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Description: cp0801_pathloss为UWB信道损耗计算函数，利用a=(c/(d^gamma))计算出信道增益，然后对函数的输入信号幅度进行变换得到输出结果。
cp0801_Gnoise1和cp0801_Gnoise2为产生AWGN的函数，分别为Eb/No和Ex/No条件下AWGN的产生-cp0801_pathloss for UWB channel depletion calculation function, use a = (c / (d ^ gamma)) calculated Channel Gain, then the function of the input signal range for transform output. Cp0801_Gnoise1 and AWGN cp0801_Gnoise2 to generate the function, for Eb / No and Ex / No conditions for the selection of AWGN
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Size: 1739 |
Author: 贾凯 |
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Description: Generate the digital AWGN signal n[k] (sampled n(t)) by generating zero mean
Gaussian random variables independently (separately) for each k MATLAB function random.
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Size: 2438 |
Author: 飞龙 |
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Description: cp0801_pathloss为UWB信道损耗计算函数，利用a=(c/(d^gamma))计算出信道增益，然后对函数的输入信号幅度进行变换得到输出结果。
cp0801_Gnoise1和cp0801_Gnoise2为产生AWGN的函数，分别为Eb/No和Ex/No条件下AWGN的产生-cp0801_pathloss for UWB channel depletion calculation function, use a = (c/(d ^ gamma)) calculated Channel Gain, then the function of the input signal range for transform output. Cp0801_Gnoise1 and AWGN cp0801_Gnoise2 to generate the function, for Eb/No and Ex/No conditions for the selection of AWGN
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Size: 1024 |
Author: 贾凯 |
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Description: Generate the digital AWGN signal n[k] (sampled n(t)) by generating zero mean
Gaussian random variables independently (separately) for each k MATLAB function random.
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Size: 2048 |
Author: 飞龙 |
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Description: 产生高斯分布随机变量方法的Matlab脚本，运用该小程序可以方便产生高斯分布随机变量-Random variables have a Gaussian distribution methods Matlab script, use the small program can easily generate Gaussian distributed random variables
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Size: 2048 |
Author: Leonard |
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Description: awgn generate code for c, c-awgn generate code for c, c++
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Size: 805888 |
Author: mike |
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Description: This matlab file is used to generate noise signal which is added to the transmitted signal in an AWGN channel. Based on the SNR value the power of the noise is determined.
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Size: 1024 |
Author: muruga |
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Description: 仿真（n，k，m）非系统卷积码的桶式堆栈算法(Stack-Bucket Algorithm)序列译码在AWGN信道条件下的误码性能，信噪比区间、卷积码参数、生成序列以及吊桶大小、堆栈大小等算法参数均可以自己设定。-Simulation (n, k, m) non-systematic convolutional codes of the barrel stack algorithm (Stack-Bucket Algorithm) sequence decoding in the AWGN channel BER performance under the conditions of the SNR range, convolutional code parameters, generate sequences as well as the bucket size, stack size of the algorithm parameters can be set.
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Size: 10240 |
Author: 孙琛 |
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Description: ldpc码在AWGN信道下的性能仿真。包括geth.m,getG.m,H2G.m,decode.m,BER.m按传统的编码方案编码，生成H矩阵后转化为G矩阵，编码后送入高斯信道。仿真得到BER性能-ldpc codes in the AWGN channel performance simulation. Including geth.m, getG.m, H2G.m, decode.m, BER.m coded according to the traditional encoding scheme to generate H matrix is transformed into G matrix encoded into the Gaussian channel. Simulation, the BER performance
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Size: 68608 |
Author: 熊路 |
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Description: 关于BPSK的误码率的MATLAB仿真程序。是在高斯信道（AWGN)下的仿真，能够生成图像形式。-BPSK bit error rate on the MATLAB simulation program. In the Gaussian channel (AWGN) under the simulation, can generate the image forms.
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Size: 1024 |
Author: 秦歌 |
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Description: 这是一个AWGN信道下，编译码仿真的C程序。本人已经用它产生数据绘制折线图！包含编码，译码，信道模拟，误码率计算 …… ,程序结构清晰，不复杂，适合与初学者来了解，基本通信流程！-This is an AWGN channel, the decoding simulation C program. I' ve used it to generate data to draw a line chart! Including encoding, decoding, channel simulation, bit error rate ... ..., the program structure clear, not complicated, for with the beginners to understand, the basic communication process!
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Size: 1024 |
Author: jjl |
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Description: This program will generate AWGN noise and adds it to the signal
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Size: 1024 |
Author: abc |
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Description: 加性高斯白噪声信道的仿真。利用BOX-MULLER算法产生信道，画出PDF曲线。采用基于CDF的K-S TEST来检测所产生的高斯信道是否符合理论分布。-Additive white Gaussian noise channel emulation. BOX-MULLER algorithm to generate the channel, to draw PDF curve. Based on the CDF of KS the TEST to detect the generated Gaussian channel is the theoretical distribution.
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Size: 1024 |
Author: Xuan Gu |
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Description: QPSK调制后产生QPSK信号，QPSK信号分别通过AWGN信道、Rayleigh衰减信道和Rician衰减信道，分别通过QPSK解调出数字信号，通过输入与输出数字信号的对比计算出仿真过程中的传输误比率，并将其与各衰减信道的理论误比率进行对比-Generate QPSK signal QPSK modulation, QPSK signals through AWGN channel, Rayleigh fading channel and Rician fading channel, respectively, through the QPSK demodulation of digital signals by comparing input and output digital signals to calculate the simulation process of transmission error rate, and to compare with the theoretical error rate for each decay channel
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Size: 251904 |
Author: 万玲玲 |
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Description: This function generates an Additive White Gaussian Noise (AWGN) sample at every call. Its beauty lies in its simplicity! The generated sample set will have zero mean and a standard deviation of 1. Therefore, one can simply scale the output samples by a different standard deviation to generate different noise profiles. To do this scaling, simply multiply the sample with the standard deviation of your choice.
This is a very versatile function that can be used in communication system simulations and random number generation in various applications. I have used it in the past while working with channel encoder and decoder simulators.
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Size: 1024 |
Author: 明 |
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Description: The receiver performance is quantified by depicting the receiver operating char- acteristics (ROC) curves. This curves serve as a tool to and study the performance of a sensing scheme. ROC graphs are employed to show trade-of vs between detection probability and false alarm rates, (i.e. PD versus PFA), thus allowing the determination of an optimal threshold. To illustrate the performance of energy detectors, we generate complementary ROC curves (the average probability of miss detection $ P_{md} 1 - P_d$ versus the false alarm probability $P_f$ for different receiver structures and in different fading environments.Fig. 1 illustrates the complementary ROC curves for a single channel reception (no diversity) over AWGN channels. This figure depicts the complementary ROC curves for energy detectors.
-The receiver performance is quantified by depicting the receiver operating char- acteristics (ROC) curves. This curves serve as a tool to and study the performance of a sensing scheme. ROC graphs are employed to show trade-of vs between detection probability and false alarm rates, (i.e. PD versus PFA), thus allowing the determination of an optimal threshold. To illustrate the performance of energy detectors, we generate complementary ROC curves (the average probability of miss detection $ P_{md} 1 - P_d$ versus the false alarm probability $P_f$ for different receiver structures and in different fading environments.Fig. 1 illustrates the complementary ROC curves for a single channel reception (no diversity) over AWGN channels. This figure depicts the complementary ROC curves for energy detectors.
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Size: 1024 |
Author: sagar |
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Description: 盲检测中，在AWGN信道环境和瑞利衰落环境下，产生16qam信号，并且计算高阶累积量和高阶矩-Blind detection in AWGN channel environment and Rayleigh fading environment, generate 16qam signal and calculate higher-order cumulants and higher moments
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Size: 1024 |
Author: wuruian |
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Description: A 16-QAM signal X, whose power is normalized as unity, is transmitted with OFDM over the discrete-time channel model h which has been used in Homework #2 and #3. As depicted in the below figure, the transmitter (TX) is now equipped with an N-point IDFT and the receiver (RX) with an N-point DFT, along with adding cyclic prefix (CP) and removing CP removal, respectively. The complex AWGN n is set with 20 dB SNR. Suppose that N=256 and the length of CP is 64. Assuming the OFDM system works with perfect synchronization. -Generate two pseudo random (PN) sequences for X, each with a length of 256 samples which are taken {+1,-1}, and add them before the 16-QAM data with a proper CP. The OFDM frame is depicted in the following figure. PN1 and PN2 are used for channel estimation now. Suppose the PN patterns are known at RX. Use the least squares (LS) method to estimate the channel by averaging the results obtained individually PN1 and PN2. (When perfoming the DFT window for the received signal at RX, you need to notice that the channel results in a delay of 22 samples.)
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Size: 210944 |
Author: 淘爱57 |
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Description: this simple SISO OFDM code.
In this code we generate CIR and with fft CFR.
finally we compare simulation result for multipath and AWGN channel-this is simple SISO OFDM code.
In this code we generate CIR and with fft CFR.
finally we compare simulation result for multipath and AWGN channel
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Size: 1024 |
Author: mostafa |
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Description: 1） 生成具有大小的LDPC奇偶校验矩阵。
2） 使用BF算法对使用1）生成的码字进行解码。
3） 给出解码算法在BPSK调制和AWGN信道下，信噪比为1、1.5、2、2.5、3db时的误码概率。(1)Generate a parity check matrix of LDPC with size .
2)Use the BF algorithm to decode a codeword generated by using 1).
3)Give the bit error probability of your decoding algorithm when the SNR is 1, 1.5, 2, 2.5, 3 dB with BPSK modulation and AWGN channels.)
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Size: 29696 |
Author: 项庄舞剑 |
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