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基于业务认知的多用户带宽分配方法 被引量：3

Multi-user bandwidth allocation method based on traffic cognition
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摘要 无线局域网的MAC协议难以兼顾多用户差别的业务需求和网络吞吐量的有效性。建立具有超帧结构的带宽分配模型和具有惩罚函数的优化目标,计算满足单用户QoS需求的最小带宽,进而提出基于业务认知的多用户带宽分配算法(TCBAA)。该算法优先满足用户QoS要求,其次最大化系统的吞吐量。理论和仿真实验显示:相比于固定分配机制和最大吞吐量分配机制,TCBAA能够在有限带宽下满足更多用户的QoS需求。 Wireless LAN MAC protocols can hardly make a balance between diverse traffic requirements of multi-users and network throughput efficiency. A bandwidth allocation model with super-frames and an optimization goal with a pen- alty function was established. After calculating the minimum bandwidth satisfying a single user＇s QoS requirement, traffic cognition bandwidth allocation algorithm （TCBAA） for multi-users was proposed. Analysis and simulations experiment show that TCBAA can satisfy more users＇ QoS requirements under limited bandwidth resources, compared with fixed bandwidth allocation and maximum throughput allocation.
作者 张耀东 王钺 霍金海 袁坚
机构地区 清华大学电子工程系
出处 《通信学报》 EI CSCD 北大核心 2013年第2期109-116,共8页 Journal on Communications
关键词 MAC调度 业务认知 服务质量 带宽分配 MAC schedule traffic cognition QoS bandwidth allocation
分类号 TP393.1 [自动化与计算机技术—计算机应用技术]
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同被引文献29

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引证文献3

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通信学报
2013年 第2期

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