公开(公告)号：US20140314165A1

公开(公告)日：2014-10-23

申请号：US13965335

申请日：2013-08-13

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyung Jung KIM ,  Chang-Joo KIM ,  Jin Young KIM ,  Seung-Ho CHOI

IPC: H04L27/26

CPC classification number: H04L27/2678 ,  H04L27/2666

Abstract: A method provides an identifying OFDM communication signal using OFDM symbol estimation. In view of the above, the present invention provides an apparatus and method for identifying an OFDM communication signal using an OFDM symbol estimation, which is capable of analyzing the OFDM signal with a high accuracy in a cognitive radio technique, thereby identifying the OFDM signal from a heterogeneous communication signal.

Abstract translation: 一种方法使用OFDM符号估计提供识别OFDM通信信号。 鉴于上述情况，本发明提供了一种使用OFDM符号估计来识别OFDM通信信号的装置和方法，其能够在认知无线电技术中以高精度分析OFDM信号，从而识别来自 异构通信信号。

公开(公告)号：US20130266314A1

公开(公告)日：2013-10-10

申请号：US13846650

申请日：2013-03-18

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seok-Jin LEE ,  Jin Young KIM

IPC: H04B10/2507

CPC classification number: H04B10/2507 ,  H04B10/116

Abstract: A visible light communication (VLC) transmitting apparatus modulates source data to an orthogonal frequency division multiplexing (OFDM) symbol according to an OFDM modulation method, inserts a diffusion code that is allocated to the VLC transmitting apparatus into a frequency axis of the OFDM symbol, converts the OFDM symbol in which the diffusion code is inserted to a visible light modulation signal, and transmits the converted visible light modulation signal. Thereby, a signal of the VLC transmitting apparatus in which a VLC receiving apparatus wants can be easily detected.

Abstract translation: 可视光通信（VLC）发送装置根据OFDM调制方式将源数据调制为正交频分复用（OFDM）符号，将分配给VLC发送装置的扩散码插入OFDM符号的频率轴， 将其中插入扩散码的OFDM符号转换为可见光调制信号，并发送经转换的可见光调制信号。 由此，能够容易地检测到VLC接收装置想要的VLC发送装置的信号。