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OFDM
- 基于对比BPSK系统的OFDM仿真结果分析,把N个子载波上的传输符号通过IFFT，然后并串转换后传输，在接收端通过串并转换后再进行FFT变换-BPSK OFDM system based on comparative analysis of simulation results, the N sub-carrier transmission symbols by IFFT, and the string conversion and transmission, the receiver stri
OFDM_64_16QAM
- 这个OFDM系统仿真较基础，没有考虑多径情况；<br>该程序实现的是64载波的16QAM调制，根据程序可以依葫芦画瓢搞成其他的M路载波情况；<br>这又是我们做课程设计的程序，希望对大家有用。-The more basic OFDM system simulation, without considering multipath situation <br> Implementation of the program is a 64-carrier 16QA
r-li-2008-thesis.pdf.tar
- As a multi-carrier modulation scheme, Orthogonal Frequency Division Multiplexing (OFDM) technique can achieve high data rate in frequency-selective fading channels by splitting a broadband signal into a number of narrowband signals over a number
On-UCI-transmission-in-lte
- 介绍LTE-A载波聚合技术中上行控制信息的最新研究情况，极具应用价值 -On UCI transmission under simultaneous PUCCH and PUSCH in carrier aggregation
OFDM
- RA准则下的OFDM自适应资源分配问题，涉及载波和功率的分配，是一个既含有离散决策变量，又含有连续决策变量的非线性优化模型，且含有较为复杂的非线性约束，因此适合采用智能优化算法进行求解。-RA OFDM under guideline adaptive resource allocation problem, involving carrier and power allocation is a decision with both a discrete variable, but also w
OFDM_rece_matlab
- 一个OFDM符号128个有效符号，插入128个虚拟子载波 符号率（即有效数据率）fsymbol，而发送速率（需要包括虚拟子载波）2fsymbol 输入的数据需要2倍的发送数据率，以便进行内插，实现位定时跟踪，即4倍fsymbol采样率的调制信号 OFDM symbol Nfft=128 points 一个OFDM符号数据点 Nfft*2 = 256 ， Guard Interval点 ＝Ng*2=64 - a OFDM symbol 128 effective s
xiaobofj
- 小波分解用在信号识别上面。所用信号有，单载波信号和OFDM信号以及另一种多载波信号WPM。对做信号处理和识别方面的朋友会很有帮助。-Wavelet decomposition used in the signal recognition above. Signals are used, single-carrier signals and OFDM signals, and other multi-carrier signal WPM. Do signal processing and iden
48
- OFDM系统的PAPR性能与分割方式有关，但除此之外还与输入数据的子分组数V、相位集合中的相位数P以及子载波数量N有关。下面，对各种条件下PTS-OFDM系统的性能进行了仿真。-PAPR performance of OFDM systems and partitions the way, but in addition to the input data, the number of sub-group V, number of phases in the collection phase P
TU45
- 给出了不同分割数量V条件下的系统的PAPR性能，分割方法为随机分割，辅助相位集合的相位数P=4(即 可选择的范围为{0,π/2,π,3π/4})，N=128，子载波采用QPSK调制，仿真的OFDM符号数为1000个。-V gives the number of different partitions of the system under PAPR performance of random segmentation segmentation, the number of secondary
(Kluwer)-Multi-Carrier-Digital-Communications-The
- eBook: Multi-Carrier Digital Communications Theory and Applications of OFDM - Kluwer Publishing
1
- 多天线正交频分复用(MIMO-OFDM,Multiple-Input and Multiple-Output Orthogonal Frequency Division Multiplex)系统中,精确的符号定时同步可使接收端解调数据时消除载波频率偏移和符号间干扰。而由于MIMO空间信道复杂度较高,使得单天线OFDM系统的同步方法不能直接应用于MIMO-OFDM系统中。提出的两步同步方法首先利用时域导频作为第一步同步进行粗同步,然后利用循环交织前缀作为第二步同步对每一个MIMO-OFDM符号进行
ofdm1
- 由MATLAB程序产生2Gbi/s的基带OFDM信号先将2^15-1个伪随机序列映射到256个进行4QAM编码调制的子载波上，编码后的OFDM符号再经过IFFT变换将其转换为时域波形，接着添加6.4ns的循环前缀（CP），产生的数据波形再装载到Tektronix任意波形发生器（AWG）中，产生2Gbit/s的基带OFDM信号。基带OFDM信号频谱示意图如图3所示。其中包括256个OFDM子载波256个子载波中200个子信道用来传送数据信号，27个高频和28个低频子信道为了过采样的需要置0，OFD
ofdm_full_channel
- Orthogonal frequency-division multiplexing (OFDM), essentially identical to coded OFDM (COFDM) and discrete multi-tone modulation (DMT), is a frequency-division multiplexing (FDM) scheme used as a digital multi-carrier modulation method. A large numb
4-pallale-OFDM
- 4路子载波调制的正交频分复用源代码，以及误比特率的计算，画图-4 way carrier modulation orthogonal frequency division multiplexing source code, and bit error rate calculation, drawing
MIMO-OFDM-Systems-Based-on-Preamble-
- MIMO OFDM 技术将成为第4 代移动通信系统的关键技术, 因MIMO OFDM 对时间和频率偏移非常敏感, 因此MIMO OFDM 同步显得尤为重要。提出了一种新的MIMO OFDM 定时同步和频偏同步技术。以GCL 序列为基础设 计了一个新的符合MIMO OFDM 同步技术的导频序列, 通过对该导频序列进行2 次相关得到频率估计, 并将所得频率 运用到定时同步中, 得到更为准确的时间估计
OFDM
- 4信道OFDM，子载波采用QAM调制 ，待传的信号与OFDM产生的信号之间的仿真图-4-channel OFDM sub-carrier QAM modulation between the signal and the OFDM signal to be preaching simulation Figure
INTER-CARRIER-INTERFERENCE-CANCELLATION-thesis.zi
- this report explains the phenomenon of ICI in ofdm
INTER-CARRIER-INTERFERENCECANCELLATION-FOR-OFDM-S
- this reports explain the effect of ICI in ofdm with matlab code.
Synchronization-Technology-of-OFDM
- 一种新的符号定时和载波频率同步算法,该算法将OFDM符号分成几部分。它使用相关性和积累在几个OFDM同步算法对OFDM系统基于试点,使用前言快速、准确获取信号,在有限的时间建立同步,利用导频跟踪同步信息-A new symbol timing and carrier frequency synchronization algorithm is presented and the algorithm divides the OFDM symbol into several parts. It us
OFDM-communication
- 正交频分复用技术，是多载波调制的一种，文档中有源程序和原理图，有一定数字信号处理知识容易理解-Orthogonal frequency division multiplexing, is a multi-carrier modulation, the document has source code and schematics, a certain knowledge of digital signal processing is easy to understand