Title :
Subcarrier Suppressed Transmission for OFDMA in Satellite/Terrestrial Integrated Mobile Communication System
Author :
Mashino, Jun ; Sugiyama, Takatoshi
Author_Institution :
NTT Access Network Service Syst. Labs., NTT Corp., Yokosuka, Japan
Abstract :
In this paper, we propose subcarrier suppressed transmission for OFDMA (Orthogonal Frequency Division Multiple Access) in order to improve frequency utilization efficiency of STICS (Satellite/Terrestrial Integrated Mobile Communication System), which shares the same frequency band between satellite and land mobile systems. In OFDMA introducing channel rotation scheme, the proposed scheme can achieve as similar multi-user performance as single user. By computer simulation, we show the interference suppression performance and clarify the improvement ratio of the total average spectral efficiency.
Keywords :
OFDM modulation; frequency allocation; frequency division multiple access; interference suppression; land mobile radio; mobile satellite communication; multiuser channels; OFDMA; STICS; channel rotation scheme; frequency utilization efficiency; interference suppression; land mobile system; orthogonal frequency division multiple access; satellite-terrestrial integrated mobile communication system; spectral efficiency; subcarrier suppressed transmission; Bandwidth; Forward error correction; Interference suppression; Measurement; Mobile communication; OFDM; Satellites;
Conference_Titel :
Communications (ICC), 2011 IEEE International Conference on
Conference_Location :
Kyoto
Print_ISBN :
978-1-61284-232-5
Electronic_ISBN :
1550-3607
DOI :
10.1109/icc.2011.5963267
