Details

Autor(en) / Beteiligte

• Hu, Su
• Wu, Gang
• Li, Shao-Qian

Titel

Adaptive pulse shaping filter and multiple access technology for OFDM/OQAM system

Ist Teil von

• Dian zi yu xin xi xue bao = Journal of electronics & information technology, 2012-05, Vol.34 (5), p.1214-1219

Erscheinungsjahr

2012

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The traditional CP-OFDM based multiple access technology still has two drawbacks, i.e., adding cyclic prefix reduces the spectrum efficiency and it is sensitive to the Doppler frequency shift. In this paper, the time-frequency localization of the Extended Gauss Function (EGF) based OFDM/OQAM system is investigated. Consequently, an adaptation scheme in the downlink OFDMA/OQAM system is proposed where the transmitter can choose reasonable spreading factor to match the channel propagation against the inter-symbol interference and inter-carrier interference. Finally, the adaptive scheme is extended to the OFDM/OQAM-based multiple access technology to optimize the system performance. Simulation results prove the effectiveness of the proposed method.