Demonstration of 4 128-Gb/s DFT-S OFDM Signal Transmission over 320-km SMF With IM/DD 来自 Semantic Scholar 喜欢 0 阅读量: 120 作者:Y Wang,J Yu,C Nan 摘要: . We also achieved 144-Gb/s for 80-km SSMF transmission. Additionally, 4 × 128-Gb/s wavelength division multiplexing (WDM)...
四、PAPR减小技术——以DFT-s-OFDM为例 在《MIMO-OFDM无线通信技术及MATLAB实现》第7章PAPR减小技术,介绍了以下几种:限幅技术、编码技术、加扰技术、自适应预失真技术和DFT扩频技术。 本文将集中在DFT扩频技术上,这是为什么呢?这里结合5G NR协议来说。 以下内容来自王映民、孙韶辉的《5G移动通信系统设计与标准详解》...
The terminal (10) is adapted for transmitting reference signaling having a comb structure for transmission based on either the first FDMA technology or the second FDMA technology. The disclosure also pertains to related devices and methods.BALDEMAIR RobertLINDBOM LarsDAHLMAN ErikPARKVALL Stefan...
A low-PAPR low-pilot overhead Reference Signal for the DFT-spread OFDM Modulation 来自 Semantic Scholar 喜欢 0 阅读量: 13 作者:A Bouttier,J Guillet 摘要: With the current deployment of high throughput satellite (HTS) providing several gigabits of capacity in multiple spot beams, satellite ...
et al. An Improved DFT-Based Channel Estimation Algorithm for OFDM System in Non-sample-Spaced Multipath Channels. Circuits Syst Signal Process 33, 1277–1288 (2014). https://doi.org/10.1007/s00034-013-9678-0 Download citation Received21 March 2013 Revised12 September 2013 Published11 October ...
th OFDM symbol, the th subcarrier of the received signal is denoted as (1) where are the pilot subcarriers, for simplicity, it is assumed that , represents the channel frequency response on the th subcarrier. is the AWGN with zero mean and variance of ...
(Signal Analyzer)骨子里都是量测时域(Time Domain),其实现实的讯号都是所谓的时域讯号,只是高频讯号很难直接量测,所以才会用接收机先降频后在处理,但现在高阶的示波器(Oscilloscope)的取样率(Sampling Rate)与频宽都相当高,已经有高达100G/s的机器出现,直接进行时域量测后进行傅立叶变换(Fourier Transform) 不就...
【8] Scharf L L.Statistical Signal Processing :Detection,Estimat ion,an d Time Series Analysis[M].【S.1.]:Addison—Wesley, 199 1. [9] E dfo rs O,Sandell M .OFDM Channel Estimation by Singular Value Decomposition[C]//Proc.of the 46th IEEE Vehicular Technology ...
The received signal will be the convolution of the channel and the transmitted signal. Assuming that the channel is static during an OFDM block, at the receiver side after removing the CP, the FFT output as the demodulated received signal can be expressed as B1 B2 ...
Mansour, Nagham Abd AlazeezKadhim, Abdulkareem AMANSOUR N A AꎬKADHIM A A.Improved DFT~based channel estimation techniques for OFDM signal [ J] . In~ ternational journal of engineering researchꎬ2016ꎬ5(12) : 922~926.