000000452 001__ 452
000000452 005__ 20190117192421.0
000000452 037__ $$aCONF
000000452 245__ $$aAdaptive Joint Playout Buffer and FEC Adjustment for Internet Telephony
000000452 269__ $$a2003
000000452 260__ $$c2003
000000452 336__ $$aConference Papers
000000452 520__ $$aWe develop a joint playout buffer and Forward Error Correction (FEC) adjustment scheme for Internet Telephony, which incorporates the impact of end-to-end delay on the perceived audio quality. We show that it provides better quality than the adjustment schemes for playout buffer and FEC that were previously published. This is important because of a threshold effect when the end-to-end delay of interactive audio is around 150 ms. We represent the perceived audio quality as a function of both the end-to-end delay and the distortion of the voice signal. We develop a joint rate/error/playout delay control algorithm that optimizes this measure of quality and is TCP-Friendly. It uses a channel model for both loss and delay. We validate our approach by simulation and show that (1) our scheme allows a source to increase its utility by avoiding an increase of the playout delay when it is not really necessary, (2) it performs better than direct combinations of existing algorithms in the cases where end-to-end delay is important and (3) adaptive delay aware FEC adjustment brings significant improvements only if it is coupled with an adaptive playout adjustment.
000000452 700__ $$0241639$$aBoutremans, Catherine$$g113130
000000452 700__ $$0241098$$aLe Boudec, Jean-Yves$$g105633
000000452 7112_ $$aIEEE INFOCOM`2003$$cSan-Francisco, CA
000000452 773__ $$tIEEE INFOCOM`2003
000000452 8564_ $$s223649$$uhttps://infoscience.epfl.ch/record/452/files/BoutremansL03.pdf$$zn/a
000000452 909CO $$ooai:infoscience.tind.io:452$$pconf$$pIC
000000452 909C0 $$0252614$$pLCA$$xUS00024
000000452 909C0 $$0252453$$pLCA2$$xU10427
000000452 937__ $$aLCA-CONF-2003-007
000000452 970__ $$a624/LCA
000000452 973__ $$aEPFL$$sPUBLISHED
000000452 980__ $$aCONF