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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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macprotocol
无线环境中，手机、计算机等接入信道的mac层协议(At wireless radio environment,handphone、computor use mac potocol to access chanel.)
- 2009-12-18 20:50:53下载
- 积分：1
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EmFDTD-v1[1].2r1
说明： 一种广角镜头光学畸变的数字校正算法和广角成像系统光学畸变的数字校正方法两篇文章(Load Balanced Routing Protocols for Ad Hoc Mobile Wireless Networks)
- 2010-04-15 21:33:09下载
- 积分：1
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Attachments_2014726
papers on Power Quality IEEE
- 2015-01-14 10:00:15下载
- 积分：1
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wwzl
实时录音去噪,来自足球场上的呜呜组啦噪声，有GUI，可以自己选择噪声类型，使用FIR滤波器滤波(real-time denoising)
- 2013-11-28 15:17:46下载
- 积分：1
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Matlabdsp
Matlab数字信号处理与应用源代码,
包含的实例所使用的源程序清单，文件夹第3章～第7章分别包括各章节内的实例源程序。
(Digital signal processing and application of Matlab source code that contains an instance of the use of source lists, folders, Chapter 3 ~ Chapter 7, respectively, including source code examples within the chapters.)
- 2009-09-17 18:28:08下载
- 积分：1
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Matlab-parallel-and-distributed
有关matlab并行以及分布式运算的书籍，适合初学者使用。(About matlab parallel and distributed computing books for beginners to use.)
- 2013-12-28 17:37:56下载
- 积分：1
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近场MVDR程序
说明： 线性阵列在近场区域运用MVDR算法定位噪声源，里面有几种简单的算法(Linear arrays use MVDR algorithm to locate noise sources in near field. There are several simple algorithms in it.)
- 2021-04-15 19:28:54下载
- 积分：1
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simu
说明： DS-UWB的仿真框图，误码率仿真，脉冲发生器，ook和bpsk调制，以及rake接收等(the simulation graph of DS-UWB,it includes the BER and pulse generation,ook and bpsk modulation and rake receiver.)
- 2005-09-17 19:07:50下载
- 积分：1
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project
Pulse-code modulation (PCM) is a method used to digitally represent sampled analog signals. It is the standard form of digital audio in computers, Compact Discs, digital telephony and other digital audio applications. In a PCM stream, the amplitude of the analog signal is sampled regularly at uniform intervals, and each sample is quantized to the nearest value within a range of digital steps. Quantization Noise occurs in PCM.
- 2013-10-06 05:07:20下载
- 积分：1
