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Description: turbo码在无线城域网中应用，matlab-turbo codes in the wireless MAN applications, Matlab
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Size: 3072 |
Author: 九妹 |
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Description: 一些常用的通信系统仿真，16qam、64qam误码分析，turbo。-Some commonly used communication system simulation, 16qam, 64qam error analysis, turbo.
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Size: 712704 |
Author: 杨鑫 |
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Description: 16QAM因其高频谱利用率而被第三代移动通信增强型技术HSDPA采用。由于Turbo译码需要软信息输入，因此，解调输出需要计算比特软信息（LLR）。本文分析了LLR理论算法并在此基础上导出了简化算法。-16QAM its high spectral efficiency have been enhanced third-generation mobile communication technology HSDPA use. Turbo decoding requires soft information as input, therefore, need to compute soft output demodulation information (LLR). This paper analyzes the LLR theory based on the algorithm derived in this simplified algorithm.
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Size: 123904 |
Author: 朱敏 |
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Description: 这是一个相对完整的OFDM通信系统的仿真设计，包括编码，调制，IFFT，上下变频，高斯信道建模，FFT，PAPR抑制，各种同步，解调和解码等模块，并统括系统性能的仿真验证了系统设计的可靠性。
-OFDM+TURBO+QAM+DUC/DDC+CFR
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Size: 16384 |
Author: wangjianghong |
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Description: Iterative Solutions is committed to the mission of developing accurate and efficient software for the simulation of modern communication systems. All software is licensed as open source software under the Lesser GPL. The code is designed to run in matlab, though the compute-intensive portions are written in C and Java. A wide variety of error control codes are supported, including turbo and LDPC codes, and an emphasis is placed on nonbinary modulation formats such as QAM and nonbinary continuous-phase FSK. The software goes beyond the usual error rate analysis by including tools for determining the Shannon capacity of arbitrary modulation formats.-Iterative Solutions is committed to the mission of developing accurate and efficient software for the simulation of modern communication systems. All software is licensed as open source software under the Lesser GPL. The code is designed to run in matlab, though the compute-intensive portions are written in C and Java. A wide variety of error control codes are supported, including turbo and LDPC codes, and an emphasis is placed on nonbinary modulation formats such as QAM and nonbinary continuous-phase FSK. The software goes beyond the usual error rate analysis by including tools for determining the Shannon capacity of arbitrary modulation formats.
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Size: 1024 |
Author: rizwan |
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Description: This document is about 16 QAM demapping of received data. But its a soft demapping method based Log likelihood ratio(llr). So results can be used as inputs for viterbi decoder or turbo decoder. It is very usefull to decrease BER for communication systems. In addition, QPSK, 64QAM etc. demappers can be derived based on this document.
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Size: 60416 |
Author: aydim turkken |
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Description: this program simulate a turbo equalizer for known and unknown channel for 16 qam
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Size: 318464 |
Author: majid yari |
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Description: A MIMO multiplexing system with NT transmit and NR = NT receive antennas is designed.
The main challenge for MIMO systems lies in the non-orthogonality of the transmission channel.
This can be solved by turbo processing.
Turbo channel encoder is used for converting the bits in its suitable form.
Then different M-ary QAM is compared.-A MIMO multiplexing system with NT transmit and NR = NT receive antennas is designed.
The main challenge for MIMO systems lies in the non-orthogonality of the transmission channel.
This can be solved by turbo processing.
Turbo channel encoder is used for converting the bits in its suitable form.
Then different M-ary QAM is compared.
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Size: 631808 |
Author: yuva |
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Description: A multiplexing system with NT transmit and NR equals NT receive antennas is designed.
The main challenge fo systems lies in the non-orthogonality of the transmission channel.
This can be solved by turbo processing.
Turbo channel encoder is used for converting the bits in its suitable form.
Then different M-ary QAM is compared.-A multiplexing system with NT transmit and NR equals NT receive antennas is designed.
The main challenge fo systems lies in the non-orthogonality of the transmission channel.
This can be solved by turbo processing.
Turbo channel encoder is used for converting the bits in its suitable form.
Then different M-ary QAM is compared.
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Size: 2731008 |
Author: yuva |
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Description: This matlab code describes soft demapper (soft bit) for different modulation types: BPSK, QPSK, PSK 8, QAM 16, QAM 64, which are considered for turbo encoding/decoding. And simulation results are also presented.
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Size: 4096 |
Author: Lonely Ghost |
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Description: turbo码的生成和解码 16QAM调制-turbo QAM
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Size: 8192 |
Author: liyue |
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Description: The file represents the turbo code for 128 QAM.
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Size: 4096 |
Author: akhil |
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Description: LTE system,
OFDM modulation and Turbo
Coding, including Viterbi, BCJR
and SOVA are extensively analysed,
ending up with a system performance
specification. These are
used to implement a fixed length
Turbo encoder, a 16-QAM modulator
and a 16 point IFFT on an
FPGA using MATLAB Simulink⃝ R
with Xilinx⃝ R System Generator plugin.
A MATLAB⃝ R script is developed
to test the Simulink implementation.
In addition, an iterative
Turbo decoder is programmed using
MATLAB⃝ R .
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Size: 11264 |
Author: mezo |
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Description: LTE system,
OFDM modulation and Turbo
Coding, including Viterbi, BCJR
and SOVA are extensively analysed,
ending up with a system performance
specification. These are
used to implement a fixed length
Turbo encoder, a 16-QAM modulator
and a 16 point IFFT on an
FPGA using MATLAB Simulink⃝ R
with Xilinx⃝ R System Generator plugin.
A MATLAB⃝ R script is developed
to test the Simulink implementation.
In addition, an iterative
Turbo decoder is programmed using
MATLAB⃝ R .
Platform: |
Size: 11264 |
Author: mezo |
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Description: Throughout the project the LTE system,
OFDM modulation and Turbo
Coding, including Viterbi, BCJR
and SOVA are extensively analysed,
ending up with a system performance
specification. These are
used to implement a fixed length
Turbo encoder, a 16-QAM modulator
and a 16 point IFFT on an
FPGA using MATLAB Simulink R ⃝
with Xilinx R ⃝ System Generator plugin.
A MATLAB R ⃝ script is developed
to test the Simulink implementation.
In addition, an iterative
Turbo decoder is programmed using
MATLAB R ⃝ .-Throughout the project the LTE system,
OFDM modulation and Turbo
Coding, including Viterbi, BCJR
and SOVA are extensively analysed,
ending up with a system performance
specification. These are
used to implement a fixed length
Turbo encoder, a 16-QAM modulator
and a 16 point IFFT on an
FPGA using MATLAB Simulink R ⃝
with Xilinx R ⃝ System Generator plugin.
A MATLAB R ⃝ script is developed
to test the Simulink implementation.
In addition, an iterative
Turbo decoder is programmed using
MATLAB R ⃝ .
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Size: 2099200 |
Author: mezo |
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Description: 包括turbo，polar，LDPC信道编码，交织，QAM，SCMA，MIMO检测，译码等(Including turbo, polar, LDPC, channel coding, interleaving, QAM, SCMA, MIMO detection, decoding, etc.)
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Size: 430080 |
Author: MasterYao
|
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Description: The codes enclosed are modulations codes. 16-QAM, 64-QAM and QPSK. the codes where written with turbo encoding and the results were compared to when turbo encoding was not used.
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Size: 26624 |
Author: Ka4 |
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