Title :
On index assignment and the design of multiple description quantizers
Author :
Yahampath, Pradeepa
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Manitoba, Winnipeg, Man., Canada
Abstract :
The practical design of multiple description quantizers for diversity-based communication is investigated. A simulated annealing based method is proposed for obtaining the optimal index assignment for a multiple-description vector quantizer. This method can be used to design quantizers having an arbitrary number of descriptions with equal or unequal transmission rates. According to the simulation results, the proposed method yields multiple-description quantizers with performance comparable with, or better than, previously reported results.
Keywords :
diversity reception; simulated annealing; source coding; vector quantisation; diversity-based communication; index assignment; multiple description quantizer design; multiple description source coding; multiple-description vector quantizer; simulated annealing; Algorithm design and analysis; Communication switching; Computational modeling; Decoding; Design optimization; Fading; Gaussian processes; Simulated annealing; Source coding; Vector quantization;
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.2004.1326897
