| 基于IEEE 802.16e的VoIP公平调度算法 |
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| 引用本文： | 张红霞,戴居丰.基于IEEE 802.16e的VoIP公平调度算法[J].计算机工程,2009,35(20):94-96. |
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| 作者姓名： | 张红霞 戴居丰 |
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| 作者单位： | 天津大学电子信息工程学院,天津,300072 |
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| 摘 要： | 针对IEEE802.16e未规定具体的服务质量调度算法的问题,提出一种适用于IP电话（VoIP）业务的算法,该算法包括额外带宽再分配策略和补偿机制,根据业务流的优先级分配额外带宽,滞后的流根据它所丢失的服务被补偿。仿真结果表明,经过一段时间,业务流实际接收的服务与它在理想无差错系统中所得到的服务的差近似为0。
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| 关 键 词： | 无线城域网 IP电话 调度算法 补偿 公平性 |
| 修稿时间： | |
Fair Schedule Algorithm for VoIP Based on IEEE 802.16e |
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| ZHANG Hong-xia,DAI Ju-feng.Fair Schedule Algorithm for VoIP Based on IEEE 802.16e[J].Computer Engineering,2009,35(20):94-96. |
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| Authors: | ZHANG Hong-xia DAI Ju-feng |
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| Affiliation: | (School of Electrical Information and Engineering, Tianjin University, Tianjin 300072) |
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| Abstract: | An algorithm for Voice-over-Internet Protocol(VoIP) is proposed, because schedule algorithms guaranteeing Quality of Service(QoS) are not defined in IEEE 802.16e. The algorithm adopts extra-bandwidth allocation policy and compensation scheme. It allocates the extra-bandwidth according to the flow’s priority. The lagging flows are compensated according to services it has lost. Simulations results indicate that the difference in services between the flow received in actual system and in ideal system is almost equal to zero. |
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| Keywords: | Wireless Metropolitan Area Network(WMAN) Voice-over-Internet Protocol(VoIP) schedule algorithm compensation fairness |
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