登录
首页 » PDF » 05441004

05441004

于 2011-11-05 发布 文件大小:698KB
0 184
下载积分: 1 下载次数: 16

代码说明:

  Multiple input multiple output techniques combined with orthogonal frequency division multiplexing (MIMO-OFDM) provide a promising approach for wireless systems. However, a serious drawback of the OFDM system is the high peak-toaverage power ratio (PAPR), which may severely affect the power efficiency of RF power amplifiers. In this paper, we propose a simple method to reduce the PAPR of MIMO-OFDM signals based on the use of unused subcarriers. Instead of processing the signals at each transmitter separately, a peak cancelling signal is generated at one antenna and is then applied to all the others with only simple modifications. Simulation has shown that a minimum 2 dB reduction in PAPR can be achieved for all transmit signals using this approach. As the signal processing is nearly all done at a single transmitter, repetition of the operations at each transmitter is avoided, and therefore the overall cost of the system can be significantly reduced.

文件列表:

05441004.pdf,732624,2011-11-03

下载说明:请别用迅雷下载,失败请重下,重下不扣分!

发表评论

0 个回复

  • sd_spi_cn
    说明:  关于sd卡在嵌入式应用中的资料,是网友亲自翻译的,适用于初用sd卡的爱好者(On the sd card applications in the embedded information is personally Netizen translation for the beginning of the lovers with sd card)
    2008-10-21 22:46:48下载
    积分:1
  • WSN
    There were downloaded documents wich can be very useful for those who exploring Wireless Sensor Networks. There given all the information and scripts to creat or build the model you need.
    2017-04-01 19:06:39下载
    积分:1
  • ikvei
    随机调制信号下的模拟ppm,结合PCA的尺度不变特征变换(SIFT)算法,包括主成分分析、因子分析、贝叶斯分析。( Random ppm modulated analog signal under Combined with PCA scale invariant feature transform (SIFT) algorithm, Including principal component analysis, factor analysis, Bayesian analysis.)
    2017-05-11 15:38:40下载
    积分:1
  • Cluster-Head-Selection-using-a-Two-Level-Fuzzy-Lo
    Cluster Head Selection using a Two-Level Fuzzy Logic in Wireless Sensor Networks
    2012-12-06 17:09:30下载
    积分:1
  • IEC-61850标准[中.完整版]
    说明:  IEC-61850标准分析完整中文版(自用)(IEC-61850 standard analysis)
    2020-08-18 16:08:21下载
    积分:1
  • M2M4method-SNR-estimation
    一种基于信号二阶四阶矩的信噪比估计方法,该文件中包含该方法的文章以及matlab程序。(This estimation method is based on the signal second-order signal-to-noise ratio of the fourth moment. The file contains a paper and a code.)
    2020-12-01 19:39:26下载
    积分:1
  • gprs
    介绍常用的AT指令,包括gpsr初始化,发短信等(Commonly used in the AT commands, including the gpsr initialization, send text messages, etc.)
    2010-03-03 22:25:12下载
    积分:1
  • OReillyGoogleHacks
    O Reilly Google Hackes is the most wanted book for SEO and SEF optmizations in the world. This is the full version in .pdf format
    2010-02-15 08:49:53下载
    积分:1
  • A-global-reconstruction-model
    已有的基于分块压缩感知的图像重构模型采用相同的测量矩阵以块 ×块的方式获取数据,解决了传统CS方法中测量矩阵所需存储量较大的问题,但由于采用分块重构,没有考虑 到图像的全局稀疏度,出现了大量的块效应。(Current image reconstruction models using block compressed sensing)
    2012-12-08 12:33:53下载
    积分:1
  • 118
    MPLS简介,主要介绍了MPLS的基本原理(Description of MPLS)
    2012-02-15 15:46:35下载
    积分:1
  • 696518资源总数
  • 104269会员总数
  • 42今日下载