Wavelength division multiplexing (WDM) refers to a multiplexing and transmission
scheme in optical telecommunications fibers where different wavelengths, typically
emitted by several lasers, are modulated independently (i.e., they carry independent
information from the transmitters to the receivers). These wavelengths are then
multiplexed in the transmitter by means of passive WDM filters, and likewise they
are separated or demultiplexed in the receiver by means of the same filters or
coherent detection that usually involves a tunable local oscillator (laser).
资源简介：Wavelength Division Multiplexing (WDM) refers to a Multiplexing and transmission scheme in optical telecommunications fibers where different Wavelengths, typically emitted by several lasers, are modulated independently (i.e., they carry ind...
上传时间： 2020-06-01
上传用户：shancjb
资源简介：Orthogonal Frequency Division Multiplexing(OFDM) signal simulation
上传时间： 2014-01-10
上传用户：himbly
资源简介：Analysis and Simulation of a Digital Mobile Channe Using Orthogonal Frequency Division Multiplexing
上传时间： 2016-05-13
上传用户：ainimao
资源简介：ORTHOGONAL FREQUENCY Division Multiplexing FOR WIRELESS COMMUNICATIONS
上传时间： 2016-11-05
上传用户：songrui
资源简介：This program generates OFDM (Orthogonal Frequency Division Multiplexing) signal and its spectrum. Also the guard interval (GI) is inserted.
上传时间： 2014-01-16
上传用户：daoxiang126
资源简介：orthogonal frequency Division Multiplexing
上传时间： 2013-12-23
上传用户：坏天使kk
资源简介：OFDM(Orthogonal Frequency Division Multiplexing)
上传时间： 2014-01-22
上传用户：ruixue198909
资源简介：A MATLAB program has been written to investigate Orthogonal Frequency Division Multiplexing (OFDM) communication systems. This program is valuable for future researchers simulating systems that are too theoretically complex to analyze. Si...
上传时间： 2013-12-09
上传用户：redmoons
资源简介：Orthogonal frequency Division Multiplexing (OFDM) has been shown to be an effective technique to combat multipath fading in wireless channels. It has been and is going to be used in various wireless communication systems. This book gives ...
上传时间： 2020-05-31
上传用户：shancjb
资源简介：近几年来，OFDM(Orthogonal Frequency Division Multiplexing)技术引起了人们的广泛注意，根据这项新技术，很多相关协议被提出来。其中WiMax(Wireless MetropolitanArea Networks)代表空中接口满足IEEE 802.16标准的宽带无线通信系统，IEEE标准在2004年定义了...
上传时间： 2013-07-31
上传用户：1757122702
资源简介：正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)技术是一种多载波传输技术，它的基本思想是在频域内将给定信道划分成几个相互正交的子信道，每个子信道使用一个子载波进行调制，各子载波并行传输。该技术可以有效提高频谱利用率，能够对抗多...
上传时间： 2013-05-20
上传用户：Ruzzcoy
资源简介：正交频分复用(OnIlogonaJ Frequency Division Multiplexing，OFDM)技术通过将整个信道分为多个带宽相等并行传输的子信道，通过将信息经过子信道独立传输来实现通信，子信道的正交性可以保证最大限度的利用频谱资源。OFDM系统通过循环前缀来消除符号间干扰(ISI...
上传时间： 2013-06-06
上传用户：yyyyyyyyyy
资源简介：正交频分复用(OFDM，Orthogonal Frequency Division Multiplexing)技术作为一种可以有效对抗信号波形间干扰的高速传输技术，引起了广泛关注。它利用许多并行的、传输低速率数据的子载波来实现高速率的通信。它的特点是各子载波相互正交，所以扩频调制后的频谱...
上传时间： 2013-06-29
上传用户：水瓶kmoon5
资源简介：选择映射法（SLM）和概率类算法都可以降低OFDM （Orthogonal Frequency Division Multiplexing）系统的PAPR（Peak to Average Power Ratio），传统SLM算法自身较为复杂，但由于其优良的性能，弃之可惜。研究表明，SLM算法和限幅类算法在性能上具有一定的互补...
上传时间： 2013-11-22
上传用户：xinhaoshan2016
资源简介：正交频分复用技术（Orthogonal Frequency Division Multiplexing， OFDM）非常适合高速通信系统，但存在高峰均功率比（PAPR）的问题。对OFDM系统中如何降低PARR的问题进行了研究，讨论了降低PAPR的主要方法，重点分析了选择性映射法（SLM），并在此基础上提出...
上传时间： 2014-01-23
上传用户：zwei41
资源简介：Abstract: While many questions still surround the creation and deployment of the smart grid, the need for a reliablecommunications infrastructure is indisputable. Developers of the IEEE 1901.2 standard identified difficult channel condition...
上传时间： 2013-10-18
上传用户：myworkpost
资源简介：正交频分复用 （Orthogonal Frequency Division Multiplexing，OFDM）是一种多载波调制技术，由于具有良好的抗多径干扰性能，适用于高速数据传输，OFDM成为近年来人们研究的热点。但是其峰均比较高，应用受到了限制，因此有必要研究降低PAPR的方法。本文首先...
上传时间： 2013-11-19
上传用户：moshushi0009
资源简介：This paper considers semiblind channel estimation and data detection for orthogonal frequency-Division Multiplexing (OFDM) over frequency-selective fading channels.
上传时间： 2014-12-07
上传用户：coeus
资源简介：This project aim was to build wireless software modem for data communication between two computers using an acoustic interface in the voice frequency range (20Hz– 20,000Hz). The transmitting antenna is a speaker (frequency response of: 9...
上传时间： 2014-05-29
上传用户：wangdean1101
资源简介：OFDM Modem Applications • Digital Video Broadcast (DVB) • Digital Audio Broadcast (DAB) • Broadband Wireless Access (802.16x) • Wireless LAN (802.11x & HiperLAN) Orthogonal OFDM Sub-carriers Orthogonal Frequency Di...
上传时间： 2016-03-23
上传用户：cc1
资源简介：OFDM(Orthogonal Frequency Division Multiplexing)即正交频分复用技术，实际上OFDM是多载波调制的一种。其主要思想是：将信道分成若干正交子信道，将高速数据信号转换成并行的低速子数据流，调制到在每个子信道上进行传输。正交信号可以通过在接收端采用相关...
上传时间： 2015-02-17
上传用户：hongyun288
资源简介：This book gives a comprehensive overview of the technologies for the advances of mobile radio access networks. The topics covered include linear transmitters, superconducting filters and cryogenic radio frequency (RF) front head, radio over...
上传时间： 2020-05-26
上传用户：shancjb
资源简介：Emerging technologies such as WiFi and WiMAX are profoundly changing the landscape of wireless broadband. As we evolve into future generation wireless networks, a primary challenge is the support of high data rate, integrated multi- med...
上传时间： 2020-05-26
上传用户：shancjb
资源简介：All wireless communication standards, existing and under development, adopt or consider adopting orthogonal frequency-Division Multiplexing (OFDM) as the modulation technique. It is clear that OFDM has become the definitive modulation schem...
上传时间： 2020-05-31
上传用户：shancjb
资源简介：Before delving into the details of orthogonal frequency Division Multiplexing (OFDM), relevant background material must be presented first. The purpose of this chapter is to provide the necessary building blocks for the development of OFDM ...
上传时间： 2020-05-31
上传用户：shancjb
资源简介：Emerging technologies such as WiFi and WiMAX are profoundly changing the landscape of wireless broadband. As we evolve into future generation wireless networks, a primary challenge is the support of high data rate, integrated multi- med...
上传时间： 2020-05-31
上传用户：shancjb
资源简介：面向 5G 的新型多载波传输技术比较 摘 要: 介绍了几种面向 5G 的新型多载波传输技术: 滤波器组多载波( FBMC，Filter Bank Multicarri- er) 、通用滤波多载波( UFMC，Universal Filtered Multicarrier) 和广义频分复用( GFDM，Generalized Fre- quency Divisio...
上传时间： 2022-02-25
上传用户：kingwide
资源简介：5G通信系统中massive-MIMO-FBMC技术的结合概述摘要为了应对第五代移动通信（5G）中更高数据率和更低时延的需求，大规模MIMO （massive multiple-input multiple-output）技术已经被提出并被广泛研究。大规模 MIMO技术能大幅度地提升多用户网络的容量。而在5G...
上传时间： 2022-02-25
上传用户：
资源简介：正交频分复用（OFDM，Orthogonal Frequency Division Multiplexing）是当前一种非常热门的通信技术。它即可以被看作是一种调制技术，也可以被看作是一种复用技术。由于它具有抗多径衰落和频谱利用率高的特点，因此被广泛应用于高速数字通信领域，比如应用于IE...
上传时间： 2022-07-29
上传用户：
资源简介：Half-Wavelength dipole antenna (FDTD simulation)
上传时间： 2014-08-14
上传用户：hopy
