Title :
Optimal rate adaptation for VoIP over wireless tandem links
Author :
Khalifeh, Ala ; Yousefi´zadeh, Homayoun
Author_Institution :
Dept. of EECS, Univ. of California, Irvine, CA, USA
fDate :
Oct. 31 2010-Nov. 3 2010
Abstract :
We present an optimization framework for transmitting VoIP packets generated by a multi-rate voice encoder over error-prone wireless links. Our proposed framework aims at identifying the optimal joint source channel coding rates of each voice frame based on the frame perceptual importance such that the quality of the received speech signal is maximized. Simulation results show that our proposed framework outperforms its literature counterparts and has a low computational complexity.
Keywords :
Internet telephony; channel coding; communication complexity; optimisation; radio links; source coding; VoIP; computational complexity; error-prone wireless link; multirate voice encoder; optimal joint source channel coding rates; optimal rate adaptation; optimization framework; received speech signal quality maximisation; wireless tandem link; Channel coding; Equations; Mathematical model; Optimization; Speech; Wireless communication;
Conference_Titel :
MILITARY COMMUNICATIONS CONFERENCE, 2010 - MILCOM 2010
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4244-8178-1
DOI :
10.1109/MILCOM.2010.5680314
