Title :
Low bit rate video transmission in a Rayleigh fading channel
Author :
Akbulut, Ahmet ; Zorba, H. Orkun ; Demir, Murat ; Tugac, Serdar ; Yilmaz, Mumtaz
Author_Institution :
Dept. of Electron. Eng., Ankara Univ., Turkey
Abstract :
We propose a low bit rate video transmission scheme in a Rayleigh fading channel. Source coding in this scheme is accomplished by subband coding. To overcome the bad effects of the channel we use Reed Solomon codes together with direct sequence spread spectrum. While compressing the video signal, different image resolutions are achieved by subband coding. These images have different priority levels against channel distortion according to their information content. Consequently reasonable image quality is obtained even in adverse channel conditions
Keywords :
Rayleigh channels; Reed-Solomon codes; channel coding; data compression; image resolution; image sequences; source coding; spread spectrum communication; transform coding; video coding; visual communication; wavelet transforms; DPCM; DS-SS; PCM; QPSK; Rayleigh fading channel; Reed Solomon codes; channel coding; channel distortion; differential pulse code modulation; direct sequence spread spectrum; image quality; image resolution; information content; low bit rate video transmission; motion estimation/compensation; pulse code modulation; quadrature phase shift keying; runlength coding; source coding; subband coding; video signal compression; video test sequence; wavelet transform; Bit rate; Channel coding; Fading; Modulation coding; Phase change materials; Pulse modulation; Quadrature phase shift keying; Source coding; Spread spectrum communication; Video compression;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd
Conference_Location :
Rhodes
Print_ISBN :
0-7803-6728-6
DOI :
10.1109/VETECS.2001.944614
