On the Correlation of OFDM Symbol Powers:Some Observations, Derivations and Application

机译：OFDM符号功率的相关性：一些观察，推导和应用

获取原文

获取原文并翻译 | 示例

页面导航

摘要
著录项
相似文献
相关主题

摘要

Orthogonal Frequency DivisionMultiplexingrn(OFDM) has proved promising for highrndata rate transmission in frequency selectivernfading channels. One major disadvantage ofrnOFDM signal is its high peak-to-average powerrnratio which leads to nonlinear distortion and/orrnlow transmitter power efficiency. In this paperrnwe investigate the peak power distribution forrnOFDM systems based on the following observation:rnWhile the time domain OFDM symbolsrnmay be considered as uncorrelated, their powersrnare in general correlated. Assume mutually independentrnfrequency domain input symbols, wernderive rigorously the power correlation structurernof OFDM symbols for both circular and noncircularrnconstellations. For circularly modulatedrnsymbols, the symmetry of the power correlationrnstructure allows us to construct an improved Bonferronirnbound for peak power distribution. Thernobtained closed-form bound turns out to be veryrntight even for a small number of subcarriers. Forrnnon-circular constellation, we show that the outputrnpower sequence is no longer wide sense stationary.rnIn particular, we show that even asymptotically,rnthe OFDM symbols at some specifiedrntime instances do not approach a Gaussian distribution.

机译：正交频分多路复用（OFDM）已被证明在频率选择性衰落信道中以高数据速率传输很有希望。 OFDM信号的一个主要缺点是其峰均功率比高，导致非线性失真和/或发射机功率效率低。在本文中，我们基于以下观察来研究OFDM系统的峰值功率分布：时域OFDM符号可以被认为是不相关的，但它们的功率通常是相关的。假设相互独立的频域输入符号，对于环形和非环形星座，严格地对OFDM符号的功率相关结构进行了精确的推导。对于循环调制符号，功率相关结构的对称性使我们能够构造一个改进的Bonferronirnbound来实现峰值功率分配。即使对于少量的子载波，Thernobtained的封闭形式边界也非常紧密。对于非圆形星座，我们证明了输出功率序列不再是广义上的平稳。特别是，我们证明了即使渐近地，在某些特定时间实例中的OFDM符号也不会接近高斯分布。

著录项

来源
《37th annual conference on information sciences and systems (CISS 2003)》|2003年|p.1-6|共6页
会议地点 Baltimore MD(US);Baltimore MD(US)
作者
Hao Wang; Biao Chen;
展开▼
作者单位

Department of Electrical Engineering and Computer ScienceSyracuse University121 Link HallSyracuse, NY 13244email: hwang08@ecs.syr.edu;

Department of Electrical Engineering and Computer ScienceSyracuse University121 Link HallSyracuse, NY 13244email: bichen@ecs.syr.edu.;

展开▼
会议组织
原文格式 PDF
正文语种 eng
中图分类通信;计算技术、计算机技术;
关键词

相似文献

外文文献
中文文献
专利

1. Symbol-by-Symbol Based Multilevel Transmit Power Control for OFDM Based Adaptive Modulation under High Mobility Terminal Conditions [J] . Tomoaki YOSHIKI, Seiichi SAMPEI, Norihiko MORINAGA IEICE Transactions on Communications . 2003,第1期

机译：高移动性终端条件下基于符号的基于符号的多级发射功率控制，用于基于OFDM的自适应调制
2. On the performance of a maximum likelihood method with delayed correlation for the coarse carrier frequency offset estimation of OFDM signals with multiple preamble symbols [J] . In-Hang Chung, Ming-Ching Yen Wireless Networks . 2010,第3期

机译：具有延迟相关的最大似然方法在具有多个前导符号的OFDM信号的粗载波频率偏移估计中的性能
3. Symbol-wise beamforming for MIMO-OFDM transceivers in the presence of co-channel interference and spatial correlation [J] . Pollok A., Cowley W.G., Letzepis N. Wireless Communications, IEEE Transactions on . 2009,第12期

机译：在存在同信道干扰和空间相关性的情况下MIMO-OFDM收发器的按符号波束形成
4. Design of OFDM Timing Synchronization Based on Correlations of Preamble Symbol [C] . Yunsi Ma, Sanwen Zhou, Chaoxing Yan, IEEE Vehicular Technology Conference . 2016

机译：基于前导码符号相关性的OFDM时序同步设计
5. High efficiency linear envelope tracking and envelope elimination and restoration power amplifier for WLAN OFDM applications. [D] . Wang, Feipeng. 2006

机译：用于WLAN OFDM应用的高效线性包络跟踪以及包络消除和恢复功率放大器。
6. Closed-Form Expression for the Symbol Error Probability in Full-Duplex Spatial Modulation Relay System and Its Application in Optimal Power Allocation [O] . Le Van Nguyen, Ba Cao Nguyen, Xuan Nam Tran, 2019

机译：全双工空间调制继电器系统中符号误差概率的闭合表达及其在最优功率分配中的应用
7. ( Symbol timing Offset Estimation for OFDM Using the 1 Symbol Offset Training Symbol and Controled CP Power) [O] . Youn Chul Ock, Yeong Ho Ha 2015

机译：（使用1符号偏移训练符号和控制Cp功率的OFDm符号定时偏移估计）

On the Correlation of OFDM Symbol Powers:Some Observations, Derivations and Application

摘要

著录项

相似文献

相关主题

期刊订阅