Wireless OFDM-OQAM with a Small Number of Subcarriers

Giovanni Garbo, Stefano Mangione, Vincenzo Maniscalco

Risultato della ricerca: Other

11 Citazioni (Scopus)

Abstract

Orthogonal frequency division multiplexing based on offset quadrature amplitude modulation (OFDM-OQAM) is a multicarrier signaling technique which trades off robustness for spectral efficiency when compared to conventional OFDM with a cyclic prefix. In this paper, a novel matrix model for passband OFDM-OQAM signaling with a small number of subcarriers over a multipath frequency selective fading channel is presented. Specifically, in OFDM-OQAM a frequency selective channel is divided into many smaller but still frequency selective overlapping channels, so approximating the frequency response of a subchannel by the channel frequency response sampled at the subcarrier frequency may be inadequate. Channel effects may be better characterized if the frequency response of each subchannel is represented as a Taylor expansion at the subcarrier frequency. Simulation results show how the matrix model implemented by means of this approximation is a suitable model for OFDM-OQAM with a small number of subcarriers.
Lingua originaleEnglish
Pagine187-192
Stato di pubblicazionePublished - 2008

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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