论文标题
无单元的大型MIMO，带无线电条纹和顺序上行链路处理
Cell-Free Massive MIMO With Radio Stripes and Sequential Uplink Processing
论文作者
论文摘要
与传统的MIMO技术相比，无细胞的大规模MIMO（MMIMO）被认为是其高光谱效率和优越的空间多样性的下一代技术，其光谱效率高和高级空间多样性。主要原则是许多分布式访问点（AP）合作，同时为网络中的所有用户提供服务而无需创建单元格边界。本文考虑了使用无线电条纹网络体系结构的无单元MMIMO系统的上行链路。我们提出了一种新型的顺序处理算法，其中每种都有归一化的线性最小均方根误差（N-lmmse）组合。该算法可以在无细胞的MMO中进行干扰抑制，同时保持成本和前豪尔的要求较低。计算和分析所提出的算法的光谱效率。我们得出的结论是，它在低前豪尔的需求和高光谱效率之间提供了一个有吸引力的权衡。
Cell-free Massive MIMO (mMIMO) is envisaged to be a next-generation technology beyond 5G with its high spectral efficiency and superior spatial diversity as compared to that of conventional MIMO technology. The main principle is that many distributed access points (APs) cooperate to simultaneously serve all the users within the network without creating cell boundaries. This paper considers the uplink of a cell-free mMIMO system utilizing the radio stripe network architecture. We propose a novel sequential processing algorithm with normalized linear minimum mean square error (N-LMMSE) combining at every. This algorithm enables interference suppression in cell-free MMO while keeping the cost and front-haul requirements low. The spectral efficiency of the proposed algorithm is computed and analyzed. We conclude that it provides an attractive trade-off between low front-haul requirements and high spectral efficiency.
