Acta Metallurgica Sinica(English letters) ›› 2012, Vol. 19 ›› Issue (1): 11-17.doi: 10.1016/S1005-8885(11)60221-5

• Wireless • 上一篇    下一篇

Interference-aware uplink transmission schemes for multicell MIMO system

李亮1,邱玲1,卫国2   

  1. 1. 中国科学技术大学
  • 收稿日期:2011-06-21 修回日期:2011-09-26 出版日期:2012-02-28 发布日期:2012-02-21
  • 通讯作者: 邱玲 E-mail:lqiu@ustc.edu.cn
  • 基金资助:

    This work was supported by Chinese Important National Science and Technology Specific Project (2010ZX03002-003-01).

Interference-aware uplink transmission schemes for multicell MIMO system

  1. Wireless Information Network Laboratory, University of Science and Technology of China, Hefei 230027, China
  • Received:2011-06-21 Revised:2011-09-26 Online:2012-02-28 Published:2012-02-21
  • Contact: QIU Ling E-mail:lqiu@ustc.edu.cn
  • Supported by:

    This work was supported by Chinese Important National Science and Technology Specific Project (2010ZX03002-003-01).

摘要:

In this paper we consider interference-aware uplink transmission schemes for multicell multiple-input multiple-output (MIMO) system. Unlike conventional transmission schemes without considering the interference probably caused to other cell, we jointly optimize the transceiver beamforming vectors to maximize the desired signals while removing the intercell interference. Specifically, for a two-cell system where each transmitter is equipped with two antennas, we derive the closed-form expression for the transmit scheme called coordinated beamforming (CBF) via generalized-eigen analysis. Moreover, when asymmetric interference is considered, we give a balancing beamforming (BBF) scheme where the interfering transmitter is to strike a compromise between maximizing the desired signal and minimizing the generated interference. Simulation results show that both schemes perform better than conventional schemes under different scenarios

关键词:

interference-aware, MIMO system, coordinated beamforming, interference alignment

Abstract:

In this paper we consider interference-aware uplink transmission schemes for multicell multiple-input multiple-output (MIMO) system. Unlike conventional transmission schemes without considering the interference probably caused to other cell, we jointly optimize the transceiver beamforming vectors to maximize the desired signals while removing the intercell interference. Specifically, for a two-cell system where each transmitter is equipped with two antennas, we derive the closed-form expression for the transmit scheme called coordinated beamforming (CBF) via generalized-eigen analysis. Moreover, when asymmetric interference is considered, we give a balancing beamforming (BBF) scheme where the interfering transmitter is to strike a compromise between maximizing the desired signal and minimizing the generated interference. Simulation results show that both schemes perform better than conventional schemes under different scenarios

Key words:

interference-aware, MIMO system, coordinated beamforming, interference alignment

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