Location:
Search - papr m
Search list
Description: ofdm的采用的改进pts，即m序列pts方法来降低papr
Platform: |
Size: 1520 |
Author: 丛容 |
Hits:
Description:
Platform: |
Size: 1024 |
Author: 丛容 |
Hits:
Description:
Platform: |
Size: 8192 |
Author: 风雨轩 |
Hits:
Description: Code for calculating reduced PAPR through SLM
Platform: |
Size: 2048 |
Author: subh |
Hits:
Description: 在OFDM系统中，为了降低峰均功率比，采用SLM算法，该程序就是相应的Matlab源码-In OFDM system, in order to reduce the PAPR, SLM algorithm used, the program is the appropriate Matlab source
Platform: |
Size: 1024 |
Author: wgetfree |
Hits:
Description: “SLM_Papr_V4.m”，SLM方法(V=4)PAPR的互补累积分布函数(CCDF)曲线。-A way to reduce the high PAPR of OFDM system-SLM
Platform: |
Size: 2048 |
Author: 张磊 |
Hits:
Description: m序列PTS方法:
“mSeqPTS_Papr_V8.m”，m序列PTS方法(V=8)PAPR的互补累积分布函数(CCDF)曲线；
“PTSV8_Mseq_sspa.m”， m序列PTS方法(V=8) 经过SSPA放大器后OFDM系统误码性能曲线。
-A way to reduce the high PAPR of OFDM system-PTS
Platform: |
Size: 2048 |
Author: 张磊 |
Hits:
Description: 基于m序列的PTS算法 降低OFDM系统中的PAPR-PTS algorithm based on m sequences reduce the PAPR in OFDM system
Platform: |
Size: 2048 |
Author: 宁磊 |
Hits:
Description: 峰值抵消算法的基本思想是：在OFDM信号上叠加一个由一系列加权参考函数组成的峰值抵消信号，通过抵消函数的选取以及权值计算，使得抵消信号尽可能消除超过门限的信号幅值。常见的参考函数分为脉冲函数和其他窗函数两类。- T. May, H. Rohling. Reducing the peak-to-average power ratio in OFDM radio transmission systems. IEEE Vehicular Technology Conference (VTC), May 1998, Ottawa Canada, 3: 2474-2478
A. Geert Arnout, van N. Richard D., de W. Arnout Hendrik. Transmission system and method employing peak cancellation to reduce the peak-to-avrage power ratio. US Patent 6175551, Issued on January 16, 2001
S. K. Cha, M. H. Park, S. G. LEE, et al. A new PAPR reduction technique for OFDM systems using advanced peak windowing method. IEEE Trans. Consum. Electron., 2008, 54(2): 405-410
G. G. Chen, R. Ansari, Y. W. Yao. Improved peak windowing for PAPR reduction in OFDM. IEEE Vehicular Technology Conference, Apr. 2009, Barcelona, Spain
H. Kuo, S.W. Cheung. Optimization of windowing and peak-windowing techniques for WCDMA systems. IEEE International Conference on Acoustics, Speech and Signal Processing, May 2006, Toulouse France, 4: IV313-IV316
O. Vä ä nä nen, J. Vankka, K. Halonen. Simpl
Platform: |
Size: 2681856 |
Author: daidaohan |
Hits:
Description: m-file调查高功率放大器的影响，channelnoise在ofdm信号，当时介绍卡由于一个paprreductionmethod减少hpa效果。-m-file investigation of high-power amplifier, channelnoise in ofdm signal, when introduced to reduce card due to a paprreductionmethod hpa effects.
Platform: |
Size: 2048 |
Author: 吴俊凡 |
Hits:
Description: This M Code simulate the effects of clipping and filtering on PAPR reduction in OFDM-based wireless standard.Also the performance of BER versus SNR of original OFDM signals with PAPR reduction based on clipping and filtering schemes over AWGN channel is evaluated.
The simplest and most widely used technique of PAPR reduction is to basically clip the part of signals that are outside the allowed region.Clipping methode introduces both in band distortion and out of band radiation into OFDM signals which degrades the performance including the BER and spectral efficiency.Filtering can reduce out of band radiation after clipping although it can not reduce in-band radiation distortion.However, clipping may cause some peak regrowth so that the signal after clipping and filtering will exceed the clipping level at some point.To reduce peak regrowth a repeated filtering and clipping operation can be used to obtain a desirable PAPR at a cost of computational complexity increase.
-This M Code simulate the effects of clipping and filtering on PAPR PAPR reduction in OFDM-based wireless standard.Also the performance of BER versus SNR of original OFDM signals with PAPR reduction based on clipping and filtering schemes over AWGN channel is evaluated.
The simplest and most widely used technique of PAPR reduction is to basically clip the part of signals that are outside the allowed region.Clipping methode introduces both in band distortion and out of band radiation into OFDM signals which degrades the performance including the BER and spectral efficiency.Filtering can reduce out of band radiation after clipping although it can not reduce in-band radiation distortion.However, clipping may cause some peak regrowth so that the signal after clipping and filtering will exceed the clipping level at some point.To reduce peak regrowth a repeated filtering and clipping operation can be used to obtain a desirable PAPR at a cost of computational complexity increase.
Platform: |
Size: 11770880 |
Author: shahram |
Hits:
Description: 是用于OFDM系统， 能有效地降低系统地PAPR，同时可利用伪随机序列来结合PTS减少计算地复杂性和冗余-Be suitable for OFDM system to reduce the PAPR. and to combine with the m sequence to reduce the complexity of PTS algorithm.
Platform: |
Size: 1024 |
Author: gaopeng |
Hits:
Description: 这是一个通信系统的仿真，是用SIMULINK的S-FUNCTION方式编写的，共有20个M文件，1个DOC文件，本系统的仿真设计到编码、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，每个模块都用详细的代码和注释，并通过了系统性能的仿真验证了系统设计的可靠性，可以直接拿来仿真整个系统，也可来学习各个部分的设计。-This is a communication system simulation, is the S-FUNCTION SIMULINK approach to the preparation, a total of 20 M file, a DOC file, the system simulation design to coding, modulation, IFFT, and down conversion, Gaussian channel model , FFT, PAPR suppression, various synchronization, demodulation and decoding modules, each module with a detailed code and comments, and system performance through simulation and verification of the reliability of system design, simulation of the entire system can be directly used, also to learn the various parts of the design.
Platform: |
Size: 38912 |
Author: masong |
Hits:
Description: CCDF of OFDM signal with no PAPR reduction technique.
Number of total subcarriers used is 256 by default.
Platform: |
Size: 1024 |
Author: warlock1990 |
Hits:
Description: M-ITERATION CLIPPING PAPR reduction for OFDM
Platform: |
Size: 2048 |
Author: Alexandr Antonov |
Hits:
Description: The DSI method is
basically a modified SLM method. The additional aspect of
the DSI method is to add M-bits dummy sequences to the
original sequence in order to reduce the PAPR. Where, the
dummy bits are inserted at the end of the data sequence (y).
Next, after IFFT, we select the M-DSI sequence having the
lowest PAPR.
Platform: |
Size: 1024 |
Author: mounasgh |
Hits:
Description: 程序plot_CCDF.m用来显示当N=64，128，256，512，1024时，OFDM信号的理论CCDF和仿真CCDF。该程序调用PAPR.m来计算PAPR，调用mapper.m来实现PSK/QAM调制。-Program plot_CCDF.m to display when N = 64,128,256,512,1024, the theory and simulation CCDF CCDF OFDM signal. The program calls PAPR.m to calculate the PAPR, call mapper.m to achieve PSK/QAM modulation.
Platform: |
Size: 3072 |
Author: 李竹竿 |
Hits:
Description: MC-CDMA with SFBC
In the next subsections, we describe the architecture of an SFBC MIMO MC-CDMA transmitter, and define the basic terms related to the PAPR of the involved signals.
System model
In an MC-CDMA system, a block of M information symbols each active user are spread in the frequency domain into N = LM subcarriers, where L represents the spreading factor. This is accomplished by multiplying every symbol of the block for user k, where k ∈ {0,1,..., L - 1}, by a spreading code , -MC-CDMA with SFBC
In the next subsections, we describe the architecture of an SFBC MIMO MC-CDMA transmitter, and define the basic terms related to the PAPR of the involved signals.
System model
In an MC-CDMA system, a block of M information symbols each active user are spread in the frequency domain into N = LM subcarriers, where L represents the spreading factor. This is accomplished by multiplying every symbol of the block for user k, where k ∈ {0,1,..., L - 1}, by a spreading code ,
Platform: |
Size: 4096 |
Author: emman |
Hits:
Description: PAPR Reduction based on a Modified PTS with
Interleaving and Pulse Shaping method for
STBC MIMO-OFDM System.
It is with GUI. Using GUI we can see comparison with number of sub carrier, sub-block and over sampling factor as well BER plot comparison of normal and with PTS technique. You need to run MIMO_OFDM_with_PTS.m
Note: Do not delete or rename amy file and place all the files in one single folder because some are functions which are called in GUI code.-PAPR Reduction based on a Modified PTS with
Interleaving and Pulse Shaping method for
STBC MIMO-OFDM System.
It is with GUI. Using GUI we can see comparison with number of sub carrier, sub-block and over sampling factor as well BER plot comparison of normal and with PTS technique. You need to run MIMO_OFDM_with_PTS.m
Note: Do not delete or rename amy file and place all the files in one single folder because some are functions which are called in GUI code.
Platform: |
Size: 33792 |
Author: puneproj |
Hits:
Description: ABSTRACT
In this paper, the design and implementation of OFDM system along with Multi-Point Square Mapping combined with PTS (M-PTS) technique has received much attention in reducing the high peak to average power ratio (PAPR) of Orthogonal Frequency Division Multiplexing signals (OFDM). As compared to C-PTS technique, the proposed M-PTS technique needs not to submit side information but keeping almost the same performance of PAPR reduction as the C-PTS technique. A detailed Simulation of OFDM system is conducted and implemented using FPGA to validate the results.
Platform: |
Size: 837632 |
Author: redami |
Hits: