The Effect of Transmission Error on Audio Quality for Simple FEC Schemes

Audio quality in lossy networks for media‐specific forward error correction schemes

“…An aim in this article is to obtain analytical results of the probabilities P .Y n D 0/ and P .Y n D 0, Y nC D 1/, which are necessary to evaluate the performance of the FEC schemes. Indeed, these are easily obtained in the case where D 1 [17].…”

“…Inoie and Ishizaka also studied the efficiency of the FEC scheme discussed in . The model in , they assumed that some of packets were lost due to noise or interference in the transmission as well as buffer overflow in a router. This assumption may be plausible if the network includes some wireless devices (e.g., wireless access points and mobile computers).…”

“…Finally, under their assumption, the FEC scheme improves the utility function for audio quality considered by . In , they, however, discussed only the case where the value of the offset was one.…”

“…In this paper, we therefore study the FEC scheme where the value of the offset parameter is arbitrary, which is an extension of . We deal with a simple M/M/1/ K queueing model and consider the following two FEC schemes: one was the scheme that fixes the volume of original data and varies the volume of redundant data in a packet (called Fixed/Variable scheme ), and the other is the scheme that varies the volume of original data and fixes the volume of the whole data in a packet (called Variable/Fixed scheme ).…”