正交频分复用系统中一种抗多径衰落的联合时频同步算法

刘程贞, 金蓬嘉, 吴学英 - 中国空间科学技术, 2011 - cqvip.com
在正交频分复用(Orthogonal frequency division multiplexing, OFDM) 通信系统中提出了一种
基于新颖训练序列的同步算法. 该训练序列只使用了一个OFDM 符号, 并且具有中心对称和前后 …

一种基于训练序列实现OFDM 时频同步的算法

于丰彩, 肖丽萍, 王凤娟 - 数字通信, 2011 - cqvip.com
针对OFDM 系统性能对同步偏差的敏感性, 在基于Park 算法的基础上, 提出了一种基于新训练
序列结构的OFDM 联合定时和频率同步算法. 利用新序列共轭对称的结构特点在时域中通过相关 …

BER analysis of uplink OFDMA in the presence of carrier frequency and timing offsets

K Raghunath, A Chockalingam - 2009 IEEE 20th International …, 2009 - ieeexplore.ieee.org
In uplink orthogonal frequency division multiple access (OFDMA), carrier frequency offsets
(CFO) and/or timing offsets (TO) of other users with respect to a desired user can cause …

A robust SFO estimation scheme for OFDM-based DRM with non-symmetric distributed pilots

YA Jung, SJ Kang, YH You - Wireless Personal Communications, 2016 - Springer
This paper proposes a robust sampling frequency offset (SFO) estimation scheme in an
orthogonal frequency division multiplexing based digital radio mondiale system with non …

Cramér-Rao bound for SAGE-based residual frequency offset estimation algorithm in OFDM systems

K Xu, YH Shen - Wireless personal communications, 2009 - Springer
Abstract The Cramér-Rao bound (CRB) is a powerful tool in estimation theory as it gives a
performance lower bound for parameter estimation problems. In this paper, a much tighter …

信噪比辅助的OFDM 系统剩余载波频偏估计算法

任光亮, 行江涛, 常义林 - 西安电子科技大学学报, 2008 - cqvip.com
提出了一种适合无线衰落信道的剩余载波频偏估计新算法. 该算法利用估计出的各个子信道信噪
比, 选择出高质量子信道, 再利用这些高质量子信道上的判决数据, 联合导频子载波上的数据共同 …

OFDM 基带接收机中残余同步误差的消除

胡星波, 黄煜梅, 洪志良 - 小型微型计算机系统, 2008 - cqvip.com
OFDM 基带接收机在跟踪阶段仍然残存着同步误差. 这些误差尽管数量微小,
但会使系统性能严重恶化. 本文提出了一种消除OFDM 接收机中残余同步误差的方案 …

Real-time OFDM receiver with robust frequency synchronization for visible Light communication

Q Hu, X Jin, W Liu, M Jin, Z Xu - 2019 Asia Communications …, 2019 - ieeexplore.ieee.org
To evaluate the OFDM transmission performance and signal reconstruction error with the
digital interpolation-based sampling frequency offset compensation for visible light …

Exact BER Expressions for BPSK OFDM System with Residual Frequency and Timing Offsets in Frequency Selective Rayleigh Fading Channels

Y Wang, ZP Zhang, YX Chen - 2012 IEEE 12th International …, 2012 - ieeexplore.ieee.org
This paper, by exploiting characteristic function (CHF) and Beaulieu series, evaluates bit
error rate (BER) of Orthogonal Frequency Division Multiplexing (OFDM) with Binary Phase …

[PDF][PDF] ANALYSIS OF DIFFERENT LENGTH OF SUB CHANNELS AND DIFFERENT ORDER OF MODULATION ON THE BASIS OF BIT ERROR RATE IN OFDM …

A Dwivedi, A Pathak - 2016 - researchgate.net
In order to accommodate a huge number of users under a single base station, their must be
some flexibility over the spectrum. Formerly we have a lot of multiplexing methods to …