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SC-FDE with OQPSK-Type Schemes: An Efficient Transmission Technique for Broadband Wireless Systems

Dinis, R. ; Carvalho, P.

SC-FDE with OQPSK-Type Schemes: An Efficient Transmission Technique for Broadband Wireless Systems, Proc International Conf. on Computer Communications and Networks - ICCCN 2009, San Francisco, United States, Vol. 1, pp. 1 - 6, August, 2009.

Digital Object Identifier: 0

Abstract
This paper considers frequency-domain receiver design for OQPSK-type schemes. Since the I-Q interference can lead to significant performance degradation we propose an FDE design (frequency-domain equalization) where there is no I-Q interference in the sampling instants for the predominant OQPSK constellation. We also propose iterative FDEs with I-Q interference cancellation, as well as the cancellation of unintended OQPSK components.