Research and application of smart antenna in MIMO systemMIMO中智能天线技术的应用研究MIMO智能天线波束赋形将智能天线赋形技术引入MIMO系统.根据赋形技术和MIMO的分集复用技术的特点,分析比较了这2种策略的适宜运用条件.通过仿真对不同环境条件下MIMO系统中采用分集复用技术和智能天线赋形技术的系统容量进行比较,指出...
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Where is MU-MIMO best suited? MU-MIMO is particularly well suited to bring-your-own-device (BYOD) situations where devices such as smartphones and tablets have only a single antenna. Another instance is in a large crowd where people are all using their devices to connect to the same bandwi...
For a good overview of smart an-tennas see [3].MIMO Systems employ antenna arrays on thesender as well as on the receiver side. They can in-crease the capacity of mobile communication systemsby using spatial multiplexing of signals. If the numberof antennas is the same on the sender and...
Figure 2. Radio technology definitions are based on the type of channel being used. 2.2 Concepts of operation The IEEE 802.11n task group has turned to a more advanced radio system, called Multi- Input Multi-Output, or MIMO. It is a technique that allows us to send data streams in parall...
Multiple-input multiple-output (MIMO) technology constitutes a breakthrough in the design of wireless communications systems, and is already at the core of several wireless standards. Exploiting multipath scattering, MIMO techniques deliver significant performance enhancements in terms of data transmission ...
By using multi-antenna sensor node (MASN) as the cluster head (CH), we import multi-input-multi-output (MIMO) and single-input-multi-output (SIMO) communication modes into WSN. In this network scenario, tremendous energy saving is possible when transmission range is larger than a given ...
This report describes the development of a smart antenna test-bed. The test-bed is configured as a receiver and can process the signals of a maximum of four antennas. The receiver structure is based on the heterodyne receiver concept. Th... T Kluwer - 《Technology Foundation Stw》 被引量:...
Wireless Communication Technology has developed many folds over the past few years. One of the most reliable techniques to enhance the data rates is called Multiple Input Multiple Output (MIMO) wherein severa gathering mechanical assemblies are used each on the transmitter and the authority. various...
这种技术叫做“波束转换技术(swithched beam technology)”,而这种智能天线也叫做“波束转换智能天线”。(2)(2)自适应智能天线自适应智能天线 它应用了自适应空间数字处理技术测量不同波束的信号强度,能动态地改变每个扇区的波束宽度和方向角,以适应话务负荷分布状况的改变。自适应智能天线系统具有比波束转换智能天线更...