中国邮电高校学报(英文) ›› 2011, Vol. 18 ›› Issue (2): 72-77.doi: 10.1016/S1005-8885(10)60047-7

• Wireless • 上一篇    下一篇

Research on uplink coordinated transmission schemes in LTE-advanced systems

王亚峰1,魏国兴2,杨大成1,Wei Xiang3   

  1. 1. 北京邮电大学
    2.
    3. University of Southern Queensland
  • 收稿日期:2010-07-01 修回日期:2010-11-10 出版日期:2011-04-30 发布日期:2011-04-15
  • 通讯作者: 王亚峰 E-mail:wangyf@bupt.edu.cn
  • 基金资助:

    IMT-Advanced关键技术仿真平台;用于实时视频通信的无线中继网络的跨层联合优化

Research on uplink coordinated transmission schemes in LTE-advanced systems

  • Received:2010-07-01 Revised:2010-11-10 Online:2011-04-30 Published:2011-04-15
  • Contact: Ya-Feng WANG E-mail:wangyf@bupt.edu.cn

摘要:

The investigation of inter-cell interference mitigation techniques is a key area in wireless communications. Coordinated multiple points (CoMP) transmission/reception is a candidate technique for interference cancellation in 3GPP LTE-Advanced system. However, the coordination scheme in CoMP remains a key research problem to be solved, which will have a strong influence on the performance of CoMP. In this paper, a novel coordinated transmission scheme is proposed for the uplink LTE-Advanced system. In our scheme, several base transceiver stations (BTS) and users are selected as coordination partners which form a CoMP cluster. Joint processing is used at the receiver to mitigate interference. From the perspective of coordinated partner selection, our scheme can be divided into static and dynamic coordination which are both considered to fully exploit the throughput gain of CoMP. The proposed schemes are evaluated by system level simulation and compared with the conventional LTE system based upon single cell processing. Our simulation results demonstrate that the proposed schemes attain superior performance as opposed to the conventional system in terms of cell average and cell edge throughput.

关键词:

CoMP, joint processing, inter-cell interference, static coordination, dynamic coordination

Abstract:

The investigation of inter-cell interference mitigation techniques is a key area in wireless communications. Coordinated multiple points (CoMP) transmission/reception is a candidate technique for interference cancellation in 3GPP LTE-Advanced system. However, the coordination scheme in CoMP remains a key research problem to be solved, which will have a strong influence on the performance of CoMP. In this paper, a novel coordinated transmission scheme is proposed for the uplink LTE-Advanced system. In our scheme, several base transceiver stations (BTS) and users are selected as coordination partners which form a CoMP cluster. Joint processing is used at the receiver to mitigate interference. From the perspective of coordinated partner selection, our scheme can be divided into static and dynamic coordination which are both considered to fully exploit the throughput gain of CoMP. The proposed schemes are evaluated by system level simulation and compared with the conventional LTE system based upon single cell processing. Our simulation results demonstrate that the proposed schemes attain superior performance as opposed to the conventional system in terms of cell average and cell edge throughput.

Key words:

CoMP, joint processing, inter-cell interference, static coordination, dynamic coordination

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