中国邮电高校学报(英文) ›› 2011, Vol. 18 ›› Issue (2): 53-58.doi: 10.1016/S1005-8885(10)60044-1

• Wireless • 上一篇    下一篇

Zero-forcing dirty paper coding aided physical-layer network coding for MIMO two-way relaying channels with multiple users

龚鹏1,许杰2,邱玲3   

  1. 1.
    2. 中国科学技术大学电子工程与信息科学系个人通信与扩频实验室
    3. 中国科学技术大学
  • 收稿日期:2010-08-28 修回日期:2011-01-26 出版日期:2011-04-30 发布日期:2011-04-15
  • 通讯作者: 许杰 E-mail:suming@mail.ustc.edu.cn
  • 基金资助:

    国家科技重大专项课题;国家科技支撑计划课题“IMT-Advanced技术方案研究和关键技术研发”;国家科技重大专项课题“TD-LTE面向商用系统设备研发”;国家重点基础研究发展计划;中瑞第四代及超前无线通信技术战略合作项目:“无线调制编码、频率与传播技术”

Zero-forcing dirty paper coding aided physical-layer network coding for MIMO two-way relaying channels with multiple users

  • Received:2010-08-28 Revised:2011-01-26 Online:2011-04-30 Published:2011-04-15
  • Contact: Jie XU E-mail:suming@mail.ustc.edu.cn
  • Supported by:

    IMT-Advanced Novel Wireless Transmission Technology Program;IMT-Advanced Novel Wireless Transmission Technology Program;Chinese Important National Science and Technology Specific Project;National Basic Research Program of China (973 Program);Sino-Swedish Joint Research Project: Modulation and coding techniques, spectrum and propagation

摘要:

This article considers the two-way multiple-input multiple-output (MIMO) relaying channels with multiple users, in which multiple users are served simultaneously by the base station (BS) with the assistance of the relay. The transmission consists of only two phases, doubling the system throughout over traditional one-way half-duplex transmission. A zero-forcing dirty paper coding (ZFDPC) aided physical-layer network coding (PNC) scheme is proposed in this article and the achievable capacity of the ZFDPC aided PNC scheme is derived. Simulation results show that the proposed scheme outperforms the previous decode-and-forward (DF) and zero-forcing beamforming (ZFBF) aided PNC scheme due to more degrees of freedoms and the advantage of PNC. Moreover, we analyze the effect of the imperfect channel state information (CSI) from RS to users at BS side to show the robustness of the proposed ZFDPC aided PNC scheme.

关键词:

zero-forcing dirty paper coding, MIMO, physical-layer network coding, two-way relaying, multiuser diversity

Abstract:

This article considers the two-way multiple-input multiple-output (MIMO) relaying channels with multiple users, in which multiple users are served simultaneously by the base station (BS) with the assistance of the relay. The transmission consists of only two phases, doubling the system throughout over traditional one-way half-duplex transmission. A zero-forcing dirty paper coding (ZFDPC) aided physical-layer network coding (PNC) scheme is proposed in this article and the achievable capacity of the ZFDPC aided PNC scheme is derived. Simulation results show that the proposed scheme outperforms the previous decode-and-forward (DF) and zero-forcing beamforming (ZFBF) aided PNC scheme due to more degrees of freedoms and the advantage of PNC. Moreover, we analyze the effect of the imperfect channel state information (CSI) from RS to users at BS side to show the robustness of the proposed ZFDPC aided PNC scheme.

Key words:

zero-forcing dirty paper coding, MIMO, physical-layer network coding, two-way relaying, multiuser diversity

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