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硕士学位论文:LDPC码在瑞利衰落信道中的性能分析
信道编码技术可以带来编码增益,节省宝贵的功率资源,己经成为现代数字
通信系统中必不可少的关键技术。LDPC码采用低复杂度的迭代译码算法,且具有
逼近香农限的性能.由于LDPC码具有诸多优点,它在信息可靠传输中的良好应
用前景己经引起学术界和rr业界的高度重视,成为当今信道编码领域最受瞩目的
研究热点之一。
本文主要探讨了LDPC码在瑞利衰落信道中的性能,基于LDPC码的分组空
时码系统,以及基于LDPC码的正交频
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wireless Communication, RAYLEIGH FADING CHANNEL CAPACITY AND ANNALYSE
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通信系统中,采用QPSK调制方式,对瑞利衰落信道的仿真-By using QPSK modulation, simulate the Rayleigh fading channel in communication system
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对通信中多径衰落信道,瑞利衰落信道仿真,BPSK,PAM信道频谱计算等等。-Pairs of communication multipath fading channel, Rayleigh fading channel simulation, BPSK, PAM-channel spectrum calculation and so on.
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通信系统离散信道仿真,散射、离散多径信道衰落模型mfiles-Communication system discrete channel simulation, scattering/discrete multipath fading channel matlab mfiles
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文件包含bpsk,qam,在awgn和瑞利信道下的仿真,可以运行适合通信研究人员使用。-File contains bpsk, qam, in awgn and Fading Channel simulation, you can run for communication researchers.
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mobile communication describing channel fading of signal-mobile communication describing channel fading of signal
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本程序是用MATLAB编写的用于仿真通信系统中信号经过QPSSK和16QAM调制后,通过高斯白噪声和瑞利衰落信道的星座图仿真
-This program is a simulation of communication systems using MATLAB for signal through QPSSK and 16QAM modulation constellation of white Gaussian noise and Rayleigh fading channel simul
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对通信多径分析的SIMULINK文件,可仿真多径、信道衰落等。-SIMULINK file communication multipath analysis, simulation multipath channel fading, etc.
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两天线的通信系统,包含空时码的编解码程序源码,和与HARQQ结合的传输方案代码,信道为准静止的瑞丽衰落信道 可直接使用。
-The two antennas of the communication system, source of the codec program code contains a null, transmission program code and combined with HARQQ the, channel prevail stationary Ruili fa
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自适应均衡器的LMS算法实现及其仿真 :自适应均衡器已广泛应用于通信、雷达、声纳、控制和生物医学工程等许多领域,为克服多径衰落和信道失真引起的的码间干扰,实时跟踪移动通信信道的时变特性,笔者设计了一个基于LMS 算法的自适应线性均衡器,并通过改变步长因子Δ来分析其收敛速度和均方误差特性.
-Adaptive equalizer LMS algorithm and its simulation: adaptive equalizer has been widely used in commun
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介绍关于在通信信道中的衰落和仿真,比较调制后的信号进入信道后受到的干扰-Descr iption on the fading, and emulation of the communication channels, compare the modulated signal into the channel by interference
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DS-CDMA通信系统,扩频码包括M序列。GOLD,正交GOLD,Gray规则瑞利衰落信道,多用户,统计误码率。,DS-CDMA communication system, the spreading codes including an M sequence. GOLD, orthogonal GOLD, Gray rules Rayleigh fading channel, multi-user, the statistical error rate.
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简化的DS-CDMA通信系统仿真,数据流和时间流均可.码元速率256ksps,调制方式QPSK,扩频码为m序列或GOLD序列,信道为加性高斯信道和瑞利衰落信道两种,其他参数自己设定。-Simplified DS-CDMA communication system simulation, data flow and the flow of time can be. Symbol rate 256ksps, modulation QPSK, m-sequence spread-spectrum co
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基于Matlab的MIMO通信系统仿真。MIMO:发送端和接收端同时使用多天线来抑制信道衰落,从而大幅度地提高信道容量、抗衰落性能和频谱利用率。基本要求。2*2 STBC的实现关于分集增益的分析
弹性要求与一发多收系统的比较(最大比合并):分集增益、信噪比损失多个天线(>2)STBC实现(例如4*4)-Matlab simulation of the MIMO communication system. MIMO: sending and receiving ends simultan
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在多径瑞利衰落信道下,采用理想信道估计,Rake接收,仿真该系统在不同SNR下的信源误比特率性能,分析系统性能-In multipath Rayleigh fading channels, using the ideal channel estimation, Rake reception, simulation of the system at the source under different SNR BER performance, analyze system performance
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高移动性的宽带无线通信会受到时频双选择性衰落的严重影响。信道估计的质量对于整个系统的性能具有重要的影响,尤其是当信道经历快速的衰落时。因此,高质量的双选信道估计是高速无线通信的必然要求。 -Broadband wireless communication will be affected by the high mobility of time-frequency doubly selective fading. The quality of channel estimation has an
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单径或多径瑞利衰落信道仿真,搭建OFDM通信系统的框架,最终的权值矩阵就是滤波器的系数。- Single path or multipath Rayleigh fading channel simulation, Build a framework OFDM communication system, The final weight matrix is ??the filter coefficient.
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数字通信OFDM实验,高斯信道瑞丽信道下仿真 以及信道衰落模型-Digital communications OFDM experiment, ruili channel simulation under gaussian channel and the channel fading model
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Various channel fading in the field of wireless communication
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