Search - rayleigh fading channel in ofdm

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[Communication-Mobile] ofdm+matlab DL : 1: 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
Update : 2008-10-13 Size : 2.24kb Publisher : xoaxiao
[Communication-Mobile] ofdm_fading_new DL : 0: 在高斯与一径瑞利衰落信道下对OFDM系统（QPSK调制）的功率普的仿真-in Gaussian with a Rayleigh fading channel right OFDM system (QPSK) Pu Power Simulation
Update : 2008-10-13 Size : 2.73kb Publisher : 陈栩秋
[Communication-Mobile] ofdm+matlab DL : 0: 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
Update : 2025-02-17 Size : 2kb Publisher : xoaxiao
[Communication-Mobile] ofdm_fading_new DL : 0: 在高斯与一径瑞利衰落信道下对OFDM系统（QPSK调制）的功率普的仿真-in Gaussian with a Rayleigh fading channel right OFDM system (QPSK) Pu Power Simulation
Update : 2025-02-17 Size : 2kb Publisher : 陈栩秋
[Post-TeleCom sofeware systems] ostbc DL : 0: This program simulates the bit-error-rate (BER) performance of OSTBC with L=4 antennas over the frequency flat Rayleigh block fading channel The code is developed for real orthogonal design, code rate 1/2 modulation- 16 QAM with gray coding resulting in 2 bits/sec/Hz.-This program simulates the bit-error-rate (BER) performance of OSTBC with L = 4 antennas over the frequency flat Rayleigh block fading channel The code is developed for real orthogonal design, code rate 1/2 modulation-16 QAM with gray coding resulting in 2 bits/sec/Hz.
Update : 2025-02-17 Size : 1kb Publisher : george
[Other] Alamouti DL : 0: 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)
Update : 2025-02-17 Size : 200kb Publisher : 老何
[Other] ofdm_channel_estimation DL : 0: OFDM下的信道估计，在频率选择性rayleigh信道下五条多径下测试，并作出信道估计性能曲线-OFDM under channel estimation in frequency selective Rayleigh fading trail of more than five tests, and channel estimation performance curve
Update : 2025-02-17 Size : 10kb Publisher : 韩聪
[Communication] Thechannelestimationofdelayedfeedbackmimoofdmchann DL : 0: 掌握梳状导频和信道估计算法，实现MATLAB仿真；建立简单的系统结构和信道模型；在含多普勒频移的瑞利衰落信道下，进行含信道估计算法的OFDM系统仿真，并进行性能分析。 -Comb master and pilot channel estimation algorithm, the realization of MATLAB simulation the establishment of a simple system structure and channel model with Doppler frequency shift in the Rayleigh fading channel, the channel estimation algorithm with the OFDM system simulation and performance analysis.
Update : 2025-02-17 Size : 10kb Publisher : 林杉
[matlab] PROGRAMSFolder DL : 0: BER OF OFDM USING BPSK FOR 10 TAP RAYLEIGH FADING CHANNEL-BER OF OFDM USING BPSK FOR 10 TAP RAYLEIGH FADING CHANNEL
Update : 2025-02-17 Size : 7kb Publisher : ravitej
[matlab] OFDM_Rayleigh DL : 0: 3 MATLAB functions for simulation of OFDM signal in Rayleigh fading channel. Including models for OFDM frame generating, cyclic prefix, pramble, as well as model for Rayleigh channel, QAM modulation function and a example of test process.
Update : 2025-02-17 Size : 2kb Publisher : orange_jhy
[matlab] rayleigh-fadeing DL : 0: OFDM信号瑞利衰落信道的matlab仿真，包括一个word文档以及仿真程序。-OFDM signals in Rayleigh fading channel matlab simulation, including a word document as well as the simulation program.
Update : 2025-02-17 Size : 11kb Publisher : daliu
[matlab] BF DL : 0: 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
Update : 2025-02-17 Size : 1kb Publisher : 张群
[Communication-Mobile] script_ber_mimo_zf_sic_bpsk_rayleigh_channel DL : 1: 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)
Update : 2025-02-17 Size : 2kb Publisher : mohanad1
[Program doc] cp_ofdm_simulation DL : 0: Matlab file for simulating a cyclic-prefix (CP) orthogonal-frequency- division-multiplexing (OFDM) system with binary phase-shift keying (BPSK) modulation on each subcarrier. CP-OFDM system includes a repetition code and interleaving across subcarriers as well as a Rayleigh-fading channel model with exponentially decaying power profile.-Matlab file for simulating a cyclic-prefix (CP) orthogonal-frequency- division-multiplexing (OFDM) system with binary phase-shift keying (BPSK) modulation on each subcarrier. CP-OFDM system includes a repetition code and interleaving across subcarriers as well as a Rayleigh-fading channel model with exponentially decaying power profile.
Update : 2025-02-17 Size : 2kb Publisher : 王勇
[matlab] rayleigh DL : 0: OFDM信号瑞利衰落信道的matlab仿真代码，,包括一个word文档和仿真程序。-OFDM signals in Rayleigh fading channel simulation matlab code, including a word document and simulation program.
Update : 2025-02-17 Size : 10kb Publisher : 魏琴
[Other] medelofOFDM DL : 0: 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
Update : 2025-02-17 Size : 571kb Publisher : woailuomo
[Program doc] BERofQOSTBCinRayleighfadingChannel DL : 0: It is a program for Quasi orthogonal space time block codes in Rayleigh fading channel
Update : 2025-02-17 Size : 4kb Publisher : bunny
[Other] Yu DL : 0: — Performance comparison of multiuser OFDM-TDMA and OFDMA systems by considering physical and link cross-layer behavior is conducted in this work. We provide a new framework for performance evaluation that centers on “ scheduling” with several different subcarrier/bit allocation schemes. The performance metrics include: the bit rate, the bit error rate (BER), packet throughput and delay. The instantaneous channel conditions of users are assumed to be available at the base station, which can be achieved by channel estimation at the mobile terminal (MT), and then fed back to the base station through a control channel. To perform the link layer comparison, we model the Rayleigh fading channel with a nite-state Markov chain, and adopt the M/G/1 queueing model as the analytical tool. Computer simulation is performed to verify conducted analytical results-— Performance comparison of multiuser OFDM-TDMA and OFDMA systems by considering physical and link cross-layer behavior is conducted in this work. We provide a new framework for performance evaluation that centers on “ scheduling” with several different subcarrier/bit allocation schemes. The performance metrics include: the bit rate, the bit error rate (BER), packet throughput and delay. The instantaneous channel conditions of users are assumed to be available at the base station, which can be achieved by channel estimation at the mobile terminal (MT), and then fed back to the base station through a control channel. To perform the link layer comparison, we model the Rayleigh fading channel with a nite-state Markov chain, and adopt the M/G/1 queueing model as the analytical tool. Computer simulation is performed to verify conducted analytical results
Update : 2025-02-17 Size : 163kb Publisher : alaa
[Program doc] The-simulation-of-OFDM-systems DL : 0: 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.
Update : 2025-02-17 Size : 232kb Publisher : zhanpeng
[matlab] BPSK--OFDM DL : 0: 该程序为在瑞利衰落信道下，OFDM系统采用FFT和IFFT实现多载波调制。-The program is in the Rayleigh fading channel, the OFDM system uses FFT and IFFT to achieve multi-carrier modulation.
Update : 2025-02-17 Size : 5kb Publisher : 秦定本

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