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05441004
Multiple input multiple output techniques combined
with orthogonal frequency division multiplexing (MIMO-OFDM)
provide a promising approach for wireless systems. However, a
serious drawback of the OFDM system is the high peak-toaverage
power ratio (PAPR), which may severely affect the
power efficiency of RF power amplifiers. In this paper, we
propose a simple method to reduce the PAPR of MIMO-OFDM
signals based on the use of unused subcarriers. Instead of
processing the signals at each transmitter separately, a peak
cancelling signal is generated at one antenna and is then applied
to all the others with only simple modifications. Simulation has
shown that a minimum 2 dB reduction in PAPR can be achieved
for all transmit signals using this approach. As the signal
processing is nearly all done at a single transmitter, repetition of
the operations at each transmitter is avoided, and therefore the
overall cost of the system can be significantly reduced.
- 2011-11-05 01:46:42下载
- 积分：1
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RS_Y
说明： 这是通过MATLAB平台的重排时频分析实现(This is achieved through re-emission frequency analysis of the MATLAB platform)
- 2020-03-15 22:43:03下载
- 积分：1
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EtherCAT Slave DC Sync to customer
实现Ethercat现场通讯的主从站代码实例(An Example of Master-slave Station Code for Ethercat Field Communication)
- 2019-04-06 13:54:05下载
- 积分：1
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Fast_Affine_Projection Algorithms
说明： 一种快速仿射投影算法仿真,用于自适应降噪的DSP控制(The simulation of a fast affine projection algorithm)
- 2020-08-03 11:18:49下载
- 积分：1
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NetRemoting通信例子
C# 写的NetRemoting通信例子
双向通信(NetRemoting Communication Example Written in C#
Two-way communication)
- 2020-06-18 21:00:02下载
- 积分：1
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16QAM
说明： 这是16QAM的仿真，带GUI界面，很好用的。(This is 16QAM simulation, with GUI interface, very useful.)
- 2020-07-02 12:20:01下载
- 积分：1
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cyclostationary_dec
认知无线电中基于BPSK循环自相关函数的信号检测，时域上的经典算法，许多论文引用的方法。(signal dection based on cyclostationary of BPSK in Congnitive Radio)
- 2011-08-04 20:46:03下载
- 积分：1
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DOA
说明： 用来实现来波方向的估计，music和求根music算法的比较
- 2010-03-24 17:09:36下载
- 积分：1
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PELCO-pd
说明： ()
- 2007-03-28 10:47:16下载
- 积分：1
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伪随机LED灯，实现八位LED灯的随机闪烁以及其它的控制
伪随机LED灯，实现八位LED灯的随机闪烁以及其它的控制。(Pseudo-random LED lamp)
- 2020-06-21 09:40:02下载
- 积分：1
