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00554481
- he fabrication and performaince of a semiconductor optical amplifier for wavelength conversion in subcarrier multiplexed system is described. The amplifier is of the buried facet design and has p o ~ a r ~ ~ a ~ani
noma_test
- 这是一个非正交环境下的程序，两个用户分在一个子载波内，通过分配不同的功率，才接受端采用SIC进行信号消除。-This program is a non-orthogonal environment, within a two-user subcarrier, by allocating different power, only the receiving end of the signal to eliminate the use o
OFDM_MATLAB
- 完美的OFDM程序，根据短训练字的特性进行相关运算，进行信号到达检测，当检测到相关值大于门限一定次数后，认为有信号到达。然后根据长训练字的特性，进行相关运算，进行OFDM符号FFT窗口起始位置的估计。估计出FFT窗口的位置后，先在时域进行小频偏的估计，将两个长训练字进行小频偏补偿后，进行FFT运算，根据FFT运算的结果进行整数倍频偏的估计。这些参数估计完成后，就可以进行数据解调了。先对数据部分进行完整的频偏补偿，然后根据估计的FFT窗口
ofdmcp
- 系统子载波数为64，调制方式为16-QAM，前缀长度为16，多径信道时延分别为0、8和20个采样点，各径功率相等。仿真比较OFDM系统空白前缀只考虑前2径信道和3径信道下的性能 -System subcarrier number is 64, modulation mode of 16 QAM, prefix length is 16, multipath channel delay is 0, 8 and 20 respectiv
AAA
- In this letter, we propose a simple orthogonal frequency-division multiplexing (OFDM) scheme for an asynchronous cooperative system, where OFDM is implemented at the source node, and time-reversion and complex conjugat
OFDM-Signal-Improvement-Using-Radio-over-Fiber-fo
- OFDM as a modulation technology, it transmit over both wireless and optical channel, and it distribute the data over a large number of subcarrier can be overlapping. It achieved RF signal for the long haul transmission
LTE
- MIMO-OFDM自适应实现，如果有自适应调制,进行逐用户,逐OFDM符号,逐子载波的星座调制-MIMO-OFDM Adaptive be achieved if there is an adaptive modulation performed by the user, per OFDM symbol-by-subcarrier modulation constellation
ofdm
- OFDM系统仿真，非常完整，适合于学习OFDM的同学。包括 串并变换子载波调制 OFDM的IDFT/DFT实现保护间隔与循环前缀 基于OFDM的802.11a系统 802.11a的帧结构 802.11a OFDM物理层编码过程 系统参数训练符号 Signal域 Data域的扰码及解扰卷积编码器和Viterbi译码交织子载波调制与解调 IEEE 802.11a系统的仿真 -OFDM system simulation, v
SmpcakrierLine
- Subcarrier Allocation in a Multiuser MIMO Channel Using Line-Subcarrier Allocation in a Multiuser MIMO Channel Using the Line
Grxpher
- Subcarrier Allocation in a Multiuser MIMO Channel Using Line-Subcarrier Allocation in a Multiuser MIMO Channel Using the Line
Djind
- Subcarrier Allocation in a Multiuser MIMO Channel Using Line-Subcarrier Allocation in a Multiuser MIMO Channel Using the Line
TTSWJJK
- Subcarrier Allocation in a Multiuser MIMO Channel Using Line(Subcarrier Allocation in a Multiuser MIMO Channel Using the Line)
sub
- subtractor vhdl code for fpga
RDS解码器
- 接收平台下发的带副载波的调频信号，并进行解调、放大，最后驱动高音喇叭进行广播。支持接收三个频点FM-RDS，支持应急/日常广播，支持区域广播，支持定时广播，具有多种保护电路等。(The subcarrier frequency modulation signal under the receiving platform is demodulated and amplified, and the loudspeaker is finall
dako2
- subcarrier allocation
PATH
- 实现了光通信系统的多径、以及不同信噪比下的通信链路信噪比仿真。其中包含OOK/PPM/DPPM/DHPIM/副载波调制(The simulation of communication link signal-to-noise ratio (SNR) of optical communication system under multipath and different signal-to-noise ratio is realized
OFDM_Capacity
- 介绍了OFDM的资源分配，分为两步：第一步是子载波分配，第二步是功率分配(The resource allocation of OFDM is divided into two steps: the first step is the subcarrier allocation, and the second step is the power allocation.)
MIMO1
- 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
upload
- 这些文件将在两用户非正交多址（NOMA）系统中实现用于信号检测的深度学习方法[1]。三个主要脚本分别是生成训练数据、训练神经网络和生成测试结果。该神经网络用于相位衰落的静态标量信道，用于NOMA系统中同时检测2个用户的单个子载波上的传输符号。考虑并测试了两种情况：一种是导频符号数目较少，另一种是循环前缀长度较短。在这两种情况下，深度学习方法都比传统的信道估计方法具有更强的鲁棒性。(These files are to implement