Retrospective Network Coding Alignment Over <i>K</i>-User MIMO Y Channel

作     者：Li, Qingyun Li, Hongxiang Wu, Gang Li, Shaoqian 

作者机构：Univ Elect Sci & Technol China Natl Key Lab Sci & Technol Commun Chengdu 611731 Peoples R China Univ Louisville Dept Elect & Comp Engn Louisville KY 40292 USA 

出 版 物：《IEEE COMMUNICATIONS LETTERS》 (IEEE Commun Lett)

年 卷 期：2016年第20卷第3期

页      面：502-505页

核心收录：

学科分类：0810[工学-信息与通信工程] 0808[工学-电气工程] 08[工学] 

基　　金：Regional Cooperation Project of MOST of China [2014DFT10290] U.S. National Science Foundation [ECCS-1509047] Directorate For Engineering Div Of Electrical, Commun & Cyber Sys Funding Source: National Science Foundation 

主　　题：Degrees of freedom channel state information network coding interference alignment 

摘      要：Under the assumption that each node has delayed channel state information at transmitter (D-CSIT), this letter studies the achievable degrees of freedom (DOF) for K-user multiple-input-multiple-output (MIMO) Y channel in frequency division duplex (FDD) systems, where each user exchanges messages with other K - 1 users simultaneously via an intermediate relay. We propose a new retrospective network coding alignment (RNCA) scheme and derive the closed-form expression for achievable DOF.