| Li Zhen（李真）,Zhang Qin,Ren Hui,Liu Wenbo,Gao Xinyan.[J].高技术通讯(英文),2017,23(4):390~398 |
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| An efficient QoS enhancement mechanism of VoIP using erasure array codes |
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| DOI：10.3772/j.issn.1006-6748.2017.04.007 |
| 中文关键词: |
| 英文关键词: packet loss recovery, voicey over internet protocol ( VoIP ), quality of service ( QoS), array code |
| 基金项目: |
| Author Name | Affiliation | | Li Zhen（李真） | | | Zhang Qin | | | Ren Hui | | | Liu Wenbo | | | Gao Xinyan | |
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| 中文摘要: |
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| 英文摘要: |
| 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. |
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