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ifdma_tfrank
The Interleaved Frequency Division Multiple Ac-
cess (IFDMA) scheme is based on compression, repetition and
subsequent user dependent frequency shift of a modulated signal.
Multiple access is enabled by the assignment of overlapping but
mutually orthogonal subcarriers to each user. In this paper it
is shown that IFDMA can be regarded as unitary precoded
OFDMA with interleaved subcarriers. On the other hand,
IFDMA is shown to be a CDMA variant with frequency domain
orthogonal signature sequences and chip interleaving. Thus, it
combines the advantages of single and multi carrier transmission
such as low peak to average power ratio, orthogonality of the
signals of different users even for transmission over a time
dispersive channel and low complexity. Simulation results show
the good performance of coded IFDMA transmission over a
mobile radio channel for different data rates.
- 2010-12-01 19:31:38下载
- 积分:1
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SVD-BASED
一种基于奇异值分解的数字水印技术,这是一篇很经典的文章,再此文章之后,基于svd的水印技术大量出现(a digital watermarking technologybased on Singular value decomposition , which is a classic article, and then, after this article, the watermarking technique based on large numbers of svd)
- 2010-05-19 23:04:15下载
- 积分:1
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turbo_code
turbo_tst.m 是启动文件,利用bcjr算法进行Turbo码的仿真。同时为了进行比较,还进行了viterbi软译码的仿真。单独的turbo码的仿真主要就是bcjr.m程序,viterbi译码所需的文件比较多一点。(turbo_tst.m the startup files, the use of simulation algorithms bcjr Turbo codes. Meanwhile, in order for comparison, the viterbi decoding software for simulation. Simulation separate turbo code is mainly bcjr.m program, viterbi decoding files needed a little more.)
- 2014-01-06 20:18:11下载
- 积分:1
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VSS_Ray
说明: 用于故障诊断研究的vss程序代码,感兴趣的可以看看(The VSS program code for fault diagnosis research can be viewed as interesting)
- 2020-06-18 02:20:02下载
- 积分:1
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mewton
mewton迭代法,是数值分析中很重要的一种,源码为其在matlab中的实现。(mewton iterative method, numerical analysis is a very important one in the matlab source code for its realization.)
- 2009-02-12 00:02:00下载
- 积分:1
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jpeg-matlab
基于MATLAB实现的JPEG具体实现。(MATLAB based on the achievement of concrete realization of the JPEG.)
- 2009-04-20 19:42:29下载
- 积分:1
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matlab
说明: 最完整MATLAB工具箱,包含各种工具箱的下载地址(The most complete MATLAB toolbox, the toolbox contains a variety of download Address)
- 2008-11-26 15:08:56下载
- 积分:1
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graphic_alogrithms_collection
说明: 图论flord算法、哈密顿通路算法、kruskal算法、最大流算法、prim算法、旅行商算法及路由算法等等,都是由Matlab编写的图论算法程序。(Many graphic alogrithms are collected here. They includes flord, hamiltonian path, kruskal, max flow, prim, traveling salesman problem, and routing algorithms. All this are developed with Matlab.)
- 2010-05-01 00:35:41下载
- 积分:1
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Exercise4
程序实现设计一单一感知器神经元以及采用神经网络拟合奇异函数。压缩包中还包含相关的参考资料。(Design a program to achieve a single sensor neurons and neural networks fitting singular function. Compressed package also contains the associated reference materials.)
- 2013-09-06 08:34:41下载
- 积分:1
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LJS
说明: 升降压斩波电路,控制参数:占空比啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊(ddfnjefnaln nalfnleaflakfnlweknf)
- 2019-03-17 10:20:17下载
- 积分:1