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Title: Channel Estimation and Equalization for Asynchronous Single Frequency Networks
Authors: Silva, Fábio
Dinis, Rui
Carvalho, Paulo Montemuza
Keywords: Single frequency network
Broadcasting systems
Carrier synchronization
Issue Date: 2014
Publisher: IEEE
Citation: F. Silva, R. Dinis, P. Carvalho, Channel Estimation and Equalization for Asynchronous Single Frequency Networks, IEEE Trans. on Broadcasting, Vol. 60, No. 1, pp. 110 - 118, March, 2014
Abstract: Single carrier frequency-domain equalization (SC-FDE) modulations are known to be suitable for broadband wireless communications due to their robustness against severe time-dispersion effects and the relatively low envelope fluctuations of the transmitted signals. In this paper, we consider the use of SC-FDE schemes in broadcasting systems. A single frequency network transmission is assumed, and we study the impact of distinct carrier frequency offset (CFO) between the local oscillator at each transmitter and the local oscillator at the receiver. We propose an efficient method for estimating the channel frequency response and CFO associated to each transmitter and propose receiver structures able to compensate the equivalent channel variations due to different CFO for different transmitters. Our performance results show that we can have excellent performance, even when transmitters have substantially different frequency offsets.
Peer Reviewed: yes
metadata.dc.identifier.doi: 10.1109/TBC.2014.2301900
ISSN: 0018-9316
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Appears in Collections:DCT - Artigos/Papers

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