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Description: OFDM调制的的AWGN加瑞丽衰落信道，其它的我就不多说了-OFDM modulation of the AWGN Jiaruili fading channel, and others I do not talk a lot
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Size: 14115 |
Author: 吕军红 |
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Description: 一篇关于宽带MIMO-OFDM系统的文章，从最基本的系统结构，到复杂的信道估计等都有极其详细的论述，可以说代表了当今MIMO-OFDM系统研究的潮流和研究现状的总述！-one of the Broadband MIMO-OFDM articles from the most basic system structure, to complex channel estimation and others all have very detailed exposition It can be said on behalf of today's MIMO-OFDM system and the trend of the total study to the status quo!
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Size: 922162 |
Author: 刘斌 |
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Description: MIT关于OFDM收发器、WIFI收发器的ASIC和 FPGA硬件开发源码及资料，比较不错的资料OFDM: OFDM transceiver (transmitter and receiver), highly parameterized to cover 802.11a (WiFi), 802.16 (WiMax) and others in the future. Support for 802.15 (WUSB) is currently being worked on.
802.11a: 802.11a WiFi transmitter
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Size: 802718 |
Author: test |
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Description: OFDM调制的的AWGN加瑞丽衰落信道，其它的我就不多说了-OFDM modulation of the AWGN Jiaruili fading channel, and others I do not talk a lot
Platform: |
Size: 13312 |
Author: 吕军红 |
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Description: 一篇关于宽带MIMO-OFDM系统的文章，从最基本的系统结构，到复杂的信道估计等都有极其详细的论述，可以说代表了当今MIMO-OFDM系统研究的潮流和研究现状的总述！-one of the Broadband MIMO-OFDM articles from the most basic system structure, to complex channel estimation and others all have very detailed exposition It can be said on behalf of today's MIMO-OFDM system and the trend of the total study to the status quo!
Platform: |
Size: 921600 |
Author: 刘斌 |
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Description: MIT关于OFDM收发器、WIFI收发器的ASIC和 FPGA硬件开发源码及资料，比较不错的资料OFDM: OFDM transceiver (transmitter and receiver), highly parameterized to cover 802.11a (WiFi), 802.16 (WiMax) and others in the future. Support for 802.15 (WUSB) is currently being worked on.
802.11a: 802.11a WiFi transmitter-MIT on the OFDM transceiver, WIFI transceiver ASIC and FPGA hardware development source code and information, good information comparing OFDM: OFDM transceiver (transmitter and receiver), highly parameterized to cover 802.11a (WiFi), 802.16 (WiMax) and others in the future. Support for 802.15 (WUSB) is currently being worked on.802.11a: 802.11a WiFi transmitter
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Size: 802816 |
Author: test |
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Description: 多输入多输出的信道仿真程序,可以从这上面的情况来仿真其他的,这个只是一个范例-Multiple-input multiple-output channel simulation procedures can be from above to simulate the situation of others, this is only an example
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Size: 2048 |
Author: fxm |
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Description: OFDM信道建模simulink仿真的MATLAB源码
-OFDM channel modeling simulation of MATLAB source simulink
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Size: 12288 |
Author: xiefang |
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Description: 还在为“基于MATLAB的OFDM系统仿真”的朋友，可以看看我总结的资料！
该代码通过综合了本站中的两个源代码，在MATLAB 7.0下完成OFDM系统的完美仿真：音频数据采集->S/P转换->16QAM映射->IFFT处理->添加CP->P/S->理想/多径信道传送->……（FFT等）->传输结果比较（前后频谱图、可以直接通过听前后的音频文件来辨别系统的好坏-理想信道时音质前后相同）。在此还要感谢那两位站员提供相关的代码，也希望能对其他人有帮助。更希望本站能吸引更多的编程爱好者再创佳绩。-KEYWORD:OFDM MATLAB 7.0 CP IFFT FFT P/S S/P
Also for the " Based on MATLAB simulation of the OFDM system," a friend, you can see my summary of the information! The code through a combination of the two site source code, MATLAB 7.0 at complete perfection OFDM system simulation: Audio Data Acquisition-> S/P conversion-> 16QAM mapping-> IFFT processing-> Add CP-> P/S-> ideal/multi-path channel transmission-> ... ... (FFT, etc.)-> transmission results (before and after the frequency spectrum can be directly before and after listening to audio files to identify the system good or bad- when the ideal channel before and after the same sound quality). This would also like to thank at the two stations to provide the relevant code, also hope to have helped others. I also hope to attract more site programming enthusiasts new heights.
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Size: 8192 |
Author: sunshinepwf |
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Description: 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.
Platform: |
Size: 714752 |
Author: payal |
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Description: 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.
Platform: |
Size: 5120 |
Author: payal |
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Description: Time and Frequency Synchronization Techniques for
OFDM Systems operating in Gaussian and Fading
Channels: A Tutorial
The aim of this paper is to survey and compare
previous methods for Data-aided timing and frequency
synchronization of OFDM System. In the sequel, we propose a fast
and accurate FFT-based frequency offset estimation. The
synchronization techniques are examined in Gaussian andMultipath fading environments for comparison. The results of the
performance comparison are presented in terms of mean andmean-square error (MSE) obtained by simulations. The timing
offset estimator with best performance is chosen for system timingsynchronization. The FFT-based frequency offset estimation
method has significantly smaller MSE than others can beperformed using the same timing training symbol. Therefore,there is only one training symbol needed as preamble in whole
synchronization process.
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Size: 340992 |
Author: Mohamed |
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