通信学报 ›› 2013, Vol. 34 ›› Issue (2): 109-116.doi: 10.3969/j.issn.1000-436x.2013.02.013

• 学术论文 • 上一篇    下一篇

基于业务认知的多用户带宽分配方法

张耀东,王钺,霍金海,袁坚   

  1. 清华大学 电子工程系,北京 100084
  • 出版日期:2013-02-25 发布日期:2017-07-17

Multi-user bandwidth allocation method based on traffic cognition

Yao-dong ZHANG,Yue WANG,Jin-hai HUO,Jian YUAN   

  1. Department of Electronic Engineering,Tsinghua University,Beijing 100084,China
  • Online:2013-02-25 Published:2017-07-17

摘要:

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。

关键词: MAC调度, 业务认知, 服务质量, 带宽分配

Abstract:

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 penalty function was established.After calculating the m nimum 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.

Key words: MAC schedule, traffic cognition, QoS, bandwidth allocation

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