Acta Metallurgica Sinica(English letters)

• Wireless • 上一篇    下一篇

Improved proportional fair dynamic subcarrier allocation with frugality constraint for SC-FDMA system

李一兵1,张旭2,叶方3,高振国3   

  1. 1. 哈尔滨工程大学 信息与通信工程学院
    2. 哈尔滨工程大学
    3.
  • 收稿日期:2012-07-22 修回日期:2012-11-30 出版日期:2013-04-30 发布日期:2013-04-26
  • 通讯作者: 张旭 E-mail:zhangxu6931@yahoo.com.cn
  • 基金资助:

    This work was supported by the Fundamental Research Funds for the Central Universities of China (HEUCF130807), the Heilongjiang Province Natural Science Foundation for the Youth (QC2012C070/F010106), and the National Natural Science Foundation of China (61073183).

Improved proportional fair dynamic subcarrier allocation with frugality constraint for SC-FDMA system

  • Received:2012-07-22 Revised:2012-11-30 Online:2013-04-30 Published:2013-04-26
  • Contact: Xu ZHANG E-mail:zhangxu6931@yahoo.com.cn
  • Supported by:

    This work was supported by the Fundamental Research Funds for the Central Universities of China (HEUCF130807), the Heilongjiang Province Natural Science Foundation for the Youth (QC2012C070/F010106), and the National Natural Science Foundation of China (61073183).

摘要:

With the objective of taking full use of channel resource, we proposed two utility based dynamic subcarrier allocation (DSA) algorithms for the single carrier frequency division multiple access (SC-FDMA) system, which are the proportional fair frugality constrained (PF-FC) algorithm and the weighted proportional fair frugality constrained (WPF-FC) algorithm. The two proposed algorithms are designed under the frugality constraint (FC) control consideration so as to avoid service rate waste and improve the spectrum efficiency. Moreover, the queuing buffer model in this paper is established on a finite size structure rather than the traditional infinite queuing manner, which is more consistent with the practical transmission condition. Simulation results indicate that the two proposed algorithms can both achieve significantly better system rate-sum capacity and quality of service (QoS) performance than their primary algorithms, and are more applicable for the heterogeneous traffic.

关键词:

SC-FDMA, DSA, QoS, FC, proportional fair (PF) algorithm, weighted proportional fair (WPF) algorithm

Abstract:

With the objective of taking full use of channel resource, we proposed two utility based dynamic subcarrier allocation (DSA) algorithms for the single carrier frequency division multiple access (SC-FDMA) system, which are the proportional fair frugality constrained (PF-FC) algorithm and the weighted proportional fair frugality constrained (WPF-FC) algorithm. The two proposed algorithms are designed under the frugality constraint (FC) control consideration so as to avoid service rate waste and improve the spectrum efficiency. Moreover, the queuing buffer model in this paper is established on a finite size structure rather than the traditional infinite queuing manner, which is more consistent with the practical transmission condition. Simulation results indicate that the two proposed algorithms can both achieve significantly better system rate-sum capacity and quality of service (QoS) performance than their primary algorithms, and are more applicable for the heterogeneous traffic.

Key words:

SC-FDMA, DSA, QoS, FC, proportional fair (PF) algorithm, weighted proportional fair (WPF) algorithm

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