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[Software Engineering] Investigation-on-Simulation2Number-in-AWGN-Channel DL : 0: 摘要: 研究了蒙特卡罗仿真原理和仿真结果置信度结合AWGN(加性白高斯噪声) 信道特点,甄选出3 个合适的参量,即误码个数、置信概率和仿真结果最大相对误差提出了AWGN 信道下仿真数据量选取的一般性结论,即误码个数正比于置信区间上分位点的平方、反比于最大相对误差的平方. 仿真结果验证了所提结论在AWGN 信道各种信噪比下均有效同时对于无线通信或移动通信的时变多径衰落信道,如采用OFDM(正交频分复用) 、分集、均衡、交织等技术,能将信道改造为AWGN 信道,该结论依然有效. 关　键　词: 加性白高斯噪声蒙特卡罗仿真仿真数据量置信概率
Date : 2008-10-13 Size : 186.72kb User : 子羽
[Software Engineering] Investigation-on-Simulation2Number-in-AWGN-Channel DL : 0: 摘要: 研究了蒙特卡罗仿真原理和仿真结果置信度结合AWGN(加性白高斯噪声) 信道特点,甄选出3 个合适的参量,即误码个数、置信概率和仿真结果最大相对误差提出了AWGN 信道下仿真数据量选取的一般性结论,即误码个数正比于置信区间上分位点的平方、反比于最大相对误差的平方. 仿真结果验证了所提结论在AWGN 信道各种信噪比下均有效同时对于无线通信或移动通信的时变多径衰落信道,如采用OFDM(正交频分复用) 、分集、均衡、交织等技术,能将信道改造为AWGN 信道,该结论依然有效. 关　键　词: 加性白高斯噪声蒙特卡罗仿真仿真数据量置信概率-err
Date : 2026-01-07 Size : 187kb User : 子羽
[Software Engineering] MIMO_OFDM_technolgy DL : 0: 详细介绍下一代移动通信系统MIMO_OFDM的若干关键技术研究,包括信道估计,自适应的详细原理与仿真,值的借鉴-Detailed introduction of next generation mobile communication system MIMO_OFDM a number of key technology research, including channel estimation, adaptive principle and the detailed simulation, the reference value
Date : 2026-01-07 Size : 5mb User : 何灵
[Software Engineering] lse DL : 0: OFDM based on the massive pilot channel estimation algorithm simulation, including the LS estimation algorithm Analysis of LSE
Date : 2026-01-07 Size : 4kb User : ye
[Software Engineering] practisereport DL : 0: OFDM(正交频分复用)技术实际上是MCM(Multi-Carrier Modulation，多载波调制)的一种。其主要思想是，将信道分成若干正交子信道，将高速数据信号转换成并行的低速子数据流，调制到在每个子信道上进行传输。正交信号可以通过在接收端采用相关技术来分开，这样可以减少子信道之间的相互干扰(ICI)。每个子信道上的信号带宽小于信道的相关带宽，因此每个子信道上的可以看成平坦性衰落，从而可以消除符号间干扰。而且由于每个子信道的带宽仅仅是原信道带宽的一小部分，信道均衡变得相对容-OFDM (Orthogonal Frequency Division Multiplexing) technology is MCM (Multi-Carrier Modulation, multi-carrier modulation) is. The main idea is to channel into a number of orthogonal sub-channel, high-speed data signals into sub-parallel low-speed data streams, modulation in the transmission on each channel. Orthogonal signal at the receiving end through the use of related technologies to separate, thus reducing the mutual interference between the channel (ICI). Each channel on the signal bandwidth is less than the relevant channel bandwidth on each channel of the decline can be seen as flat, make it possible to eliminate inter-symbol interference. And because of the bandwidth of each channel is the original channel only a small portion of bandwidth, channel capacity become relatively balanced
Date : 2026-01-07 Size : 85kb User : siren
[Software Engineering] 11-06-0979-00-0wng-mimo-ofdm-beamforming DL : 0: MIMO-OFDM Beamforming for Improved Channel Estimation in 802.11n WLAN
Date : 2026-01-07 Size : 99kb User : bailixia
[Software Engineering] DesignandDSPrealizationofan0FDMreceiver DL : 0: 设计了一个OFDM接收机，并采用1fI公司的TMS320C6416芯片进行实现。在假设理想同步的前提下，该系统进行了FFT变化、使用了Ls(最小二乘法)进行信道估计，并且采用了 QPSK算法进行解调。最后将接收机输出数据与发端数据进行比较，在不同信噪比情况下计算其误码率，得出了比较理想的结果。-An OFDM receiver is designed in山is paper and realized on the platform of the 1MS32OC6416 chip of the TI company．Under the assumption of ideal synchronization．n叩transformation is realized in the system wit}l LS method implemented in the channel estimation module and QPSK used in the demodulation module． Finally，BER is calculated in different cases of SNR and the result is achieved as expected．
Date : 2026-01-07 Size : 238kb User : 王熹
[Software Engineering] ofdm_bpsk_fading DL : 0: OFDM with BPSK in Fading Channel.
Date : 2026-01-07 Size : 1kb User : Lulala
[Software Engineering] svd_lmmse DL : 0: OFDM系统中基于奇异值分解降秩的MMSE信道估计算法，非常经典-OFDM channel estimation by singular value decomposition.pdf
Date : 2026-01-07 Size : 173kb User : anne
[Software Engineering] OFDM_cognitive DL : 0: 博士学位论文，详细探讨基于OFDM的认知无线电系统信道及频谱感知-Channel, spectrum, and waveform awareness in OFDM-based cognitive radio systems.pdf
Date : 2026-01-07 Size : 1.37mb User : anne
[Software Engineering] OFDM_channel_estimation_and_system_simulation_pape DL : 0: 十篇关于OFDM的论文，其中两篇为学位论文，内容涉及OFDM习题信道估计的研究仿真，软硬件仿真，信道估计算法优化以及基于MATLAB的系统仿真分析~~ -10 papers on OFDM, in which two for the dissertation, which relates to OFDM channel estimation of exercise simulation, hardware and software simulation, optimization and channel estimation algorithm for systems based on MATLAB simulation ~ ~
Date : 2026-01-07 Size : 5.61mb User : gongshulei
[Software Engineering] 12 DL : 0: 多径瑞丽衰落信道下OFDM系统仿真多径瑞丽衰落信道下OFDM系统仿真-Ruili multipath fading channel OFDM system simulation multipath fading channel Ruili OFDM System Simulation
Date : 2026-01-07 Size : 332kb User : 沈岗
[Software Engineering] MIMO-OFDM DL : 0: 这是一个基于空时分组编码的MIMO_OFDM通信系统的仿真设计,此系统包括QPSK调制解调，IFFT调制，空时编解码，基于训练符号的信道估计等通信模块。 -This is a space-time block coding based on the MIMO_OFDM communication system simulation design, this system consists of QPSK modulation and demodulation, IFFT modulation, space-time coding and decoding, symbol-based channel estimation training and other communication module.
Date : 2026-01-07 Size : 4kb User : 邓昌文
[Software Engineering] RTL8191SU DL : 0: For legacy compatibility, Direct Sequence Spread Spectrum (DSSS), Complementary Code Keying (CCK) and OFDM baseband processing are included to support all IEEE 802.-RTL8191SU RTL8191SU RTL8191SU
Date : 2026-01-07 Size : 4kb User : hugo
[Software Engineering] OFDM-Channel-Estimation-MATLAB-Code DL : 0: OFDM系统中的基于导频信号的信道估计，非常适合与初学者使用！-OFDM system based on pilot signal channel estimation, very suitable for beginners!
Date : 2026-01-07 Size : 7kb User : qqnmd
[Software Engineering] frequencyPdomainPforPMIMO-OFDM DL : 0: mimo-ofdm系统中信道容量估计的分析和仿真，很详细-Analysis and Simulation of channel capacity estimation in MIMO-OFDM system, a very detailed
Date : 2026-01-07 Size : 347kb User : 杨旭
[Software Engineering] on-the-modulation-technology-in-OFDM DL : 0: 在 OFDM 数学原理和收发模型的基础上，本文对帧同步、定时同步、频率同步和采样同步给 OFDM 系统所产生的影响进行了理论分析，同时讨论了基于循环前缀或训练符号的典型 OFDM 同步算法。参考 802.11a 突发数据帧结构和系统参数，分析几种 OFDM 同步算法用于突发分组传输的性能；在分析了几种经典的信道估计算法基础上,通过对复杂度和性能的折衷，选择一种适合本文系统的估计算法。最后作者提出一种改进型 LS 信道估计算法，该算法考虑了 LS 算法中噪声的影响，从而提高了低信噪比下信道估计的精度。仿真结果表明，改进算法在低信噪比下具有良好的性能。 -OFDM mathematical principles and transceiver model based on frame synchronization, timing synchronization, frequency synchronization and sampling synchronization to the OFDM system, the impact of the theoretical analysis are also discussed based on the cyclic prefix or training symbols typical OFDM synchronization algorithm . Reference 802.11a burst data frame structure and system parameters, analyze several OFDM synchronization algorithm for burst packet transmission performance several classic channel estimation algorithm based on a compromise between complexity and performance, select a suitable estimation algorithm in this article. Finally, the author proposed a modified LS channel estimation algorithm that takes into account the effects of noise in the LS algorithm, thus improving the low SNR channel estimation accuracy. Simulation results show that the improved algorithm has good performance in low signal-to-noise ratio.
Date : 2026-01-07 Size : 8.33mb User : 刘金强
[Software Engineering] OFDM-Sim-Using-Matlab DL : 0: Orthogonal frequency division multiplexing (OFDM) is becoming the chosen modulation technique for wireless communications. OFDM can provide large data rates with sufficient robustness to radio channel impairments. Many research centers in the world have specialized teams working in the optimization of OFDM for countless applications. Here, at the Georgia Institute of Technology, one of such teams is in Dr. M. A. Ingram’s Smart Antenna Research Laboratory (SARL), a part of the Georgia Center for Advanced Telecommunications Technology (GCATT). The purpose of this report is to provide Matlab code to simulate the basic processing involved in the generation and reception of an OFDM signal in a physical channel and to provide a description of each of the steps involved. For this purpose, we shall use, as an example, one of the proposed OFDM signals of the Digital Video Broadcasting (DVB) standard for the European terrestrial digital television (DTV) service.-Orthogonal frequency division multiplexing (OFDM) is becoming the chosen modulation technique for wireless communications. OFDM can provide large data rates with sufficient robustness to radio channel impairments. Many research centers in the world have specialized teams working in the optimization of OFDM for countless applications. Here, at the Georgia Institute of Technology, one of such teams is in Dr. M. A. Ingram’s Smart Antenna Research Laboratory (SARL), a part of the Georgia Center for Advanced Telecommunications Technology (GCATT). The purpose of this report is to provide Matlab code to simulate the basic processing involved in the generation and reception of an OFDM signal in a physical channel and to provide a description of each of the steps involved. For this purpose, we shall use, as an example, one of the proposed OFDM signals of the Digital Video Broadcasting (DVB) standard for the European terrestrial digital television (DTV) service.
Date : 2026-01-07 Size : 369kb User : lemaster
[Software Engineering] ofdm DL : 0: Based on the principle of OFDM system, the paper mainly includes the following aspects: the development of mobile communications, the characteristics of the radio channel, OFDM system theory, the advantages and disadvantages, key technologies, and adaptive technology of the OFDM technologies.Next, the OFDM symbol function, time domain and frequency domain model is analyzed detailed by some basic knowledge, some basic knowledge of Convex optimization problem.-Based on the principle of OFDM system, the paper mainly includes the following aspects: the development of mobile communications, the characteristics of the radio channel, OFDM system theory, the advantages and disadvantages, key technologies, and adaptive technology of the OFDM technologies.Next, the OFDM symbol function, time domain and frequency domain model is analyzed detailed by some basic knowledge, some basic knowledge of Convex optimization problem.
Date : 2026-01-07 Size : 63kb User : znp
[Software Engineering] Channel- DL : 0: OFDM系统中的信道估计和均衡使用反向传播神经网络。-Channel estimation and equalization using backpropagation neural networks in OFDM systems.
Date : 2026-01-07 Size : 623kb User : Johnson

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