High Rate/Low Complexity Space-Time Block Codes for 2x2 Reconfigurable MIMO Systems
High Rate/Low Complexity Space-Time Block Codes for 2x2 Reconfigurable MIMO Systems
复制标题
DOI：
--
复制
发表时间：
2015-05
期刊：
影响因子：
--
通讯作者：
V. Vakilian;H. Mehrpouyan;Y. Hua;H. Jafarkhani
中科院分区：
文献类型：
--
作者：
V. Vakilian;H. Mehrpouyan;Y. Hua;H. Jafarkhani
作者：Vakilian，维达; Mehrpouyan，哈尼; Hua，Yingbo; Jafarkhani，Hamid|摘要：在本文中，我们提出了一种全速率全分集空时分组码（STBC）的2x2可重构多输入多输出（MIMO）系统，需要一个低复杂度的最大似然（ML）检测器。我们考虑配备有线性天线阵列的发射机，其中每个天线元件可以独立地配置为创建朝向选定方向的定向辐射图案。发射天线的这一特性使我们能够提高系统的数据速率，同时降低接收机的计算复杂度。所提出的STBC在2x2 MIMO系统中实现了2的编码速率，并且可以经由具有阶数M的复杂度的ML检测器来解码，其中M是所发送的符号星座的基数。我们的模拟表明，所提出的代码相比，现有的STBC在文献中的效率。
Author(s): Vakilian, Vida; Mehrpouyan, Hani; Hua, Yingbo; Jafarkhani, Hamid | Abstract: In this paper, we propose a full-rate full-diversity space-time block code (STBC) for 2x2 reconfigurable multiple-input multiple-output (MIMO) systems that require a low complexity maximum likelihood (ML) detector. We consider a transmitter equipped with a linear antenna array where each antenna element can be independently configured to create a directive radiation pattern toward a selected direction. This property of transmit antennas allow us to increase the data rate of the system, while reducing the computational complexity of the receiver. The proposed STBC achieves a coding rate of two in a 2x2 MIMO system and can be decoded via an ML detector with a complexity of order M, where M is the cardinality of the transmitted symbol constellation. Our simulations demonstrate the efficiency of the proposed code compared to existing STBCs in the literature.