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Cross-layer-
一种基于遗传算法的OFDMA系统的跨层资源分配(Cross-layer resource a genetic algorithm-based allocation of OFDMA system)
- 2013-12-19 13:24:17下载
- 积分：1
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communication
本文件包含通信所有过程，从调制，扩频，发送到接收，经过解扩，解调等。其中信道可以随机产生时变的多径信道。()
- 2021-04-07 15:19:01下载
- 积分：1
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4
说明： ：载波频率偏移是OFDM系统实现的关键问题之一。分析了OFDM 系统载频偏移估计的2
种算法，即利用循环前缀和训练序列方法。它们均为最大似然估计方法。分别讨论了它们的基本
思想、实现方法和仿真结果。可以看出基于循环前缀算法复杂度较小，精度不高，而基于训练序列
的算法有较高的估计精度，但降纸了系统传输效率。(Abstract：Carrier frequency ofset is one of the key problems in OFDM system．Two foundational methods
。cycling prefix—based and training sequence—based algorithms。to estimate OFDM carriers~equency
ofset are analyzed．Then it discusses their basic thoughts。implementing methods and simulation resuits．
Finally。merits and demerits of every algorithm are supposed．It concludes that the cycling prefix—
based algorithm has less complexity and less precision。and that the training sequence—based algorithm
has better estimation performance at the cost of transmission efficiency．)
- 2010-05-18 18:34:44下载
- 积分：1
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fenxuan
这是自己收集的一些有关信号分选的比较优秀的毕业论文，希望对需要的人有所帮助(Some comparison of the signal sorting excellent thesis)
- 2010-06-02 16:46:29下载
- 积分：1
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FSO_OOK_PPM_DPPM
这是自由空间光通信实现OOK、PPM、DPPM调制解调并计算在高斯信道中的误码率的Matlab程序。(This is a free-space optical communications to achieve OOK, PPM, DPPM modulation and demodulation in the Gaussian channel and calculate the bit error rate in Matlab.)
- 2021-04-11 18:18:57下载
- 积分：1
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ThinkPHP_3.2.1_20140214
实用性代码，可以在手机等移动设备上很好的使用，可操作性强。(Usefulness of the code can be very good for use on mobile phones and other mobile devices operable.)
- 2014-02-26 09:57:45下载
- 积分：1
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uwb_ppm_bpsk
uwb_ppm_bpsk的源码,可以由此学习UWB的调制解调方式,对研究UWB有很大帮助(uwb_ppm_bpsk source code, which can study the UWB modulation and demodulation, UWB research will be of great help)
- 2021-04-10 15:58:59下载
- 积分：1
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feng_uj11
音频信号通过LM386放大，包括四元数的各种计算,D-S证据理论数据融合。( LM386 audio signal amplification, Including quaternion various calculations, D-S evidence theory data fusion.)
- 2017-04-25 17:47:26下载
- 积分：1
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wirelss_communicattion
可以实现无线通信，代码简单便于理解，是基于wince平台的(Wireless communications can be achieved, the code simple and easy to understand, is based on the wince platform)
- 2008-12-29 20:53:26下载
- 积分：1
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yixiantong
一个新的通信协议，一线通协议模版软件，希望对大家开发有用(A new communication protocol, Link Agreement template software, everyone would like to develop useful)
- 2020-10-08 18:17:35下载
- 积分：1
