Description: 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码的正交频分复用系统.-master's degree thesis : LDPC codes in Rayleigh fading channels Performance Analysis channel coding technology can bring coding gain, Power saving valuable resources have become modern digital communication systems essential to the critical technologies. LDPC low complexity of the iterative decoding algorithm, having approximation Shannon limit performance. Because LDPC has many advantages, It reliable transmission of information in the application of good prospects has been caused rr academia and industry are taking, become the channel coding areas of the most watched one of the hot spots. This paper mainly discusses the LDPC Rayleigh fading channels in the performance Based on LDPC a space-time coding system, and based on LDPC orthogonal frequency division multiplexing system. Platform: |
Size: 2362368 |
Author:daniel |
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Description: FLASH教学，包含内容：电路交换，分组交换，路由器工作原理，频分复用，时分复用，统计时分复用，虚拟局域网，中继器，网桥工作原理等。精彩形象，好东西不容错过，快来下载-FLASH teaching, including : circuit-switched, packet-switched, routers principle, frequency division multiplexing, TDM, TDM statistics, virtual LAN repeaters, bridges, and so on principle. Excellent image, good things not to be missed, Come Download Platform: |
Size: 525312 |
Author:lixm |
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Description: Orthogonal Frequency Division Multiplexing(OFDM) signal simulation-Orthogonal Frequency Division Multiplex ing (OFDM) signal simulation Platform: |
Size: 1024 |
Author:Weikai Shen |
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Description: 基于matlab的时分复用和频分复用的方针-based on the time division multiplexing Matlab and frequency division multiplexing approach Platform: |
Size: 1024 |
Author:的地方 |
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Description: This paper is" a technique for orthogonal frequency division multiplexing frequency offset correction which wrote by H.Moose Platform: |
Size: 620544 |
Author:Tony |
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Description: 正交频分复用中当调制方式采用QDPSK时的解调程序-Orthogonal frequency division multiplexing modulation when used in QDPSK procedures at the time of demodulation Platform: |
Size: 2048 |
Author:NANA |
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Description: 正交频分复用基于IEEE802.11a的PTA跟踪法，同学自己编的，较复杂，运用了锁相环-Orthogonal frequency division multiplexing IEEE802.11a-based tracking method of the PTA, the students made their own, and more complex, using a phase-locked loop Platform: |
Size: 1024 |
Author:kongnan |
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Description: 利用mablab编写的m文件，用于频分复用的仿真，非常有用，大家可以下载实验一下-M prepared to use mablab documents, for frequency division multiplexing of the simulation, very useful, everyone can download the experiment about Platform: |
Size: 18432 |
Author:奚冲霄 |
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Description: 此程序是关于OFDM（正交频分复用）同步中信道响应的程序-This procedure is on the OFDM (Orthogonal Frequency Division Multiplexing) channel synchronization in response to the procedure Platform: |
Size: 2048 |
Author:郭振红 |
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Description: 完整的OFDM链路程序并作了较为具体的解析从基本的bpsk,qpsk,qam到实际的ofdm系统，cdma链路，mac层仿真分析.-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. Platform: |
Size: 160768 |
Author:田静 |
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Description: A MATLAB program has been written to investigate Orthogonal Frequency Division
Multiplexing (OFDM) communication systems. This program is valuable for future researchers
simulating systems that are too theoretically complex to analyze. Single-carrier QAM and multicarrier
OFDM are compared to demonstrate the strength of OFDM in multipath channels. Two
graphical user interface demonstrations show some of the basic concepts of OFDM. Platform: |
Size: 950272 |
Author:king |
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Description: This paper deals with the capacity behavior of wireless Orthogonal Frequency Division Multiplexing
(OFDM)-based spatial multiplexing system when considering realistic channel delay profiles.
In both the SISO and the MIMO contexts, we compare the deterministic, ergodic and outage
capacities for the channel with realistic profile to the one with simplified profile Platform: |
Size: 153600 |
Author:Safa |
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Description: OFDM(Orthogonal frequency-division multiplexing)意即正交頻分複用技術對頻率偏移極為敏感,初期皆以導引信號作為偵測.
後期則著重在盲通道估測~此兩篇論文是盲通道的技術~有助於你學習更多知識
-OFDM (Orthogonal frequency-division multiplexing) means orthogonal frequency division multiplexing frequency offset pairs are extremely sensitive to begin with the initial guidance as to detect the signal. The later focus on the blind channel estimation ~ The two papers is a blind channel Technical ~ help you learn more knowledge Platform: |
Size: 815104 |
Author:Dephiroth |
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Description: 选择五个不同频段的信号对其进行频谱分析，根据信号的频谱特征设计五个不同的数字滤波器，将五路信号合成一路信号，分析合成信号的时域和频域特点，然后将合成信号分别通过设计好的五个数字滤波器，分离出原来的五路信号，分析得到的五路信号的时域波形和频谱，与原始信号进行比较，说明频分复用的特点。-To select one of five different band signal spectrum analysis and design of five different digital filter based on the spectral characteristics of the signal, the the Rd signal synthesizing all the way to the signal analysis in time domain and frequency domain characteristics of the synthesized signal, and then the synthesis signal by five digital filter designed, separated original signal Rd, the time-domain waveform and spectrum analysis the Rd signal is obtained, to be compared with the original signal, the frequency division multiplexed with the characteristics. Platform: |
Size: 7168 |
Author:王峰 |
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Search - frequency division multiplexing