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wlan_transmitter
- WLAN仿真－发送机 wlan No Comments 设置完系统参数后，开始产生发送数据。 1. 产生随机的发送bit（tx_bits），这里不考虑信道编码。 2. QAM映射 3. 将数据映射到不同载波，形成OFDM符号 4. 产生pilot，并将pilot插入OFDM符号中 5. 加入dc和guard子载波 6. 进行ifft，将频域信号变到时域，并加入循环前缀 7. 对信号进行overlap window 8. 在时域产生short preamb
R1-091695
- Phase noise resulting in Common Phase Error (CPE) and Inter-Carrier Interference (ICI) is a critical challenge to the implementation of OFDM systems. Modeling phase noise as a stationary Gaussian random process with the specified power spectr
R1-091775
- Phase noise resulting in Common Phase Error (CPE) and Inter-Carrier Interference (ICI) is a critical challenge to the implementation of OFDM systems. Modeling phase noise as a stationary Gaussian random process with the specified power spectr
R1-092264
- Phase noise resulting in Common Phase Error (CPE) and Inter-Carrier Interference (ICI) is a critical challenge to the implementation of OFDM systems. Modeling phase noise as a stationary Gaussian random process with the specified power spectr
ofdbpilot
- Pilot Carrier Design in OFDM Syastem
getPDF1
- In this paper, we investigate the timing and carrier frequency offset (CFO) synchronization problem in decode and forward cooperative systems operating over frequency selective channels. A training sequence which consists of one orthogonal fr
getPDF2
- In this paper, we investigate the timing and carrier frequency offset (CFO) synchronization problem in decode and forward cooperative systems operating over frequency selective channels. A training sequence which consists of one orthogonal fr
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
System-Simulation-0f-CDMA2000
- 本程序仿真CDMA2000的复扩频过程,只考虑导频信道和一个业务信道,假设同步已建立，接收端能产生同频同相相干载波,整个仿真过程在基带中进行.-The simulation program CDMA2000 complex spread spectrum, considering only the pilot channel and a business channel, and assume that synchronization has been established, the rece
fangzheng
- 对OFDM进行 基于导频序列的同步的仿真，帧同步，符号同步及载波同步-OFDM based on pilot sequence simulation synchronization, frame synchronization, symbol synchronization and carrier synchronization
Pilot_Insert
- 导频插入，此程序用ISE的verilog编写，主要用于载波提取和采样频率同步-Pilot insertion procedures prepared by the ISE verilog, mainly used for carrier extraction and sampling frequency synchronization
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
Carrier-Placement
- 在导频放置Multicarrier-Based系统,关于信道估计方法-On the Pilot Carrier Placement in Multicarrier-Based Systems
CS_different_polit
- 低压电力线载波通信的OFDM系统仿真，采用了压缩感知的方法进行信道估计，分别选取不同导频数目与LS算法比较，仿真效果良好。-OFDM power line carrier communication system simulation, using the compressed sensing method for channel estimation, respectively, to select a different number of pilot and LS algorithm, t
different_polit_fenbu
- 应用于低压电力线载波通信的OFDM系统仿真，采用了压缩感知的方法进行信道估计，采用不同的导频分布方式，仿真效果良好。-Used in low-voltage power line carrier communication OFDM system simulation, using the compressed sensing method for channel estimation, using different distribution methods pilot simulation
A-Pilot-Design-Technique
- 快衰落瑞利信道下一种适合单载波传输的导频符号的设计-A Pilot Design Technique for Single-Carrier Transmission over Fast Fading Relay Channels
STUDY AND ANALYSIS OF TIMING OFFSET ESTIMATION METHODS IN OFDM SYSTEMS
- OFDM is a multi-carrier transmission technique. It converts the frequency selective fading channel into a collection of parallel flat fading sub-channels which simplifies the structure of a receiver. OFDM has been widely used in communication system
12.ISCA-RJRS-2013-290
- Application of spread spectrum for satellite land mobile systems is difficult in satellite link because of synchronization and providing code or considerable Doppler shift. This is particularly high for LEO satellites. So that, a Doppler shift carr
[13]-xiaomin_thesis
- This paper depicts the development of Orthogonal Frequency Division Multiplexing a historical perspective. A summary of major research milestones are noted that contributed to modern-day OFDM. These contributions include the use of discrete F