This paper investigates the performance of massive multiple-input multiple-output (MIMO)
cellular systems with pilot contamination. We derive a closed-form approximation of the area …

Despite substantial rate gains achieved by joint transmission from a massive amount of
geographically distributed antennas, the resulting computational cost and channel …

In this paper, we study the large-scale multi-user distributed antenna system (DAS) for hot-
spot coverage in the future 5G wireless network. Firstly, the multi-user system model of large …

Mutual coupling effect is an important electromagnetic interaction between the antennas,
which cannot be neglected for massive multiple-input multiple-output (MIMO) antenna …

For large-scale multiple-input multiple-output (MIMO) antenna systems, time division
duplexing (TDD) is preferred since the downlink precoding matrix can be obtained through …

In massive multiple-input multiple-output (MIMO) systems, idle users may passively overhear
the signal transmitted to the intended user, known as internal eavesdroppers. In order to …

Massive MIMO systems which utilize a large number of antennas in base stations focus on
fully exploiting spatial resources, improving the performance of spectral efficiency and …

In this paper, a clustered ad hoc network with virtual antenna array is investigated.
Considering the random distribution of the nodes in ad hoc networks, the nodes are …

We consider the downlink multi-user multi-cell massive MIMO systems, and our system
model accounts for channel estimation, pilot contamination, and uniformly random user …

本文研究分布式MIMO (Multiple-Input Multiple-Output) 系统圆形小区基站侧天线端口的位置
优化问题. 论文首先建立了包含小尺度Nakagami 衰落, 阴影衰落和路径损耗的复合衰落信道 …