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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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DigitalImageProcessingUsingMatlab_muya
Ebook on digital image processing using matlab in pdf format
- 2009-09-07 11:41:24下载
- 积分：1
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-Cortex-M4-----Kinetis
三天入门 Cortex-M4 ----Kinetis(正式版)，PDF文件，野火Kinetis开发教程，主要有 IAR的使用教程、Kinetis启动流程讲解、野火K60库的调用 三个部分组成。(Three days entry Cortex-M4---- Kinetis (official version), PDF file, wildfires Kinetis development tutorials, mainly use the IAR tutorial, Kinetis start the process to explain, wildfires K60 library calls three parts.)
- 2013-08-20 14:15:06下载
- 积分：1
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Harmonic-Balance-Simulation-on-ADS
Harmonic Balance simulation
- 2014-09-18 06:56:14下载
- 积分：1
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00554481
he fabrication and performaince of a semiconductor
optical amplifier for wavelength conversion in subcarrier
multiplexed system is described. The amplifier is of the buried
facet design and has p o ~ a r ~ ~ a ~anido nre flectivity gain ripple of
carrier multiplexing, multiple 50-Mb/s
data streams at a wave~ength of 1.553 pm are injected into the
amplifier. The gain y of the amplifier transfers the
data to a dierent w of light siniultaneously injected
into the amplifier. Error free retri of subcarrier multiplexed
data has been de~ons~ratefodr the wavelength converted output.
The small signal bandwidth of the wavelength conversion process
is 5 GHz.
- 2016-03-14 23:28:42下载
- 积分：1
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A-Fast-Algorithm-for-Groebner-Basis-Conversion-an
A Fast Algorithm for Groebner Basis Conversion and its Applications
- 2011-03-17 22:42:43下载
- 积分：1
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Practical-signal-theory
Practical signal theory
- 2013-07-24 22:07:41下载
- 积分：1
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wsn
RESEARCH PAPERS REGARDING WSN
- 2014-10-11 01:34:12下载
- 积分：1
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LMS_THEORY
常用的自适应滤波技术有：最小均方（LMS）自适应滤波器、递推最小二乘（RLS）滤波器、格型滤波器和无限冲激响应（IIR）滤波器等。这些自适应滤波技术的应用又包括：自适应噪声抵消、自适应谱线增强和陷波等。现在，已经有许多信号处理书籍全面介绍了自适应滤波技术。考虑到生物医学工程专业大三本科生的学习基础，本章首先介绍最小均方（LMS）自适应滤波器原理，在此基础上介绍自适应噪声抵消器及其生物医学应用，这样安排更能够突出本教材的宗旨。(LMS theory)
- 2009-03-18 09:57:43下载
- 积分：1
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Energydetectionofunknowndeterministicsignals
一篇关于能量检测很经典的文章，可以在初学CR能量检测时用到。(Classic article on the energy detection of articles, energy detection can be used when CR beginner.)
- 2010-12-02 11:39:43下载
- 积分：1
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