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

作　　者：GONG Peng XU Jie QIU Ling 

机构地区：[1]Personal Communication Network & Spread Spectrum Laboratory, University of Science and Technology of China, Hefei 230027, China

出　　处：《The Journal of China Universities of Posts and Telecommunications》2011年第2期53-58,共6页中国邮电高校学报（英文版）

基　　金：supported by IMT-Advanced Novel Wireless Transmission Technology Program (2008ZX03003-004,2008BAH30B09);Chinese Important National Science and Technology Specific Project (2010ZX03002-003);the National Basic Research Program of China (2007CB310602);International Science and Technology Cooperation Program (2008DFA12160)

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.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 

分 类 号：TN929.5[电子电信—通信与信息系统] TP311[电子电信—信息与通信工程]