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simulation.rar
- 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.
16QAM
- 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 inform
OFDM_MATLAB
- 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
CmlStartup
- 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 ma
16QAM_soft_demapping
- 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 sys
final
- this program simulate a turbo equalizer for known and unknown channel for 16 qam
new
- 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 i
narayani__ref
- 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
softbit-BPSK-QPSK-PSK8-QAM16-QAM64
- 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.
LLR decoding for 64 QAM
- thiese programs very helpful in LLR decoding algorithm which is used in turbo code or LDPC decoder with 64 QAM modulation
turbo_QAM
- turbo码的生成和解码 16QAM调制-turbo QAM
128QAM
- The file represents the turbo code for 128 QAM.
turbo_code
- 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 a
turbo_lte_ofdm_fpga_code
- 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 a
finalTURBOCODE_OFDM
- 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 enco
SimPlatform
- 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.)
Modulation Codes
- 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.
5G 中的 SCMA Turbo 学习
- 稀疏码多址 (SCMA) 是最近设计的一种扩展技术，其中 QAM 符号被映射到不同的 OFDMA 音调。基于码本的映射可以看作是一种扩频编码过程，其中整形增益有助于提高频谱效率并增强系统性能。本文基于 SCMA 编码方案，提出了一种联合多用户检测 (MUD) 和信道解码方法，应用了“turbo 原理”。与传统的分离检测和解码方案相比，turbo检测性能更好，增益更高，复杂度适中。在此之上，提出了一种改进方法，即在迭代之前修改外在信息。改进是基于信息的可靠性，保持可靠的信息并减少不可靠的信息。具体