虫虫首页| 资源下载| 资源专辑| 精品软件
登录| 注册

Diversity

  • Multiple-Input+Multiple-Output+Channel+Models

    Many wireless communications channels consist of multiple signal paths from the transmitter to receiver. This multiplicity of paths leads to a phenomenon known as multipath fading. The multiple paths are caused by the presence of objects in the physical environment that, through the mechanisms of propagation, alter the path of radiated energy. These objects are referred to as scatterers. In the past, researchers often looked at ways to mitigate multipath scattering, such as in Diversity systems. Multiple-input, multiple-output (MIMO) systems, on the other hand, use multipath Diversity to their advantage; a MIMO system has the ability to translate increased spatial Diversity into increased channel capacity. 

    标签: Multiple-Output Multiple-Input Channel Models

    上传时间: 2020-05-31

    上传用户:shancjb

  • Propagation Channel Characterization

    The investigation of the propagation channel is becoming more and more important in mod- ern wireless communication. The demand for spectral efficiency motivates exploitation of all channels that can possibly be used for communications. Nowadays, a common trend for designing physical layer algorithms is to adapt the transceiving strategy, either by maximizing the Diversity gains or by utilizing the coherence of the channels to improve the signal-to-noise power ratio.

    标签: Characterization Propagation Channel

    上传时间: 2020-05-31

    上传用户:shancjb

  • Understanding_the_Basics_of_MIMO

    An acronym for Multiple-In, Multiple-Out, MIMO communication sends the same data as several signals simultaneously through multiple antennas, while still utilizing a single radio channel. This is a form of antenna Diversity, which uses multiple antennas to improve signal quality and strength of an RF link. The data is split into multiple data streams at the transmission point and recombined on the receive side by another MIMO radio configured with the same number of antennas. The receiver is designed to take into account the slight time difference between receptions of each signal, any additional noise or interference, and even lost signals.

    标签: Understanding_the_Basics_of_MIMO

    上传时间: 2020-06-01

    上传用户:shancjb