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说明: 要:分析和研究了授权用户和认知用户共享频谱的一种算法的性能。
针对阴影效应或信道深衰落时,单用户频谱感知算法无法识别是频带未被
使用还是信道处于深衰落的情况,在频谱感知功率控制算法上进行了改进,
以克服这种算法的不足。改进后的算法能有效地控制认知用户的发射功率,
避免对授权用户产生有害的干扰。仿真结果表明改(To: analysis and research of the authorized users to share spectrum users and a cognitive performance of the algorithm. For the shadow effect or deep fading channel, the single-user spectrum sensing algorithm can not identify a band or a channel has not been used in the case of deep fading, the spectrum sensing power control algorithm has been improved on, to overcome the deficiencies of this method. The improved algorithm can effectively control the cognitive user' s transmit power, to avoid harmful interference with authorized users. Simulation results show that the change)
- 2010-04-14 20:28:19下载
- 积分:1
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chuanre_23
这是另一个相关程序,求解传热系数的基本思想相同,只是温度的检测点不同。(This is another procedure, solving heat transfer coefficient of the same basic idea, but the detection of temperature difference.)
- 2006-06-23 09:33:34下载
- 积分:1
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matlab-power-research
power system research
- 2012-04-26 21:39:29下载
- 积分:1
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Microsoft-Office-Worddhdhhhdhhhhdhd
实现华氏温度向摄氏温度的转换,包括全部的程序(Fahrenheit to Celsius conversion)
- 2012-05-20 09:18:15下载
- 积分:1
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CDMA2000-MATLAB-simulation
CDMA2000调制扩频与解调解扩的MATLAB仿真(CDMA2000 spread spectrum modulation and de conciliation spread MATLAB simulation)
- 2013-07-15 16:43:45下载
- 积分:1
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locallinear
用matlab自编的基于自适应局部线形化的软件可靠性模型.效果非常良好.源程序和数据集都有,可以直接运行.(using Matlab-based adaptive self Local Alignment of software reliability models. The effect was very good. source code and data sets have, and can directly operation.)
- 2007-04-11 02:11:16下载
- 积分:1
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MATLABConnector-2.0
matlab与andorid手机传感器通信(connect matlab with android sensors )
- 2014-11-24 21:31:55下载
- 积分:1
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ASIC_LIB
ASIC设计中常用的运算模块,如加减,常系数乘法,截断,饱和等。(some modules used in ASIC design.)
- 2010-03-10 15:52:28下载
- 积分:1
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finite-element_de
使用有限元方法求解漫射方程,其中所需要的三维有限元网格来自netgen软件。压缩包中包含了网格数据文件和源代码。代码运行之前首先要注意修改源代码中的网格文件的存放路径。(solve the diffusion equation with finite method,the mesh which is used in it is generated by netgen。A matlab source code and a mesh file is include in it. The mesh file path should be set before running the sourcecode.)
- 2012-11-15 18:41:28下载
- 积分:1
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dpsk
该程序完成了一个DPSK通信系统的仿真,用均匀随机数发生器产生01比特对,用差分编码将每2比特符号映射到4种信号点中之一个,绘制出了DPSK的误码率。( This procedure has completed a DPSK communications system s simulation, produces 01 bit right with the even random number generator, maps with the differential coding every 2 bits marks to of 4 kind of signal locations, drew up the DPSK error rate. )
- 2010-07-16 19:25:42下载
- 积分:1