Title :
Optimal resource allocation for video transmission over DS-CDMA channels with multirate detection
Author :
Srinivasan, Deepika ; Kondi, Lisimachos P.
Author_Institution :
Dept. of Electr. Eng., State Univ. of New York, Buffalo, NY, USA
Abstract :
In this paper, we consider the transmission of video over multirate wireless direct-sequence code-division multiple access (DS-CDMA) channels. The performance of transmitting scalable video over a multipath Rayleigh fading channel via a combination of multi-code multirate CDMA and variable sequence length multirate CDMA channel system is considered. At the other end, the signal is collected by an antenna array front and despreading is done using adaptive space-time auxiliary-vector (AV) filters. AV filter configurations suitable for multirate detection are designed and the rate-distortion optimization is carried out for each configuration. The experimental results show a comparison of the performance of such multirate DS-CDMA systems for wireless video transmission.
Keywords :
Rayleigh channels; adaptive filters; code division multiple access; multimedia communication; multipath channels; rate distortion theory; resource allocation; space-time adaptive processing; spread spectrum communication; AV filter; DS-CDMA channels; adaptive space-time auxiliary-vector filters; antenna array front; despreading; direct-sequence code-division multiple access channels; multicode multirate CDMA; multipath Rayleigh fading channels; multirate detection; rate-distortion optimization; resource allocation optimization; scalable video; variable sequence length multirate CDMA; wireless video transmission; Adaptive arrays; Adaptive filters; Antenna arrays; Bit rate; Design optimization; Fading; Multiaccess communication; Rate-distortion; Resource management; Signal design;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on
Print_ISBN :
0-7803-8484-9
DOI :
10.1109/ICASSP.2004.1327273
