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: 2362694 |
Author:daniel |
Hits:
Description: stbc在2发2收，4发4收的性能仿真
一个编码译码程序。
有仿真结果图。-stbc made two in 2 admission, made 4 of 4 admission a performance simulation code decoding procedures. A Simulation results. Platform: |
Size: 57344 |
Author:秦 |
Hits:
Description: 这是一个无线通信空时码仿真程序，编码数据形成流进行同步传输，采用的是最大似然译码。-This is a wireless communications space-time simulation codes, encoding data flow synchronization formed transmission, using the maximum- likelihood decoding. Platform: |
Size: 2048 |
Author:ltj1974 |
Hits:
Description: 包括八天线准正交空时码的编码和解码函数，满速率部分分集增益，解码包括部分行的解码-Including eight antenna quasi-orthogonal space-time codes of encoding and decoding functions, full diversity gain some speed, decoding including some line decoder Platform: |
Size: 1024 |
Author:谷雨 |
Hits:
Description: 一个2*1的MIMO系统，采用BPSK调制，空时分组码STTC编码，即ALIMOUTI编码方法。接收端相应解码，挺简单，仿真结果很好。-A 2* 1 of MIMO systems using BPSK modulation, space-time block codes STTC encoding, that is, coding method ALIMOUTI. The corresponding receiver decoding, very simple, very good simulation results. Platform: |
Size: 1024 |
Author:李静 |
Hits:
Description: 此为采用基于正交空时编译码的2*1与2*2天线发射接收系统性能仿真。-This is based on orthogonal space-time encoding and decoding of the 2* 1 and 2* 2 antenna transceiver system performance simulation. Platform: |
Size: 16384 |
Author:张璇 |
Hits:
Description: 一本讲宽带无线系统的空时编码技术的电子书，详细介绍了空时编码的编译码算法，以及其在OFDM等系统中的应用。-Talk about a broadband wireless system technology, space-time coding e-books, details of the encoding and decoding space-time coding algorithms, as well as its OFDM and other systems. Platform: |
Size: 629760 |
Author:fisher |
Hits:
Description: 该程序用matlab实现的，用来对图形图像进行Space-Time-Trellis-Code编解码，以达到压缩的目的！-The program achieved using matlab to graphic images of the Space-Time-Trellis-Code coding and decoding, in order to achieve the purpose of compression! Platform: |
Size: 8192 |
Author:马行空 |
Hits:
Description: 空时分组码性能仿真，包含空时分组码的编译码方法和信噪比仿真。-Space-time block code performance simulation, including space-time block code encoding and decoding methods, and signal to noise ratio simulation. Platform: |
Size: 20480 |
Author:李志 |
Hits:
Description: 进行空时分组码的编译码仿真，仿真出不同信噪比下的性能，得出误码率曲线。-For space-time block code encoding and decoding simulation, simulation performance under different signal to noise ratio obtained BER curves. Platform: |
Size: 5120 |
Author:李志 |
Hits:
Description: HELP: coherent_ML_receiver
function [separated_data]=coherent_ML_receiver(received_signal,H,code_name,rate,num_code,modulator)
Perform Maximum Likelihood Space Time Decoding. The function can be
computionnaly expensive if the modulation order is too large.
Input: - received signal
- channel matrix: H
- code_name: The code name ( Alamouti , OSTBC3 ,...)
- code_rate: The code rate ( 1 , 1/2 ,...)
- num_code: The code number (1,2,...)
- modulator object
Ouput: - separated data
Note: This function requires the Matlab Communication Toolbox
Reference:
[1]E.G. Larsson,P.Stoica. "Space-time block coding for wireless
communications", Cambridge Press,2003
- HELP: coherent_ML_receiver
function [separated_data]=coherent_ML_receiver(received_signal,H,code_name,rate,num_code,modulator)
Perform Maximum Likelihood Space Time Decoding. The function can be
computionnaly expensive if the modulation order is too large.
Input: - received signal
- channel matrix: H
- code_name: The code name ( Alamouti , OSTBC3 ,...)
- code_rate: The code rate ( 1 , 1/2 ,...)
- num_code: The code number (1,2,...)
- modulator object
Ouput: - separated data
Note: This function requires the Matlab Communication Toolbox
Reference:
[1]E.G. Larsson,P.Stoica. "Space-time block coding for wireless
communications", Cambridge Press,2003
Platform: |
Size: 1024 |
Author:dasu |
Hits:
Description:
function [separated_data]=coherent_ML_receiver(received_signal,H,code_name,rate,num_code,modulator)
HELP: coherent_ML_receiver
Perform Maximum Likelihood Space Time Decoding. The function can be
computionnaly expensive if the modulation order is too large.
Input: - received signal
- channel matrix: H
- code_name: The code name ( Alamouti , OSTBC3 ,...)
- code_rate: The code rate ( 1 , 1/2 ,...)
- num_code: The code number (1,2,...)
- modulator object
Ouput: - separated data
Note: This function requires the Matlab Communication Toolbox
Reference:
[1]E.G. Larsson,P.Stoica. "Space-time block coding for wireless
communications", Cambridge Press,2003-
function [separated_data]=coherent_ML_receiver(received_signal,H,code_name,rate,num_code,modulator)
HELP: coherent_ML_receiver
Perform Maximum Likelihood Space Time Decoding. The function can be
computionnaly expensive if the modulation order is too large.
Input: - received signal
- channel matrix: H
- code_name: The code name ( Alamouti , OSTBC3 ,...)
- code_rate: The code rate ( 1 , 1/2 ,...)
- num_code: The code number (1,2,...)
- modulator object
Ouput: - separated data
Note: This function requires the Matlab Communication Toolbox
Reference:
[1]E.G. Larsson,P.Stoica. "Space-time block coding for wireless
communications", Cambridge Press,2003
Platform: |
Size: 1024 |
Author:dasu |
Hits:
Description: 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 and Design. This system consists of QPSK modulation and demodulation, IFFT modulation, space time coding and decoding, based on training symbols such as communication channel estimation module. Platform: |
Size: 12288 |
Author:小于儿 |
Hits:
Description: 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. Platform: |
Size: 4096 |
Author:邓昌文 |
Hits:
Description: 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。希望对大家有帮助！
-This is based on the space-time block codes of MIMO_OFDM communication system simulation design. This system includes QPSK demodulation, IFFT modulation, space-time decoding, based on the training symbol of channel estimation and other communications module. We want to help! Platform: |
Size: 9216 |
Author:陈 |
Hits:
Description: 实现基于STBC的MIMO_OFDM通信系统在不同信噪比情况下接收端的误比特率的仿真。发射端包括基于基带调制、空时编码、导频插入、IFFT、串并合并以及添加循环前缀；接收端包括去除循环前缀、取出导频估计信道、FFT运算以及并串合并，空时解码等。仿真中采用QPSK、空时编码采用4*3的复正交空时编码矩阵。OFDM子载波数为100，每个子载波传输66个符号，每个符号2比特。IFFT长度为512个符号。发射天线为3个接收天线为2个。(The BER simulation of MIMO_OFDM communication system based on STBC under different SNR is realized. The transmitter includes baseband modulation, space-time coding, pilot insertion, IFFT, serial-parallel combination and adding cyclic prefix; the receiver includes removing cyclic prefix, extracting pilot estimation channel, FFT operation, parallel-serial combination, space-time decoding, etc. The complex orthogonal space-time coding matrix is used in QPSK and space time coding in 4*3. The number of OFDM subcarriers is 100, and each subcarrier transfers 66 symbols with 2 bits per symbol. IFFT is 512 symbols in length. The transmitting antenna is 3 receiving antennas, 2.) Platform: |
Size: 3072 |
Author:guokeDz |
Hits:
Search - space time decoding