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massive mimo Fundamentals, Opportunities and Challenges
应用背景Massive multiuser MIMO (MISO):
◮ M ≫ K ≫ 1 (think 100 × 10 or 500 × 50)
◮ coherent, but simple, processing
◮ Potential to dramatically improve rate & reliability
◮ Potential to drastically scale down TX power
◮ Not only theory, at least one known testbed (64× ∼10)
关键技术
Massive MIMO Operation
Not enough resources for pilots & CSI feedback, so operate in TDD.
◮ On the uplink,
◮ acquire CSI from uplink pilots and/or blindly from data
◮ detect symbols
◮ M ≫ K ⇒ linear processing (MRC, ZF, MMSE) nearly optimal
◮ On the downlink,
◮ use CSI obtained on the uplink
◮ make necessary adjustments based on reciprocity calibration
◮ apply multiuser MIMO precoding
◮ simple precoders desirable (and very good!): MRT, ZF, MMSE, ...
◮ MRC/MRT operation
◮ intracell interference will appear as
- 2022-07-07 16:58:08下载
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3 链接 robotarm 顺利提高玻璃的模拟
模拟 3 连杆机器人手臂顺利举起酒杯。这种模拟发现角速度信号所需的时间历程
提高玻璃从地面到表高度在 45 度直线轨迹。生成机器人构建机器人
从输入和去! 开始模拟。
- 2022-03-06 18:19:43下载
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嵌入式构件库功能
应用背景几类和函数嵌入形式。拖动&;下拉列表框项目和TreeView的项目项目用文件填充菜单};关键技术类tddlistboxhelper {受保护的 ;TListBox *列表; ;tpoint起点;公众: ;布尔DragOver(TObject *磅); ;无效setlistbox(TObject *磅); ;无效MouseDown(TObject *源,int x,y); ;无效的拖放(TObject *源,int x,y);};/ / ---------------------------------------------------------------------------类的封装tswissknife:公共tcomponent{私人的:受保护的公众: ;__fastcall tswissknife(tcomponent *业主);__published: ;无效completeedit(Tedit *,AnsiString); ;布尔 ;finditem(字符串键,tmenuitem *源); ;布尔 ;DeleteItem(字符串键,tmenuitem *源); ;int ;populatelist(字符串键,tstrings *源,tstrings * dest,bool = true); ;upperfirstchar(AnsiString字符串S); ;布尔existslbitem(字符串键,TListBox *磅); ;无效sendstringkeys(char * pszchars); ;int loadfromfilemenuitems(tmenu * PP,字符串的文件名); ;int savetofilemenuitems(tmenu * PP,文件名字符串,整数开始);};
- 2022-06-17 08:19:36下载
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MD5算法的源代码
MD5算法的源代码
MD5算法的源代码
MD5算法的源代码-MD5 algorithm MD5 algorithm source code source code
- 2022-03-14 21:14:03下载
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另一个二维的FDTD仿真程序,仿真图像很好,很有帮助。
另一个二维的FDTD仿真程序,仿真图像很好,很有帮助。-Another two-dimensional FDTD simulation procedures, simulation images very good, very helpful.
- 2022-04-10 01:36:26下载
- 积分:1
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poj3352给一个图,求出需要加最少的边使去掉任一条边,图都连通.割点的应用...
poj3352给一个图,求出需要加最少的边使去掉任一条边,图都连通.割点的应用-poj3352 to a map, obtained at least the need to remove the edges so that any one side, map are connected. cut-point application
- 2023-07-27 11:35:03下载
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全元主高斯-约当法消去法求线形代数方程的解
全元主高斯-约当法消去法求线形代数方程的解-Quan-yuan main Gauss- Jordan method elimination method for linear algebraic equations
- 2022-02-06 10:25:58下载
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该程序是用来画微分系统时间序列图相图等相关的图形的,可以很好的对一个微分系统进行分析...
该程序是用来画微分系统时间序列图相图等相关的图形的,可以很好的对一个微分系统进行分析-The program is used to draw the time-differential phase diagram sequence diagram of the graphics, etc., can be a very good system for a differential analysis
- 2022-03-06 14:26:13下载
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在c语言里面显示汉字的程序!
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- 2023-03-14 16:30:03下载
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Demon RUF also an example. You enter a prime number, followed in the same direct
恶魔联阵也是一个例子。你输入一个素数,跟在下面生成的同一个目录中。Txt文件,其中有一个n*n的魔法矩阵
- 2022-10-31 00:10:02下载
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