点击次数：

论文类型：期刊论文

发表时间：2017-12-01

发表刊物：High Technology Letters

收录刊物：EI、Scopus

卷号：23

期号：4

页面范围：390-398

ISSN号：10066748

摘要：In order to solve the problem of losing voice packets in voice over internet protocol (VoIP), a kind of lost packets double recovery algorithm is proposed. The algorithm is based on erasure coding technique which comes from highly available data storage systems. An efficient coding scheme with higher tolerance based on STAR and Reed-Solomon (RS) erasure code is described. An efficient method is also provided which could transform the voice data packets of one dimensional bit stream into two dimensional array according to given window size. If the lost rate has increased beyond the error correction capability, packet-loss concealment will be adopted. Under various conditions of packet-loss simulation during the experiments, the algorithm has proved its better performance on MOS rating and coding rate. Copyright ? by HIGH TECHNOLOGY LETTERS PRESS.