### 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 originale | English |
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Pagine | 187-192 |

Stato di pubblicazione | Published - 2008 |

### All Science Journal Classification (ASJC) codes

- Engineering(all)

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## Cita questo

Garbo, G., Mangione, S., & Maniscalco, V. (2008).

*Wireless OFDM-OQAM with a Small Number of Subcarriers*. 187-192.