中国邮电高校学报(英文)

中国邮电高校学报(英文) ›› 2011, Vol. 18 ›› Issue (4): 7-12.doi: 10.1016/S1005-8885(10)60076-3

• Wireless • 上一篇    下一篇

Improved resource allocation strategy in SU-CoMP network

陈鑫   

  1. 北京邮电大学
  • 收稿日期:2010-12-13 修回日期:2011-04-06 出版日期:2011-08-31 发布日期:2011-08-24
  • 通讯作者: 陈鑫 E-mail:jiuchen1986@bupt.edu.cn
  • 基金资助:

    This work was supported by the National Natural Science Foundation of China (61001116), State Emphasis Special Project 2009ZX03003-011-02, the Hi-Tech Research and Development Program of China (2009AA011506), and International Scientific and Technological Cooperation Program (2010DFA11060).

Improved resource allocation strategy in SU-CoMP network

Xin CHEN   

  • Received:2010-12-13 Revised:2011-04-06 Online:2011-08-31 Published:2011-08-24
  • Contact: Xin CHEN E-mail:jiuchen1986@bupt.edu.cn
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (61001116), State Emphasis Special Project 2009ZX03003-011-02, the Hi-Tech Research and Development Program of China (2009AA011506), and International Scientific and Technological Cooperation Program (2010DFA11060).

PDF

270

被引次数

25

摘要：

Coordinated multi-point transmission and reception (CoMP) for single user, named as SU-CoMP, is considered as an efficient approach to mitigate inter-cell interference in orthogonal frequency division multiple access (OFDMA) systems. Two prevalent approaches in SU-CoMP are coordinated scheduling (CS) and joint processing (JP). Although JP in SU-CoMP has been proved to achieve a great link performance improvement for the cell-edge user, efficient resource allocation (RA) on the system level is quite needed. However, so far limited work has been done considering JP, and most existing schemes achieved the improvement of cell-edge performance at cost of the cell-average performance degradation compared to the single cell RA. In this paper, a two-phase strategy is proposed for SU-CoMP networks. CS and JP are combined to improve both cell-edge and cell-average performance. Compared to the single cell RA, simulation results demonstrate that, the proposed strategy leads to both higher cell-average and cell-edge throughput.

关键词:

OFDMA system, SU-CoMP, RA, binary power allocation based multi-cell coordinated proportional fair scheduling (BP-CPF), sub-channels assignment for joint processing (JP-SA)

Abstract:

Coordinated multi-point transmission and reception (CoMP) for single user, named as SU-CoMP, is considered as an efficient approach to mitigate inter-cell interference in orthogonal frequency division multiple access (OFDMA) systems. Two prevalent approaches in SU-CoMP are coordinated scheduling (CS) and joint processing (JP). Although JP in SU-CoMP has been proved to achieve a great link performance improvement for the cell-edge user, efficient resource allocation (RA) on the system level is quite needed. However, so far limited work has been done considering JP, and most existing schemes achieved the improvement of cell-edge performance at cost of the cell-average performance degradation compared to the single cell RA. In this paper, a two-phase strategy is proposed for SU-CoMP networks. CS and JP are combined to improve both cell-edge and cell-average performance. Compared to the single cell RA, simulation results demonstrate that, the proposed strategy leads to both higher cell-average and cell-edge throughput.

Key words:

OFDMA system, SU-CoMP, RA, binary power allocation based multi-cell coordinated proportional fair scheduling (BP-CPF), sub-channels assignment for joint processing (JP-SA)

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