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On the Design of Linear Receivers for SC-FDE Schemes Employing OQPSK Modulation

Luzio, M. ; Dinis, R. ; Montezuma, P. M.

On the Design of Linear Receivers for SC-FDE Schemes Employing OQPSK Modulation, Proc IEEE Vehicular Technology Conf. - VTC-Fall, Ottawa, Canada, Vol. I, pp. 1 - 6, September, 2010.

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Abstract
This paper considers the design of linear frequency-domain receivers with oversampling for OQPSK (Offset Quaternary Phase Shift Keying) signals. Based on a receiver structure able to eliminate the residual interference between in-phase (I) and quadrature (Q) components at the sampling instants, a method that minimizes the overall residual ISI (Inter-Symbol Interference) plus IQI (I-Q interference) is proposed. Therefore, this receiver significantly outperforms previous frequency-domain OQPSK receivers.