Description: OFDM：正交频分复用(OFDM)是第四代移动通信的核心技术。该文首先简要介绍了OFDM基本原理，重点研究了理想同步情
况下，保护时隙(cP)和不同的信道估计方法在高斯信道和多径瑞利衰落信道下对OFDM系统性能的影响。在给出OFDM系
统模型的基础上，用MATLAB语言实现了整个系统的计算机仿真并给出参考设计程序-OFDM : Orthogonal Frequency Division Multiplexing (OFDM) is the fourth-generation mobile communication core technology. The article briefly introduces the basic principles of OFDM, focus on the ideal synchronous circumstances, Protection slot (counted ac cording) and different channel estimation method in Gaussian channel and multi-path Rayleigh fading channels of OFDM system performance. OFDM system is the model on the basis of MATLAB language of the entire system is computer simulation and reference design process Platform: |
Size: 2291 |
Author:xoaxiao |
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Description: 利用matlab对空时编码的多天线系统中的alamouti空时编码进行了仿真，信道为瑞利衰落信道-Matlab using space-time coding on the multi-antenna system of space-time coding alamouti the simulation, channel for Rayleigh fading channels Platform: |
Size: 1024 |
Author:陈飞 |
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Description: 两靖rayleigh衰落信道仿真。This m-file uses successive iterations of data to create an animated =
effect
％showing the results of passing an unmodulated carrier through a simple =
two
％path Rayleigh fading channel. The following formula and diagram
％illustrates the m-file operation. The animation shows, input(blue)
％and the output(red), the the phase shifts, gains, and attenuations
％of the output sine wave or carrier.-Two Jing Rayleigh fading channel simulation. This m-file uses successive iterations of data to create an animated = effect showing the results of passing an unmodulated carrier through a simple = two path Rayleigh fading channel. The following formula and diagram illustrates the m-file operation. The animation shows, input (blue) and the output (red), the the phase shifts, gains, and attenuations of the output sine wave or carrier. Platform: |
Size: 1024 |
Author:刘美 |
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Description: MIMO（多输入多输出）信道模型建matlab环境，瑞利信道下mimo无线通信系统的仿真模及仿真-MIMO (Multiple Input Multiple Output) channel model matlab built environment, Rayleigh fading MIMO wireless communication system simulation mode and simulation Platform: |
Size: 2048 |
Author:魏臻 |
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Description: 主函数Alamouti(Nr,max_snr,max_err_symbol,symbol_per_frame)
调用函数QpskMapping(psudo_bit_sequence)－－二进制数据到QPSK信号的变换
调用函数RayleighCH(Nr,Nt)－－瑞利衰落信道模拟
仿真示例：
Alamouti(1,12,20,24)
说明：
1.2根发射天线、1根接收天线
2.最高信噪比为12dB，即仿真范围为0dB到12dB
3.在每个信噪比条件下,误符号数超过20即停止该信噪比条件下的仿真
4.每一帧数据为24个QPSK符号
综合仿真函数SimAlamouti(max_snr,max_err_symbol,symbol_per_frame)
具有一根接收天线系统的SER性能与二根接收天线的系统SER性能比较
SimAlamouti(12,20,24)-The main function Alamouti (Nr, max_snr, max_err_symbol, symbol_per_frame) function call QpskMapping (psudo_bit_sequence)- binary data to the QPSK signal transformation function call RayleighCH (Nr, Nt)- Rayleigh fading channel Simulation Example: Alamouti (1,12 , 20,24) Description: 1.2 transmission antennas, a receiving antenna 2. the highest SNR 12dB, that is, simulation range of 0dB to 12dB 3. in each signal to noise ratio conditions, the misuse of symbols that stop a few more than 20 The signal to noise ratio under the conditions of simulation 4. each frame of data for the 24 QPSK symbols integrated simulation function SimAlamouti (max_snr, max_err_symbol, symbol_per_frame) with a receiving antenna system SER performance and two receive antenna system SER performance comparison SimAlamouti (12,20,24) Platform: |
Size: 204800 |
Author:老何 |
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Description: 產生頻率選擇性衰落的雷利通道，參數由天線結構、OFDM系統的結構與功率延時結構來決定。-Have a frequency selective fading channel of Raleigh, parameters from the antenna structure, OFDM system, the structure and power structure to delay the decision. Platform: |
Size: 1024 |
Author:林季緯 |
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Description: OFDM系统仿真，信号采用卷积编码和交织技术、采用16-QAM和QPSK两种调制方式，干扰分别采用多径衰落和瑞利衰落两种。-OFDM system simulation, signal the use of convolutional coding and intertwined technology, using 16-QAM and QPSK modulation in two ways, interference were used to multipath fading and Rayleigh fading two. Platform: |
Size: 13312 |
Author:lihua |
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Description: MIMO2发2收,采用波束成形技术的BER计算,采用的是BPSK调制,并和发射端未使用beamforming进行了比较-Script for computing the BER for BPSK modulation in a Rayleigh fading channel with and without transmit beamforming Platform: |
Size: 1024 |
Author:张群 |
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Description: Script for computing the BER for BPSK modulation in a
Rayleigh fading channel with 2 Tx, 2Rx MIMO channel
Zero Forcing Equalization with Successive Interference
Cancellation (ZF-SIC)-Script for computing the BER for BPSK modulation in a
Rayleigh fading channel with 2 Tx, 2Rx MIMO channel
Zero Forcing Equalization with Successive Interference
Cancellation (ZF-SIC) Platform: |
Size: 2048 |
Author:mohanad1 |
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Description: 多径瑞利衰落信道下OFDM系统仿真，希望对首次接触这方面的人有所帮助-Multipath Rayleigh fading channel OFDM system simulation, the first contact with want to help people in this area Platform: |
Size: 584704 |
Author:woailuomo |
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Description: 在simulink下建立了OFDM系统的仿真模型，并对所建模型进行了分析，同时在两径和六径瑞利衰落信道以及系统中有无交织下对其进行仿真，给出了仿真结果。-Established under the simulink simulation model of the OFDM system, and the model analyzed, while two tracks and six Path Rayleigh fading channel, as well as whether the system under its interwoven simulated simulation results. Platform: |
Size: 184320 |
Author:huoyudizhonghai |
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Description: 正交频分复用(OFDM) 是第四代移动通信的核心技术。该文首先简要介绍了OFDM基本原理,重点研究了理想同步情
况下,保护时隙(CP) 和不同的信道估计方法在高斯信道和多径瑞利衰落信道下对OFDM系统性能的影响。在给出OFDM系
统模型的基础上,用MATLAB语言实现了整个系统的计算机仿真并给出参考设计程序。最后给出在不同的信道条件下,保
护时隙、信道估计方法对OFDM系统误码率影响的比较曲线,得出了较理想的结论。-Orthogonal frequency division multiplexing (OFDM) is the fourth generation mobile communications core technology. This article first introduces the basic principles of OFDM, focus on the ideal synchronous case, protection time slot (CP) and different channel estimation in the Gaussian channel and multipath Rayleigh fading channel on the OFDM system performance. In the OFDM system model is given based on the MATLAB language with the computer simulation of the entire system and gives reference to the design process. Finally, in a different channel conditions, the protection time slot, channel estimation method for OFDM system, the comparison of bit error rate curves, obtained better results. Platform: |
Size: 237568 |
Author:zhanpeng |
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Description: 多输入多输出正交分频多工模拟器。
正交分频多工:OFDM模拟器(外层函数)
create_channel:产生一个瑞利衰落信道复用,解的天线配置、正交分频多工结构、power-delay档案。
svd_decompose_channel:既然全网络知识是假设,在并行传输奇异值模式。这个函数分解这些频道模式。
BitLoad:适用bit-loading算法来实现预期的钻头和能量
-MIMO OFDM Simulator:
OFDM.m: OFDM Simulator (outer function)
create_channel.m: Generates a Rayleigh fading frequency-selective channel, parametrized by the antenna configuration, the OFDM configuration, and the power-delay profile.
svd_decompose_channel.m: Since full channel knowledge is assumed, transmission is across parallel singular value modes. This function decomposes the channel into these modes.
BitLoad.m: Apply the bit-loading algorithm to achieve the desired bit and energy allocation for the current channel instance.
ComputeSNR.m: Given the subcarrier gains, this simple function generates the SNR values of each channel (each singular value on each tone is a separate channel).
chow_algo.m: Apply Chow s algorithm to generate a particular bit and energy allocation.
EnergyTableInit.m: Given the SNR values, form a table of energy increments for each channel.
campello_algo.m: Apply Campello s algorithm to converge to the optimal bit and energy allocatio Platform: |
Size: 14336 |
Author:liufan |
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Search - Rayleigh fading ofdm