DocumentCode
125906
Title
Half symbol OFDM modulation
Author
Jiafang Kang ; Hongxing Wang ; Peilin Zhong ; Chuanhui Liu ; Zhiyong Zhao
Author_Institution
Dept. of Electron. & Inf. Eng., Naval Aeronaut. & Astron. Univ., Yantai, China
fYear
2014
fDate
16-23 Aug. 2014
Firstpage
1
Lastpage
4
Abstract
Based on the symmetry characteristic of subcarriers in the traditional orthogonal frequency division multiplexing (OFDM) system, we propose a half symbol OFDM (HS-OFDM) modulation method to further improve the bandwidth efficiency of communication system, the method applicable to OFDM systems whose subcarriers are modulated by BPSK or PAM. The spectra overlap percentage of adjacent subcarriers is raised from 50% to 75%, and the bandwidth efficiency upper limit of the passband OFDM system is raised from 1Baud/Hz to 2Baud/Hz, which is twice the efficiency of the traditional OFDM system.
Keywords
OFDM modulation; phase shift keying; pulse amplitude modulation; BPSK; HS-OFDM modulation method; PAM; bandwidth efficiency; half symbol OFDM modulation method; orthogonal frequency division multiplexing system; Bandwidth; Binary phase shift keying; Fourier transforms; Frequency modulation; OFDM; Time-frequency analysis;
fLanguage
English
Publisher
ieee
Conference_Titel
General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI
Conference_Location
Beijing
Type
conf
DOI
10.1109/URSIGASS.2014.6929271
Filename
6929271
Link To Document