDMA systems; peak signal-to-noise ratio; slow fading Rayleigh channels; soft-decision Viterbi decoding; video compression; video quality; wireless video transmission; Analytical models; Bit rate; Error correction; Fading; Feedback; Multiaccess communication; Multicarrier code division multiple access; PSNR; Performance analysis; Testing;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.956635
