论文标题
多用户MIMO非再生继电器网络的联合来源和继电器设计具有直接链接
Joint Source and Relay Design for Multi-user MIMO Non-regenerative Relay Networks with Direct Links
论文作者
论文摘要
在本文中，我们研究了多用户多输入多输入多输出〜（MU-MIMO）非再生继电器网络的联合源预言矩阵和继电器处理矩阵设计，在存在直接源源点启动〜（s-d）链接的情况下。我们考虑容量和于点误差〜（MSE）标准受到分布式功率约束的标准，这些标准是非convex的，显然没有简单的解决方案。因此，我们提出了基于点对点MIMO通道技术的最佳源预编码矩阵结构，以及在继电器节点修改的功率约束下进行的新的继电器处理矩阵结构，基于该结构，建立了一个嵌套的迭代迭代算法的联合优化源的源源预言和中继处理。我们表明，基于容量的最佳源预码矩阵与基于MSE的结构共享相同的结构。最佳继电器处理矩阵也是如此。仿真结果表明，所提出的算法的表现优于现有结果。
In this paper, we investigate joint source precoding matrices and relay processing matrix design for multi-user multiple-input multiple-output~(MU-MIMO) non-regenerative relay networks in the presence of the direct source-destination~(S-D) links. We consider both capacity and mean-squared error~(MSE) criterions subject to the distributed power constraints, which are nonconvex and apparently have no simple solutions. Therefore, we propose an optimal source precoding matrix structure based on the point-to-point MIMO channel technique, and a new relay processing matrix structure under the modified power constraint at relay node, based on which, a nested iterative algorithm of jointly optimizing sources precoding and relay processing is established. We show that the capacity based optimal source precoding matrices share the same structure with the MSE based ones. So does the optimal relay processing matrix. Simulation results demonstrate that the proposed algorithm outperforms the existing results.
