spatial division multiple access造句

hc-sdma high capacity-spatial division multiple access hc-sdma
大容量-空分多路存取
previous research on the ad hoc network almost aim at omnidirectional antenna of all receivers and transmitters, or as a default attribution . in my thesis, firstly i describe the advantages of the directional antenna at many aspects which including spatial division multiple access ( sdma ), the antenna gain, anti-interference etc . and analyze the possibility about the directional antenna used for the ad hoc networks, secondly i study its multiple access and routine protocols using the directional antenna . and compare the protocol difference and network " performance between omnidirectional and directional antenna in particular environment
首先阐述了定向天线在网络空分复用(sdma)、天线增益、抗干扰等方面的的优势，分析了定向天线用于移动自组网的可行性，接着重点研究了基于定向天线的多址接入协议和路由协议，分析了与全向天线在组网和协议实现中的异同点和优缺点，并对特定的环境下的网络性能作了对比。
It's difficult to find spatial division multiple access in a sentence. 用spatial division multiple access造句挺难的