yodasky

积分:807
上传文件:14
下载次数:227
注册日期:2008-12-25 15:27:40

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channel_model_lijiandong.rar - 西电李建东教授的信道建模的讲义,数学理论较深,2010-04-21 17:13:52,下载74次
A_Computation_of_Incoherent_Scatter_Spectra_in_the - 西安电子科技大学的一篇硕士论文: 高纬极区电离层非相干散射功率谱的模拟,2010-04-21 17:06:47,下载10次
Mobile-Channel-Characteristics.rar - Mobile Channel Characteristics, 移动通信信道的很好的一本书,经典书籍。,2010-01-18 21:50:36,下载18次
Matlab_simulink-Communicati-on-System-Simulation-a - <<Matlab_simulink通信系统仿真与建模实例精讲>>光盘内容,包含OFDM通信系统,MIMO通信系统,DS_CDMA通信系统,IS95前向链路系统,读者运行各通信系统的主程序就可以进行系统仿真。,2010-01-18 21:43:55,下载72次
Multipath_and_Doppler_Effects_and_Models.rar - 国外大学的讲义,对学习这2种效应基础理解很有帮助,pdf文档中有matalb代码带你一步一步的学习,很值得推荐。,2009-11-21 11:06:44,下载36次
c9_estimatepi.rar - pi的蒙特卡罗估计 matlab源程序有5个pi的估计,每一个都是基于500次的重复随机实验,2009-03-05 09:17:36,下载9次
ResearchonOVSFcodeassignmentalgorithm.rar - 提出1 种优先选择极左碎片的信道化码分配算法,该算法用很简单的方式降低了码阻塞率。将新算法与 已有的极左法和权重法进行比较,理论分析和计算机仿真表明,极左碎片法具有与极左法相近的简单性,在码阻塞 率和公平性方面几乎与权重法一样好,是简单、高效和公平的综合性能最好的算法。该算法可应用于以OVSF码作 为信道化码的各种DS2CDMA系统。,2008-12-25 17:20:35,下载8次
AnAlgorithmicViewonOVSFCode.rar - The combinatorial core of the OVSF code assignment problem that arises in UMTS is to assign some nodes of a complete binary tree of height h (the code tree) to n simultaneous connections, such that no two assigned nodes (codes) are on the same root-to-leaf path. Each connection requires a code on a specified level. The code can change over time as long as it is still on the same level. We consider the one-step code assignment problem: Given an assignment, move the minimum number of codes to serve a new request. Minn and Siu proposed the so-called DCAalgorithm to solve the problem optimally. We show that DCA does not always return an optimal solution, and that the problem is NP-hard. We give an exact nO(h)-time algorithm, and a polynomial time greedy algorithm that achieves approximation ratio Θ(h). Finally, we consider the online code assignment problem for which we derive several results,2008-12-25 17:04:36,下载10次
OVSFcode-dynamic-assinment-in-3G.rar - 本文在介绍了OVSF 码生成算法及属性的基础上,详细讨论了目前国际上较成熟的几种 动态OVSF 码分配算法,并对各算法的产生背景及特性进行了比较分析,2008-12-25 16:58:34,下载17次
ANovelFastConstructionandAllocationAlgorithmforOVS - 本文利用复制方法提出一种新的OVSF码复制生成算法,并在此基础上,研究了非可重排和可重排两种情况下的OVSF码快速分配问题. 利用复制生成的OVSF码字具有明显的异前置性特点,从而可以提高码字分配效率和减小硬件实现复杂度和降低呼叫阻塞率。,2008-12-25 16:46:25,下载5次
self-lean-proteus.rar - proteus单片机可视化仿真软件自学教程,适合于入门学习。,2008-12-25 16:25:38,下载5次
51-digital-display-protues.rar - keil51 c,proteus仿真文件,万年历的数码管显示仿真原理图,使用STC89C52RC芯片,其他类似芯片亦可使用,2008-12-25 16:19:17,下载117次
MatirceAndKeboardDisPlay.rar - keil51 c程序 矩阵和键盘显示,配合单片机学习板,只需修改引脚皆可。,2008-12-25 15:39:36,下载4次
99-0.rar - 程序名:99~0倒计时程序 程序功能:用P1口和P3.0、P3.1口实现动态显示,完成99~0的倒计时功能,2008-12-25 15:33:31,下载2次

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