Search - multi path

[Communication-Mobile] ofdm_multipath

Description: 多径信道下的ofdm仿真系统，包括编码，映射，交织，调制。信道估计采用判决反馈方法。-multi-path channel under the ofdm simulation system, including coding, mapping, interleaving, modulation. Channel estimated that the decision feedback methods.
Platform: | Size: 24576 | Author: gengxuan | Hits:

[WEB Code] scriptfile

Description: 对有3条固定路径的AWGN多径信道中的QPSK系统进行BER性能仿真，并与在理想的AWGN信道（没有多径）中同样系统地BER性能进行比较-to have three fixed path over the AWGN Channel QPSK BER performance system simulation, and with the ideal AWGN channel (multi-path) to the same system BER performance comparison
Platform: | Size: 5120 | Author: xiecao | Hits:

[Communication-Mobile] DS_uwbprogram

Description: 关于simu1: 在simlink运行之前的初始化过程中，完成了信道时延和幅度的估计，多径合成权系数估计多径合成采用可选EG/MR/MMSE合成信道可选白噪声信道AWGN和IEEE80.215.3a UWB标准信道模型(CM1-CM4)但为了简化，这里采用了IEEE80.215.3a给出了信道模型中的仿真数据包(如果你是作超宽带的，信道模型程序和数据可从IEEE80.215.3a网站获取) 和大部分仿真一样，模型中的Eb/No指的是单比特信息符号携带的能量和噪声的比例，监督的讲，在AWGN信道中，Eb/No为4.31db时,误码率0.01 关于zslsimu直接运行simuuwb.m可看到结果) 显然和simu1一样，只是增加了.m文件，修改.m文件中的重要参数:多径数、PN序列长度、PN序列、单个信息码元宽度Tb(单位ns)、每个脉冲宽度Tc(单位ns)、系统的仿真精度Ts(单位ns)、仿真时间 chanidx=1:1是因为考虑信道数据文件太大，不好上传，想得到精确的仿真，同一个信道类型(chantype)，最好仿真100次实现，信道文件可由UWB标准组织下载-on simu1 : simlink operation before the initialization process, completed the channel delay and the magnitude of the estimates, Multi-Path weights estimated Drive synthesis using the optional EG/MR/Synthesis MMSE Channel optional white noise channel AW GN and IEEE80.215.3a UWB channel model (CM1- CM4) in order to simplify IEEE80.215.3a used here is a channel model for the simulation data packets (if you were for extra-wide belt, channel model and data from IEEE80.215.3a website access) and most simulation, Model of Eb/No refers to the single-bit symbols to carry the message of energy and noise ratio, supervision speaking, In AWGN channel, Eb/No for 4.31db, BER 0.01 zslsimu directly on the operation simuuwb.m can see the result) clearly and si mu1, only increased. m document change
Platform: | Size: 39936 | Author: 海涛 | Hits:

[Modem program] qpskjm

Description: 通信中的QPSK相位调制建摸，其中考虑了多径和高斯的影响-Communication QPSK modulation phase modeling, which takes into account the multi-path effects and Gaussian
Platform: | Size: 4096 | Author: 张一 | Hits:

[matlab] CDMA_path_sim

Description: 该函数仿真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-the CDMA system simulation function of the channel, required users to import sequences and sequences of other users after the interference signal superimposed on the white Gaussian noise, Users interference and multi-path interference for users of multi-path interference and fading. Enter the delay under the curve Channel delay, mul_fad_sequence output of channel signal output, max_delay to channel the maximum delay, fade_sign Rayleigh Channel for the most significant component of the volume decline mpath_amp to channel more Drive rate factor
Platform: | Size: 2048 | Author: 刘洪 | Hits:

[Communication] simcdma

Description: 完整的CDMA各种参数的仿真，包括上行链路的BER，多径干扰下的BER，多径下用户数目的BER等-integrity of the CDMA simulation of various parameters, including the uplink BER, multi-path interference under the BER, Drive over the next number of users, such as BER
Platform: | Size: 16384 | Author: 于蕾 | Hits:

[Internet-Network] ns2.28MAODV

Description: 在ns2.28中实现的多路径路由协议M-AODV-ns2.28 achieve in the multi-path routing protocol M-AODV
Platform: | Size: 452608 | Author: | Hits:

[GIS program] k-shortpath

Description: 本程序是K条最短路算法测试程序,陈艳艳老师的K条路算法。程序求3条最短路，约束条件值可以设定,约束值越小，多路径共用路段越多。-Article K of the procedure is the shortest path algorithm to test procedures, Yan-Yan Chen K teacher path algorithm. Procedures for the three short-circuit, constraints can be set value, the smaller the value constraint, multi-path section of the more common.
Platform: | Size: 105472 | Author: 马踏 | Hits:

[matlab] rayleigh

Description: 1、Rayleigh_Doppler_singlePath.m 产生单径Rayleigh衰落，采用了6种方法并进行了比较，推荐使用第6种方法； 2、Rayleigh_Doppler_multiPath.m 根据多条径的延时和强度，产生频率选择性衰落；在单径和多径两个程序中，均提供了其功率谱的输出代码； -1, Rayleigh_Doppler_singlePath.m Single Path Rayleigh fading generated using the six kinds of methods and compared recommend using the first six kinds of methods 2, Rayleigh_Doppler_multiPath.m Drive under a number of delay and intensity, resulting in frequency selective fading in single-track and multi-path two procedures, which provide the power spectrum of the output code
Platform: | Size: 9216 | Author: george | Hits:

[matlab] fade

Description: 包括DS-CDMA 的衰落信道函数，多径衰落信道以及快衰落信道函数。-Including DS-CDMA in fading channel function, multi-path fading channel and fast fading channel function.
Platform: | Size: 2048 | Author: 秦丽 | Hits:

[Internet-Network] DSRmultipath

Description: 多路径DSR，静态添加多路径（对于相同目的节点的相同长度路径）-Multi-path DSR, add a static multi-path (for the same purpose the same as the length of the path node)
Platform: | Size: 2048 | Author: 曾志勇 | Hits:

[Communication-Mobile] threeray

Description: 仿真具有三条固定信道的AWGN多径信道的QPSK系统的BER性能，并与理想信道进行比较-The simulation has three fixed AWGN channel multi-path channel of QPSK system BER performance and the ideal channel for comparison
Platform: | Size: 3072 | Author: wowoo | Hits:

[Communication-Mobile] works

Description: QPSK系统在无线通信信道中的仿真,通过对有若干条（大于2条）路径的无线多径衰落信道中的QPSK系统进行误码率性能仿真，并在与理想的高斯加性白噪声信道中同样系统的BER性能进行比较，利用SA方法给出本仿真模型的仿真结果-QPSK system in the wireless communications channel simulation, through a number of articles (more than 2) the path of wireless multi-path fading channel QPSK system BER performance simulation, and at high places like the ideal of white noise channel BER performance of the same system for comparison, using SA method give the simulation model of the simulation results
Platform: | Size: 2048 | Author: andy | Hits:

[Other] aomdv

Description: wireless routing protocol implement on ns2,扩展aodv路由协议成为多路径路由协议-wireless routing protocol implement on ns2, extended aodv routing protocol as multi-path routing protocol
Platform: | Size: 51200 | Author: jysun | Hits:

[Internet-Network] 1

Description: 移动adhoc网络协议的特点，dsr与aodv协议仿真与分析，基于多路径adhoc路由协议稳定性分析，数学模型，mdsr协议仿真-Mobile adhoc network protocol characteristics, dsr aodv agreement with the simulation and analysis of adhoc routing protocol based on multi-path stability analysis, mathematical model, mdsr Protocol Simulation
Platform: | Size: 694272 | Author: 刘畅 | Hits:

[Linux-Unix] 123455

Description: 基于dsr多路径路由比较，文章中介绍了3种dsr多路径路由算法，adhoc网络-Multi-path routing based on dsr comparison, the article describes three kinds of dsr multi-path routing algorithm, adhoc networks
Platform: | Size: 112640 | Author: 陈淼 | Hits:

[Industry research] An_Improveme_of_LEACH_Routing_Protocol_Based_on_T

Description: Abstract—LEACH is a hierarchy routing protocol for WSN (wireless sensor networks), which is superior to direct communication protocol, minimum-transmission-energy protocol and static clustering protocol. owever, LEACH itself has some defects. In this paper LEACH-TM introduces the concept of Trust, designs the cluster-head adjusting procedure and establishes multi-path with cluster-heads ting as routers.The simulation illustrates that LEACH-TM makes much progress in the reliability of data transmission, the tribution of cluster heads and the lifetime of networks.-Abstract—LEACH is a hierarchy routing protocol for WSN (wireless sensor networks), which is superior to direct communication protocol, minimum-transmission-energy protocol and static clustering protocol. owever, LEACH itself has some defects. In this paper LEACH-TM introduces the concept of Trust, designs the cluster-head adjusting procedure and establishes multi-path with cluster-heads ting as routers.The simulation illustrates that LEACH-TM makes much progress in the reliability of data transmission, the tribution of cluster heads and the lifetime of networks.
Platform: | Size: 266240 | Author: Amir | Hits:

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