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THE_FAST_HANDOVER_RESEARCH_of_wimax_network
说明： 本文正是在研究WIMAX/802.16e协议和FMIPv6协议的基础之
上，提出了基于FMIPv6的WIMAX网络快速切换机制，该方案采用跨
层切换的思想，MAC层联合网络层同时进行切换，在链路尚未断开
之前即完成新转交地址(NCOA)获取等功能，从而加快了切换进程，
减小了切换时延和切换时的丢包率。在提出本切换机制的基础上，本
文在NSZ仿真平台上对所提出的切换方案做了系统性的性能仿真，通
过仿真结果验证了方案的可行性和优越性。
( In this paper, IEEE802.16e standard is described at first. Then an
introduction for the basic knowledge and research in MIPv6 and FMIPv6
protocol is given. A fast handover scheme of WiMAX network which
based on FMIPv6 protocol is suggested, which implements the fast
handover at IP layer associating with MAC layer at the same time.
scheme minimizes handover latency by predicting and preparing
This
the
impending handover in advance. Finally, simulation are carried out to
evaluate the performance of this fast handover scheme. The result of the
simulation shows that the fast handover scheme has good performance.
)
- 2010-04-28 09:22:20下载
- 积分：1
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tishengxiaobo
对齿轮箱故障进行提升小波去噪分解重构，准确判断初故障类型(Gearbox fault on lifting wavelet de-noising decomposition and reconstruction and accurately determine the beginning of the fault type)
- 2021-04-03 19:59:05下载
- 积分：1
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tese.zip
耳蜗实质上相当于一个滤波器组，耳蜗的滤波作用是在对数频率尺度上进行的，在1000HZ下，人耳的感知能力与频率成线性关系；而在1000HZ以上，人耳的感知能力与频率不构成线性关系，而更偏向于对数关系，这就使得人耳对低频信号比高频信号更敏感。Mel频率的提出是为了方便人耳对不同频率语音的感知特性的研究。频率与Mel频率的转换公式为(Cochlear substantially equivalent to a filter set, cochlear filter is used on logarithm frequency scale, under the 1000 hz, the perception of the human ear and a linear relationship with frequency In more than 1000 hz, the perception of the human ear does not constitute a linear relationship with frequency, and prefer to logarithmic relationship, which makes the human ear is sensitive to low frequency signal is better than high frequency signal. Mel frequency is put forward in order to facilitate the ear of the study of speech perception characteristics of different frequency. For frequency and Mel frequency conversion formula
)
- 2014-08-18 12:16:47下载
- 积分：1
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relay
认知中继网络包括一个主用户发射机和接收机，一个次用户发射机和接收机，以及一个放大转发中继。次用户发射机和中继从自然界获取能量。次用户共享主用户的频带进行数据传送，中继放大转发主用户发射机和次用户发射机的信号。次用户发射机和中继根据获取的能量和数据传送要求控制发射功率。功率控制建模为在能量因果约束、(Cognitive relay network includes a primary user transmitter and receiver, a secondary user transmitter and receiver, as well as an amplify and forward relay. Secondary user transmitter and relay obtain energy nature. Secondary users share a frequency band of the primary user data transmission, the relay amplification repeater primary user and a secondary user transmitter the transmitter signal. Secondary user transmitter and a relay and a data transfer request according to the energy obtained by controlling the transmission power. The power control is modeled as a causal constraints in energy,)
- 2015-01-04 15:04:25下载
- 积分：1
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wind_rose
matlab 绘制风玫瑰图函数 自动绘制方向并统计(matlab Wind rose of direction and intensity)
- 2015-01-14 21:29:40下载
- 积分：1
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lyarosenstein
largest lyapanov exponent finder
- 2015-03-22 18:20:10下载
- 积分：1
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shuzixinhaochuli-matlab-shiyan1
matlab 数字信号处理实验1代码全部 东南大学(Digital signal processing matlab code experiment a whole Southeast University)
- 2015-03-27 20:04:18下载
- 积分：1
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Slam3d
3 Dimension simultaneous localization and mapping (SLAM)
problem asks if it is possible for a mobile robot to be
placed at an unknown location in an unknown environment
and for the robot to incrementally build a consistent
map of this environment while simultaneously determining its
location within this map
- 2012-11-30 17:04:06下载
- 积分：1
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PIDCONTROLMATLAB
一种用MATLAB实现的控制，能达到很优的效果，大家不防试试。(A MATLAB implementation of the control, can achieve the very excellent results, we do not try prevention.)
- 2009-03-14 09:40:05下载
- 积分：1
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ganshefanzhen
利用matlab仿真雷达直射波与地面反射波干涉的雷达方向图。（仰角的大小对雷达作用距离的大小的影响）(Using matlab simulation radar direct wave direction of reflection wave interference with the ground radar chart. (the size of the size of the elevation of the radar range))
- 2013-10-31 19:41:43下载
- 积分：1
