Location:
Search - 3G OFDM
Search list
Description: 对Vblast—oFdm系统地仿真，对进行Vblast空时分层码研究者是很好的参考，而且也是B3G地关键技术。-right Vblast - oFdm system to simulation, Vblast right for layered space-time codes researchers is a good reference, but also the key to 3G technology.
Platform: |
Size: 475604 |
Author: 天王 |
Hits:
Description: CDMA协议scdma-3G协议-CDMA protocol SCDMA protocol
Platform: |
Size: 3656704 |
Author: 李刚 |
Hits:
Description: 对Vblast—oFdm系统地仿真，对进行Vblast空时分层码研究者是很好的参考，而且也是B3G地关键技术。-right Vblast- oFdm system to simulation, Vblast right for layered space-time codes researchers is a good reference, but also the key to 3G technology.
Platform: |
Size: 475136 |
Author: 天王 |
Hits:
Description: 3G技术资料－－ 大唐电信的 TD-SCDMA物理层关键技术资料-3G technology information-- Datang Telecom's TD-SCDMA physical layer key technical information
Platform: |
Size: 905216 |
Author: Nick |
Hits:
Description: 关键的3G技术cofdm的相关程序代码，运行效果不错欢迎大家积极下载-key 3G technology cofdm the relevant code, the operating results good to welcome you actively download
Platform: |
Size: 73728 |
Author: 周洁 |
Hits:
Description: 可用于3G/B3G系统当中的快衰信道的jakes模型的matlab仿真 作者已经将它用于ofdm系统 -3G/B3G system can be used for the rapid decline among Channel jakes model for the simulation of Matlab We have to use it for ofdm system
Platform: |
Size: 2048 |
Author: 王强 |
Hits:
Description: 在通信网络中，接入技术自始至终都是发展的热点。从时分、频分、码分到目前的空分，
从TDMA、CDMA到OFDMA，从单天线到智能天线，先进的技术日新月异，层出不穷。而随着这些新
技术的涌现，WiMAX网络也逐渐成为下一代通信系统的竞争者。很多人认为WiMAX即使无法最终
取代3G，也将是构建未来4G网络的基础，因此很多国际通信设备厂商对于正在兴起的WiMAX寄予
厚望，北电网络甚至放弃了传统3G的研发而专攻WiMAX。 -In the communications network, access technology throughout the development of hot spots. From midnight, frequency division, code assigned to the current air separation, from TDMA, CDMA to OFDMA, from a single antenna to the smart antennas, advanced technology with each passing day, one after another. With the emergence of these new technologies, WiMAX network is becoming the next generation of communication systems competitors. Many people think that WiMAX if not eventually replace 3G, will also be building a foundation for future 4G networks, so many international communications equipment manufacturers who are high hopes for the emergence of WiMAX, Nortel Networks or even to abandon the traditional 3G research and development and specializing in WiMAX.
Platform: |
Size: 202752 |
Author: yangyin |
Hits:
Description: 3G/B3G核心技术丛书-mimo关键技术，王裕民编
附录的源程序-ofdm mimo simulation
Platform: |
Size: 164864 |
Author: 冯振华 |
Hits:
Description: ofdm 3g技术仿真 子载波 信道估计 傅里叶变换
-ofdm ifft sub_carrier channel estimation
Platform: |
Size: 1024 |
Author: 立佳 |
Hits:
Description: OFDM是3G的关键技术之一。此代码实现了OFDM的各模块，并附有文档说明OFDM的原理和技术。-OFDM is the key 3G technologies. This code implements the various modules of the OFDM, along with documentation OFDM principles and techniques.
Platform: |
Size: 1387520 |
Author: 陈进 |
Hits:
Description: OFDM是3G 物理层的一个重要的技术，可以是未来的3GPP 和LTE的关键技术之一-OFDM is a 3G physical layer of an important technology，Could be the future 3GPP and LTE, one of the key technologies
Platform: |
Size: 10240 |
Author: chscn |
Hits:
Description: This article presents downlink initial synchronization
and cell identification algorithms for long term evolution (LTE) of third-generation (3G) mobile communication systems, which are based on synchronization channel (SCH) and cell specific pilot symbols, respectively.
Platform: |
Size: 504832 |
Author: HamidReza Mirsalari |
Hits:
Description: 近年来随着移动互联网业务和物联网业务的兴起与
发展，用户对移动宽带业务需求越来越旺盛，对移动通信
网络的接入速率和质量要求也越来越高，原有基于码分多
址（CDMA）的3G及其增强技术未来将无法满足业务发展
需要，因此3GPP及3GPP2组织自2004年开始启动长期
演进（LTE）/空口演进（AIE，后改名为超移动宽带UMB）项
目，旨在通过引入一些关键技术，如正交频分复用（OFDM）
调制技术、多入多出（MIMO）技术、混合自动重传请求
（HARQ）、全IP扁平化架构及动态带宽分配等实现网络变
革，达到以下所述的网络性能，为移动宽带多媒体业务持
续发展提供技术保障。-Abstract:To meet the needs of mobile broadband
services,LTE is being deployed and becoming ma－
tured,which includes key technologies such as
OFDM,high-order modulation,HARQ,enhanced
multi-antenna technologies,fast synchronization
technologies,scalable control channel design,adap－
tive resource allocation,interference suppression
technologies etc.Moreover,the discussion on LTE-
Advanced has started,where technologies being
considered includes aggregate multi-carrier,high－
er-order MIMO,smart relay,heterogeneous net－
work,multipoint collaboration as well as enhanced
interference management.
Platform: |
Size: 78848 |
Author: 涛 |
Hits:
Description: 码分多址(CDMA)技术作为第三代移动通信系统的核心技术，具有容量大、抗干扰能力强等优点。然而,传统的CDMA系统属于窄带扩频系统,它的数据速率比较低,不能胜任新一代移动通信系统
（beyond 3G）高速数据通信的需要。而多载波传输技术－正交频分复用（OFDM），作为后三代移动通信的核心技术，则具有高数据速率传输的特点。-Code Division Multiple Access (CDMA) technology as the third generation mobile communication system' s core technology, high capacity, anti-interference ability and so on. However, the traditional narrow-band CDMA system is spread spectrum system, and its relatively low data rate, can not do next-generation mobile communication systems (beyond 3G) high speed data communication needs. The multi-carrier transmission technology- orthogonal frequency division multiplexing (OFDM), after three generations of mobile communications as a core technology, the high data rate transmission characteristics.
Platform: |
Size: 774144 |
Author: w |
Hits:
Description: Orthogonal Frequency Division Multiplex or OFDM is a modulation format that is finding increasing levels of use in today s radio communications scene. OFDM has been adopted in the Wi-Fi arena where the 802.11a standard uses it to provide data rates up to 54 Mbps in the 5 GHz ISM (Industrial, Scientific and Medical) band. In addition to this the recently ratified 802.11g standard has it in the 2.4 GHz ISM band. In addition to this, it is being used for WiMAX and is also the format of choice for the next generation cellular radio communications systems including 3G LTE and UMB.
Platform: |
Size: 2048 |
Author: vihar |
Hits:
Description: talk about ofdm how its opreate
Platform: |
Size: 603136 |
Author: mosty |
Hits:
Description: MIMO-OFDM作为3G,4G的核心技术得到了广泛的关注-MIMO-OFDM as 3G, 4G core technology has been widespread concern
Platform: |
Size: 2048 |
Author: 流浪汉 |
Hits:
Description: 在现代无线通信技术中，扩频通信是一种具有较强抗干扰性能的技术，正交频分复用(OFDM)是一种具有较高数据传输速率和频谱利用率，并能有效对抗频率选择性衰落的多载波调制技术，因而将这二者结合起来构建系统势必会进一步提高系统的抗干扰和抗衰落性能，研究其结合技术也逐渐成为无线通信领域的热点。随着3G的兴起，即将推出的LTE也将采用OFDM技术（正交频分多路复用）。
由于OFDM的多载波特性，使得直接序列扩频技术和跳频技术能够与OFDM技术进行有效的结合。在本文中,我们研究了OFDM）以及相关抗干扰抗衰落技术。同时用matlab进行了仿真，仿真结果表明，本文提出的ICI干扰消除技术在ofdm中起到了很好的效果。
-In modern wireless communication technologies, spread spectrum communication is a kind of strong anti-jamming technology, the performance of orthogonal frequency division multiplexing (OFDM) is a kind of high data rate and spectrum efficiency, and can be effective against frequency selective fading of multi-carrier modulation technology, and combine the two build system is bound to further improve the system s anti-interference and decay resistance, and study the combining technology also gradually become a hot spot in the field of wireless communications. With the development of 3 g, the upcoming LTE will also use OFDM (orthogonal frequency division multiplexing) technology.
Because OFDM multi-carrier characteristic, the direct sequence spread spectrum and frequency hopping technology can be combined with OFDM technology effectively. In this article, we studied the OFDM technology) and related anti-interference resistance to decline. Matlab simulation was carried out at the same tim
Platform: |
Size: 237568 |
Author: wfyan |
Hits:
Description: 扩频通信在现代无线通信技术中是一种具有较强抗干扰性能的技术，正交频分复用(OFDM)一种具有较高数据传输速率和频谱利用率，并能有效对抗频率选择性衰落的多载波调制技术，因而将这二者结合起来构建系统势必会进一步提高系统的抗干扰和抗衰落性能，研究其结合技术也逐渐成为无线通信领域的热点。随着3G的兴起，即将推出的LTE也将采用OFDM技术（正交频分多路复用）。
由于OFDM的多载波特性，使得直接序列扩频技术和跳频技术能够与OFDM技术进行有效的结合。在本文中,我们研究了OFDM）以及相关抗干扰抗衰落技术。同时用matlab进行了仿真，仿真结果表明，本文提出的ICI干扰消除技术在ofdm中起到了很好的效果。
-In modern wireless communication technologies, spread spectrum communication is a kind of strong anti-jamming technology, the performance of orthogonal frequency division multiplexing (OFDM) is a kind of high data rate and spectrum efficiency, and can be effective against frequency selective fading of multi-carrier modulation technology, and combine the two build system is bound to further improve the system s anti-interference and decay resistance, and study the combining technology also gradually become a hot spot in the field of wireless communications. With the development of 3 g, the upcoming LTE will also use OFDM (orthogonal frequency division multiplexing) technology.
Platform: |
Size: 489472 |
Author: wfyan |
Hits:
Description: 于正交频分复用(OFDM)存在由带外辐射过高、峰均比(PAPR)过大等缺点，面向第5代移动通信(5G)的第3代合作伙伴计划(3GPP)的新无线空口(NR)标准，各大通信厂商都提出了包括滤波正交频分复用(Filtered-OFDM)、加窗OFDM、滤波器组OFDM(FB-OFDM)等新波形技术。考虑到5G更高的通信速率及带宽需求,并需适用于6 GHz以，上的高频通信(尤其是毫米波频段) ,5G候选波形需要更高的时频效率和更优的带外辐射特性,以满足5G通信的要求"。(Due to the shortcomings of orthogonal frequency division multiplexing (OFDM), such as excessive out of band radiation and high peak to average ratio (PAPR), new wireless air interface (NR) standard for 3G Partner Program (3GPP) of 5g mobile communication has been proposed by major communication manufacturers, including filtered OFDM, windowed OFDM, filter bank OFDM, etc. Considering the higher communication rate and bandwidth requirements of 5g, and being suitable for high frequency communication (especially millimeter wave band) above 6 GHz, 5g candidate waveform needs higher time-frequency efficiency and better out of band radiation characteristics to meet the requirements of 5g communication.)
Platform: |
Size: 632832 |
Author: 4dsa5 |
Hits: