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应用背景This paper considers the problem of interference mitigation in multi-cell multi-antenna time division duplex (TDD) wireless systems for downlink transmission. An efficient way to obtain channel state information (CSI) at the base station is by using uplink pilots and reciprocity of the downlink channel. At the same time, it has been shown that pilots from different cells contaminate each other, resulting in corruption of precoding matrices used by base stations, and high inter-cell interference. This paper studies the effects of shifting the location of pilots in time frames used in neighboring cells, and its effectiveness in obtaining better channel estimates, and, thereby, inter-cell interference reduction.关键技术Wireless cellular network designs with multiple antennas have been adopted by several modern wireless systems, which aim for high throughput as well as high

此程序为潮流计算的最后一部分功率计算程序。-This program is the last part of the power flow calculation calculation program.

水平聚合的一种算法。请更改DBUTil文件中的用户id和passowrd。。程序使用pivot操作符水平聚合一个表。连接到数据库需要Sql server。

本源码是关于模糊聚类中的一小部分,是对课本中的习题的解答-The source is a fuzzy clustering on a small part of the exercise of textbooks in the answers

快速FFT算法的程序-FFT procedure

加减乘除24,java的GUI界面,输入的数字在1-13的范围内,产生的结果中已去除了冗余的结果,并统计产生结果的个数.- The arithmetic operations 24, java GUI contact surface, the input numeral in 1-13 scope, in the result which produces has removen the redundancy result, and the statistics has the result integer

Numerical Anaysis 8th Edition Burden and Faires (Fortran Source)

简单的循环链表算法-simple algorithm cycle Chain

资源描述水印：把指定水印复制到目标上，加透明效果 缩略图：把大尺寸图片复制到小尺寸图像上 验证码：随机生成中文或英文数字

利用KDD1999数据集进行K-means算法的实现-Mathimatics-Numerical algorithms