中国邮电高校学报(英文) ›› 2010, Vol. 17 ›› Issue (1): 37-43.doi: 10.1016/S1005-8885(09)60421-0

• Wireless • 上一篇    下一篇

Performance of power control in inter-cell
interference coordination for frequency reuse

章辉,许晓东,李静雅,陶小峰,许方敏   

  1. 1. Wireless Technology Innovation Institute, Beijing University of Posts and Telecommunications, Beijing 100876, China
    2. Key Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China
    3. Chalmers University of Technology, Sweden
  • 收稿日期:2009-01-04 修回日期:1900-01-01 出版日期:2010-02-28
  • 通讯作者: 章辉

Performance of power control in inter-cell
interference coordination for frequency reuse

ZHANG Hui, XU Xiao-dong, LI Jing-ya, TAO Xiao-feng, Tommy Svensson, Carmen Botella   

  1. 1. Wireless Technology Innovation Institute, Beijing University of Posts and Telecommunications, Beijing 100876, China
    2. Key Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China
    3. Chalmers University of Technology, Sweden
  • Received:2009-01-04 Revised:1900-01-01 Online:2010-02-28
  • Contact: ZHANG Hui

摘要:

To mitigate inter-cell interference in 3G evolution systems, a novel inter-cell interference coordination scheme called soft fractional frequency reuse is proposed in this article, which enables to improve the data rate in cell-edge. On this basis, an inter-cell power control is presented for the inter-cell interference coordination, and the inter-cell balanced signal to interference plus noise ratio (SINR) among users is established for power allocation, which enables mitigation of inter-cell interference. Especially, the power control is based on a novel exponential kernel equation at higher convergence speed than the traditional arithmetic kernel equations. Numerical results show that the proposed scheme improves the throughput and reduces the blocking rate compared to the existing power control algorithms.

关键词:

3G;evolution,;inter-cell;interference,;power;control,;power;allocation,;exponential;iteration

Abstract:

To mitigate inter-cell interference in 3G evolution systems, a novel inter-cell interference coordination scheme called soft fractional frequency reuse is proposed in this article, which enables to improve the data rate in cell-edge. On this basis, an inter-cell power control is presented for the inter-cell interference coordination, and the inter-cell balanced signal to interference plus noise ratio (SINR) among users is established for power allocation, which enables mitigation of inter-cell interference. Especially, the power control is based on a novel exponential kernel equation at higher convergence speed than the traditional arithmetic kernel equations. Numerical results show that the proposed scheme improves the throughput and reduces the blocking rate compared to the existing power control algorithms.

Key words:

3G evolution;inter-cell interference;power control;power allocation;exponential iteration