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词汇 Macro diversity
分类 英语词汇 英语翻译词典
释义

Macro diversity

中文百科

宏分集 Macrodiversity

(重定向自Macro diversity)

在无线通信中,宏分集英语:macrodiversity)是指在不同的地理位置和方向上设置两个或以上的基站,这些基站同时与一个移动台进行通信,而接收机选择当中信号最好的基站接收。使用宏分集可以减少慢衰落对信号的影响。

以下是宏分集的例子:

  • CDMA,软切换.
  • UMTS,更软切换.
  • OFDM,基于单频网络(SFN)和动态单频网络(DSFN).
  • 802.16e,宏分集切换(MDHO).
英语百科

Macrodiversity 宏分集

(重定向自Macro diversity)
Typical multi-user macrodiversity uplink communication scenario with three base stations (BS) and two mobile stations (MS). All BSs are connected to a back-haul processing unit (BPU).[2]

In the field of wireless communication, macrodiversity is a kind of space diversity scheme using several receiver antennas and/or transmitter antennas for transferring the same signal. The distance between the transmitters is much longer than the wavelength, as opposed to microdiversity where the distance is in the order of or shorter than the wavelength.

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