Performance analysis of the network communication based on AMR speech coding by using NS
Most of the VoIP systems were based on the speech codec with a fixed rate,which maked packet-loss serious,especially for continuous packet-loss.The degradation for the speech quality would be caused by the kind of packet-loss.A network communication system for preventing packet-loss was given.The pe...
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| Main Authors: | , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
2006-01-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/74660765/ |
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| Summary: | Most of the VoIP systems were based on the speech codec with a fixed rate,which maked packet-loss serious,especially for continuous packet-loss.The degradation for the speech quality would be caused by the kind of packet-loss.A network communication system for preventing packet-loss was given.The performance of the system was analyzed by using advanced NS.The simulation results show that the proposed system outperforms traditional IP system over the packet-loss,average delay and subjective listening quality. |
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| ISSN: | 1000-436X |