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EURASIP Journal on Advances in Signal Processing

, 2013:163

First Online: 27 October 2013Received: 18 March 2013Accepted: 20 September 2013

Abstract

For single-frequency network SFN transmission, the echoes coming from different transmitters are superimposed at the reception, giving rise to a frequency selective channel. Although multicarrier modulations lower the dispersion, the demodulated signal is sensitive to be degraded by inter-symbol interference ISI and inter-carrier interference ICI. In view of this, we use channel coding in conjunction either with filter bank multicarrier FBMC modulation or with orthogonal frequency division multiplexing OFDM. To deal with the loss of orthogonality, we have devised an interference-aware receiver that carries out a soft detection under the assumption that the residual interference plus noise IN term is Gaussian-distributed. To keep the complexity low, we propose to estimate the variance of the IN term by resorting to data-aided algorithms. Experimental results show that regardless of the method, FBMC provides a slightly better performance in terms of coded bit error rate than OFDM, while the spectral efficiency is increased when FBMC is considered.

Electronic supplementary materialThe online version of this article doi:10.1186-1687-6180-2013-163 contains supplementary material, which is available to authorized users.

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Autor: Marius Caus - Ana I Perez Neira - Markku Renfors

Fuente: https://link.springer.com/







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