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TimeSeries
time series annalys. Trend decomposyshion. Season index decomposition
- 2010-11-09 07:32:46下载
- 积分:1
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RESEARCH_ON_END-TO-END_HANDOFF
说明: 本文在研究IEEE802.16e协议和SIP协议的基础上,提出了利用
SIP解决IEEE802.16接入网络中端到端切换的新方案。该方案采用跨
层切换的设计思想,联合MAC层和应用层SIP协议,在底层链路切换
的同时,完成应用层会话的修改,加快了切换过程,减少了切换时延,
提高了切换成功率。本文基于NS2仿真平台,完成了相应的仿真平台
搭建过程,实现了SIP协议模块和WiMAX协议模块的融合,扩展了SIP
协议模块的部分消息,最终在基于SIP协议模块和WiMAX协议的统一
NS2平台上实现了基于WiMAX接入、支持SIP扩展功能的SIP会话建
立和修改过程。
( On the basis of study of WiMfAX and SIP, a new mechanism using
SIP to achieve end-to-end handoff under IEEE802.16e access networks is
Ob
proposed
handoffs,
in this thesis. The mechanism adopts a cross-layer design
which means that the l}iIAC layer handoff procedure can
interleaved with that of the application layer. During the handoff at link
)
- 2010-04-28 09:31:08下载
- 积分:1
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p2z
正态分布表的PZ值转换。可以输入P矩阵得到Z值(PZ transfer)
- 2012-04-11 20:08:48下载
- 积分:1
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document_MatLab-Login
matlab编写的登陆- 报警登陆系统,2010b实测通过可用(Login alarm system)
- 2013-03-20 02:32:53下载
- 积分:1
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DV_Hop_modify
针对基本无线传感器网络DV-Hop定位算法中,计算平均跳距时产生偏小误差的原因,提出了基于平均跳距修正的DV-Hop算法。改进算法中,引入信标节点个数比例、所有信标节点平均跳距的最大值以及所有信标节点平均跳距的平均值三个因子,并采用它们对平均跳距进行修正。通过Matlab软件对算法进行仿真验证,结果表明,改进后的 DV-Hop 算法有效降低了未知节点的定位误差,是一种可行的无线传感器网络节点定位解决方案。(DV-Hop localization algorithm for wireless sensor networks, we calculate the average hop distance small error of reasons, raised the DV-Hop algorithm based on the average hop distance correction. Improved algorithm, the proportion of the number of nodes, the introduction of beacons, the beacon node average maximum jump distance as well as all the beacon nodes average jump from the average of three factors, and their average hop distance correction. Matlab software simulation results show that the improved DV-Hop algorithm effectively reduce the unknown node positioning error, the solution is a viable wireless sensor network node positioning algorithm.)
- 2021-05-15 22:30:07下载
- 积分:1
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MATLAB-function
matlab 主要函数的介绍,很全很实用的输入 输出函数 (Introduction matlab main function, it is full of very useful input and output functions)
- 2014-11-19 09:26:52下载
- 积分:1
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ADSP-HW2
calculating the autocorrelation matrix for the data given
- 2013-04-13 09:57:15下载
- 积分:1
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pso_image_segmentation
标准粒子群算法PSO,matlab实现,处理彩图或灰度图(Standard particle swarm optimization PSO)
- 2013-04-22 21:27:44下载
- 积分:1
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MobileFadingChannelsModellingAnalysisSimulation
本书是关于无线衰落信道方面的一本好书,书中内含MATLAB代码!
(All relevant components of a mobile radio system, from digital modulation techniques over channel coding through to network aspects, are determined by the propagation characteristics of the channel. Therefore, a precise knowledge of mobile radio channels is crucial for the development, evaluation and test of current and future mobile radio communication systems. This volume deals with the modelling, analysis, and simulation of mobile fading channels and provides a fundamental understanding of many issues that are currently being investigated in the area of mobile fading channel modelling. The author strongly emphasises the detailed derivation of the presented channel models and conveys a high degree of mathematical unity to the reader.
Introduces the fundamentals of stochastic and deterministic channel models
Features the modelling and simulation of frequency-nonselective fading channels (Rayleigh channels, Rice channels, generalized Rice channels, Nakagami channels, various types )
- 2010-11-11 23:51:08下载
- 积分:1
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bpskqamgmskfsk
普通通信信号bpsk,qpsk,qam调制解调(bpsk qpsk qam fsk gmsk modulation and demodulation)
- 2009-12-11 19:40:53下载
- 积分:1