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dc.contributor.authorChen, Peng
dc.contributor.authorRong, Yue
dc.contributor.authorNordholm, Sven
dc.contributor.authorHe, Z.
dc.contributor.editorDoug Wilson
dc.identifier.citationChen, P. and Rong, Y. and Nordholm, S. and He, Z. 2015. Forward-Backward Block-wise Channel Tracking in High-speed Underwater Acoustic Communication, in Doug Wilson (ed), MTS/IEEE OCEANS 2015, Oct 19 2015. Washington, DC, USA: IEEE.

Block-by-block decision-directed channel tracking is a bandwidth efficient channel estimation method for coherent underwater acoustic (UA) communication. However, conventional forward-only decision-directed method suffers from error propagation where the system bit-error-rate (BER) increases with theinterval between the pilot sequence and data symbols. To mitigate the error propagation effect, in this paper, a forward-backward decision-directed algorithm is proposed to detect data blocks which are at large internal from the previous pilot sequence but close to the next one. The proposed algorithm is applied to detect data received during the experiment conducted in December 2012 in the Indian Ocean off the Rottnest Island, Western Australia. The results show that using the proposed algorithm, the average uncoded BER of the last data block in one frame is much lower than the BER yielded by the forward-only tracking method and is only sightly higher than the BER of the first data block.

dc.titleForward-Backward Block-wise Channel Tracking in High-speed Underwater Acoustic Communication
dc.typeConference Paper
dcterms.source.titleProceedings of the MTS/IEEE OCEANS 2015
dcterms.source.seriesProceedings of the MTS/IEEE OCEANS 2015
dcterms.source.conferenceMTS/IEEE OCEANS 2015
dcterms.source.conference-start-dateOct 19 2015
dcterms.source.conferencelocationWashington, DC, USA
dcterms.source.placePiscataway, NJ, USA
curtin.departmentDepartment of Electrical and Computer Engineering
curtin.accessStatusFulltext not available

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