Description: On the Energy Detection of Unknown Signals Over Fading ChannelsAbstract—This letter addresses the problem of energy detection of an unknown signal over a multipath channel. It starts with the no-diversity case, and presents some alternative closed-form expressions for the probability of detection to those recently reported in the literature. Detection capability is boosted by implementing both square-law combining and square-law selection diversity schemes. Index Terms—Diversity schemes, energy detection, fading channels, low-power applications, square-law detector, unknown signal detection. Platform: |
Size: 174453 |
Author:chenpeng3361 |
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Description: This mfile illustrates a simple two path Rayleigh multipath fading channel
This mfile inputs an unmodulated sinewave through a simple Rayleigh two path fading channel and shows the output with phase, gain, and attenuation characteristics via animation
-This illustrates a simple two path Ra yleigh multipath fading channel proficient This mfile uts an unmodulated sinewave through a simple Ra yleigh two path fading channel and shows the out put with phase, gain, and attenuation characteristics via animatio n Platform: |
Size: 3072 |
Author:李艳芬 |
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Description: Simulator for a GSM traffic channel transmission and reception
This Simulink model simulates the entire transmission and reception of voice data of a traffic channel for GSM (TCH/FS)over a multipath fading channel, and it calculates the BER of the received signal-Simulator for a GSM traffic channel transm ission and reception This Simulink model simul ates the entire transmission and reception of v oice data of a traffic channel for GSM (TCH/FS) o ver a multipath fading channel, and it calculates the BER of the received signal Platform: |
Size: 14336 |
Author:李艳芬 |
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Description: ％ OFDM系统的发送，通过多径衰落信道，接收，判决
％ 信道使用jakes模型。
％ 时间色散系数我使用[0.9, 0.8 , ....., ]，你们自己去修改。
- OFDM system to send, through the multipath fading channel, receive, sentence channel using Jakes model. Dispersion coefficient of the time I used [0.9, 0.8, .....,], to amend your own. Platform: |
Size: 3072 |
Author:LD |
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Description: 波形信道的仿真，主要是多径衰落包括了散射模型和离散模型-Channel waveform simulation, mainly multipath fading include scattering model and the discrete model Platform: |
Size: 8192 |
Author:wyg051230 |
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Description: 多径信道仿真
有三条固定路径的AWGN多径信道的QPSK系统进行BER性能方针，并与在理想的AWGN信道中同样系统的BER进行比较，为简化模型，作如下假设：
1，信道中有三条路径，包括一条没有衰落的LOS路径和两条具有瑞利衰落的路径。与各路径相应的接收功率以及路径间的延迟差是仿真的参数
2，信道的锐利衰落仅影响发送信号的幅度，不影响瞬时相位。
3，在符号间隔内各多径分量的衰减幅度是常数，并与相邻间隔无关。-Multipath channel simulation There are three fixed path multipath AWGN channel BER performance of QPSK systems approach, and in an ideal AWGN channel BER the same system for comparison, in order to simplify the model, make the following assumptions: 1, There are three channels path, including a no decline LOS path and the two have a Rayleigh fading path. Corresponding with the path to receive power as well as the path delay difference between the simulation parameters of 2, channel sharp decline affects only the magnitude of the transmitted signal, does not affect the instantaneous phase. 3, in the symbol intervals multipath component of the decay rate is constant, and has nothing to do with the next interval. Platform: |
Size: 5120 |
Author:TT |
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Description: rake接收机的链路生成程序，包括短码生成，长码生成，哈达码变换，瑞利信道，以及多径衰落等。-rake receiver of the link generated procedures, including short-code generation, long-code generation, Hadamard transform, Rayleigh channel, as well as multipath fading and so on. Platform: |
Size: 2048 |
Author:王波 |
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Description: 仿真CDMA系统的信道，在输入所需用户序列和其他干扰用户序列后在信号上叠加高斯白噪声，干扰用户多径干扰和所需用户的多径干扰和衰落。并根据输入延时曲线产生信道延时，输出mul_fad_sequence为信道信号输出，max_delay为信道最大延迟，fade_sign为瑞利信道中最大幅度分量的衰落量，mpath_amp为信道多径的幅度因子-Simulation of CDMA systems channel, the import requirements of the user sequence and other interference in the signal sequence users superimposed Gaussian white noise, multipath interference interference users and required the user s multipath interference and fading. And in accordance with input delay curve generated channel delay, the output for mul_fad_sequence signal output channel, max_delay to channel the maximum delay, fade_sign Rayleigh channel for the decline of the most significant amount of weight, mpath_amp for multipath channel magnitude factor Platform: |
Size: 2048 |
Author:fisher |
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Description: 多径衰落模型的基本建模，包括多普勒频移，希望对大家有帮助-Multipath fading model for the basic model, including the Doppler shift, in the hope that we have to help Platform: |
Size: 3072 |
Author:莫子初 |
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Description: Full set of MATLAB code to simulate the Multipath fading channel in telecommunication Platform: |
Size: 91136 |
Author:Paria Shahabi |
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Description: this package can simulate a rayleigh multipath fading channel .by running the ,exam.m, the channel will be simulated.,siglfade can simulate a simple rayleigh channel . multipath.m use delay and siglefade to simulate a multiath fading channel. Platform: |
Size: 3072 |
Author:zahra |
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