MU-MIMO系统中联合功率分配和预编码设计的优化设计方案
Joint Optimal Power Allocation and Pre-Coding Design in MU-MIMO Network
摘要: 无线自组织网络具有布置灵活，不需要固定设备支持，可由其他用户节点代为进行数据转发的优势，在有紧急通信需求的恶劣环境下得到了广泛的应用，本文设计了一种包含中继节点的多用户多输入多输出(MU-MIMO)无线自组织网络，同时，利用半正定松弛(SDR)算法，研究了与之相应的最优化预编码方案。此外，考虑到实现最优预编码算法的高度复杂性，通过奇异值分解和块对角化，本文设计了两种次优化预编码方案作为最优方案的参照。仿真结果证明，本文设计的预编码方案能显著提高系统性能。
Abstract: The wireless ad hoc network has the advantages of flexible layout, non-essential for fixed equip-ment support and the information can be forwarded by other user nodes. It has been widely used in the harsh environment with emergency communication demand. This paper designs a MU-MIMO wireless ad-hoc network under the opportunistic relay scene. Then, the optimal pre-coding scheme is studied by using the semi-definite relaxation (SDR) algorithm. In addition, considering the high complexity of implementing the optimal solution, two sub-optimal pre-coding programs are also discussed, denoted as singular value decomposition and block diagonalization. Finally, the simulation results show that the optimal pre-coding scheme designed in this paper can improve the performance of the system.
文章引用：胡志明, 周笑笑. MU-MIMO系统中联合功率分配和预编码设计的优化设计方案[J]. 无线通信, 2018, 8(4): 198-208. https://doi.org/10.12677/HJWC.2018.84023

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