Title :
A study on reducing spectrum edge of OFDM signal
Author :
Jaeho Lee;Woongshik You;O H Jintae
Author_Institution :
Future Technology Research Division, Electronics and Telecommunications Research Institute (ETRI), 138 Gajeongno, Yuseong-gu, Daejeon, South Korea
Abstract :
To reduce an adjacent channel interference (ACI) by sharpening the spectrum edges of the orthogonal frequency division multiplexing (OFDM) signal in the frequency domain, an windowing function is applied to the individual OFDM symbols in time domain. A commonly used windowing function is the raised cosine function with a roll-off factor. In this paper, the spectrum of an OFDM signal and -45 dB bandwidth have been investigated with respect to various roll-off factors used in the data-over-cable-service-interface-specifications (DOCSIS) 3.1 using OFDM.
Keywords :
"OFDM","Bandwidth","Delays","Frequency-domain analysis","Time-domain analysis","Simulation","Indexes"
Conference_Titel :
Information and Communication Technology Convergence (ICTC), 2015 International Conference on
DOI :
10.1109/ICTC.2015.7354689
