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CFOsimutemp2varying
- carrier frequency offset CFO模擬-carrier frequency offset CFO simulation
ofdm_EM_channel
- 分析了相位噪声对正交频分复用(OFDM)系统的影响,发现相位噪声不仅产生 通用相角错误(CPE),而且还会产生载波间干扰(ICI),这都使OFDM系统的性能急剧恶 化,因此必须对CPE和ICI进行校正.文中给出了基于MSE准则的CPE校正方法,考虑到 ICI干扰主要来源于相邻信道,进而提出了基于LMS法则的自适应相邻信道干扰消除方 法.整个算法简单高效.仿真结果表明,所提出的算法大大改善了OFDM系统的性能-Analysis of phase noise on the ortho
MSE_compa4re
- Author: Vinay Uday Prabhu E-mail: vinay_u_prabhu@yahoo.co.uk Function: Comparison of the performances of the LS and the MMSE channel estimators for a 64 sub carrier OFDM system based on the parameter of Mean square error Assumptions: The
OFDM_Matlab
- The Matlab code privided will generate OFDM symbol and will save the received symbols in two log file. Agorithm will determine Start point and carrier frequency off-set as a Synchronization block.
frequency
- ofdm系统载波同步实现,程序完整正确,大家快来下载。-ofdm system, carrier synchronization, integrity of the process correctly, we Come to download.
sync1
- ofdm系统载波同步经典代码,ml算法正确实现,欢迎大家前来下载-ofdm system, the classic code carrier synchronization, ml algorithm is correctly implemented, we are happy to come to download
OFDMsystem
- 正交频分复用技术是近年来发展起来的新技术,在高速无线数据传输领域有很大的应用前景。文章在分析和总结相关文献的基础上,介绍了正交频分复用(OFDM)技术的发展历史,讨论了正交频分复用技术的基本原理和实现方法。通过分析表明,在高速无线通信中OFDM对于消除符号间干扰(ISI),降低系统的复杂度等方面具有很大优势。正交频分复用(OFDM)是一种多载波宽带数字调制技术,它能有效地克服传输中的多径干扰和消除码间串扰,适合于高速率的地面信道视频传输。本文就OFDM技术进行了较为详尽的分析,并对OFDM的传输
5
- 设计了一种具有异周期毗邻结构的新型循环前缀,提出了相应的OFDM 频偏估计算法。该异周期毗邻结 构循环前缀由CP1 和CP2 两部分构成,使OFDM 符号具有双周期特征。通过引入较短的CP1 ,牺牲极少的资源, 可以有效克服现有频偏估计方法中的固定频偏估计范围的缺陷,同时具有频偏估计范围大,精度高的特点。-This paper proposes a heter2cycle abutted CP st ructure and a two2step OFDM carrier f requen
eetop[1].cn_0470998210
- Multi-Carrier and Spread Spectrum Systems最新版本对OFDM wimax lte都有阐述-Multi-Carrier and Spread Spectrum Systems the latest version of the OFDM wimax lte has described
frequency_offset_concellication_of_OFDM
- ofdm系统的载波频偏干扰消除程序。算法在程序中有详尽的注释。算法性能优良。-ofdm system carrier frequency offset interference cancellation process. Algorithm are detailed in the program notes. Algorithm is excellent.
SNRlossduetofrequencyoffsetinOFDMmodulation
- Inter Carrier Interference (ICI) in OFDM due to frequency offset
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
10[1].1.1.66.2227
- In this paper, we present a novel data-based method for simultaneous Maximum Likelihood (ML) symbol and carrier-frequency o畇et estimation in Orthogonal frequencydivision multiplexing (OFDM) systems. Statistical properties introduced by the cyclic
LTEandLTE_Advanced
- 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
ddca
- OFDM技术做为4G的关键传输技术,得到了广泛重视。本matlab文件为适合于OFDM系统的动态子载波分配算法。目的是提高频谱使用效率。-dynamic sub-carrier allocation(matlab)
Rayleigh_ofdm
- carrier_count= 200 bits_per_symbol = 2 symbols_per_carrier = 50 loop=10 num=5 循环次数 10 子载波数 200 位数/ 符号 2 符号数/ 载波 50 训练符号数 5 循环前缀长度 T/4 调制方式 QAM 多径信道数 2(缺省) 信道最大时延 5 (单位数据符号) 仿真条件 收发之间严格同步 一个OFDM系统
danduo
- 用高阶累积量做的单载波和OFDM信号的识别的matlab全部源代码。对做这方面研究的人绝对会有帮助。-Cumulant to do with single-carrier and OFDM signals recognition matlab full source code. For people who do research in this area will definitely help.
RESEARCH_ON_TURBO_EQULIZATION
- 传统均衡器无法有效地同时对抗这两种信道衰落,而Turbo均衡技术作为一种联合信道均衡和信道译码的方法,能有效地对抗符号间干扰(ISI),提供迭代增益,提高接收机的整体性能。因此,本文根据下一代无线通信系统的设计要求,分别对单载波和OFDM系统的Turbo均衡算法进行了研究。 -Conventional equalizer can not effectively fight both at the same time fading, while the Turbo equalization a
MC_CDMA
- 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 commun