电子学报2011，Vol.39Issue(4)：803-811,9.
一种移动终端多天线方向图重构快速选择算法与基于滑动时间窗的加速实现
A Fast Multiple Antenna Reconfigurable Pattern Selection Algorithm and Accelerated Realization Based on Sliding Time Window
摘要
Abstract
In a wireless multiple-input multiple-output (MIMO) system,transmit antenna selection is an effective means of achieving good performance with low complexity. However, the space for the antenna array is usually limited on wireless terminal.Hence, antenna' s configurable pattern selection is considered to save space, using spatial multiplexing with linear receivers, and equal power and equal rate allocation to reduce feedback overhead. Under these constraints, a statistical adaptive transmit antenna pattern selection is studied to improve the capacity of spatially correlated MIMO fading channels. Then, we propose a fast transmit antenna pattem subset selection criterion based on maximizing this average lower-bound capacity. More over, in order to catch up the channel variant in low speed moving environment in a real transceiver, we also propose a refreshed gradient estimation method based on sliding time window. And the measured result indicates that the method reduces the searching time of reconfigurable patterns selection.关键词
天线选择/方向图重构/滑动时间窗/MMOKey words
antenna selection/reconfigurable patterns/sliding time window/MIMO分类
信息技术与安全科学引用本文复制引用
王俊,颜罡..一种移动终端多天线方向图重构快速选择算法与基于滑动时间窗的加速实现[J].电子学报,2011,39(4):803-811,9.基金项目
上海市启明星项目 （）
上海市学科带头人项目 （）
国家科技重大专项 （）
