Reduced complexity turbo equalization using a dynamic Bayesian network

Show simple item record Myburgh, Hermanus Carel Olivier, Jan Corne Van Zyl, A.J. (Gusti) 2013-03-20T13:44:06Z 2013-03-20T13:44:06Z 2012-07-09
dc.description Additional file 1: DBN-TE Pseudocode algorithm. (a) DBN-TE function pseudocode. (b) FORWARD MESSAGE function pseudocode. (c) BACKWARD MESSAGE function pseudocode. (d) FORWARD BACKWARD MESSAGE function pseudocode. (e) LLR ESTIMATES function pseudocode. en
dc.description.abstract It is proposed that a dynamic Bayesian network (DBN) is used to perform turbo equalization in a system transmitting information over a Rayleigh fading multipath channel. The DBN turbo equalizer (DBN-TE) is modeled on a single directed acyclic graph by relaxing the Markov assumption and allowing weak connections to past and future states. Its complexity is exponential in encoder constraint length and approximately linear in the channel memory length. Results show that the performance of the DBN-TE closely matches that of a traditional turbo equalizer that uses a maximum a posteriori equalizer and decoder pair. The DBN-TE achieves full convergence and near-optimal performance after small number of iterations. en
dc.description.librarian am2013 en
dc.description.librarian ai2013
dc.description.uri en
dc.identifier.citation Myburgh HC, Olivier, JC & Van Zyl, A 2012," Reduced complexity turbo equalization using a dynamic Bayesian network", EURASIP Journal on Advances in Signal Processing,2012, 2012:136. en
dc.identifier.issn 1687-6172
dc.identifier.other 10.1186/1687-6180-2012-136
dc.language.iso en en
dc.publisher Hindawi Publishing Corporation en
dc.rights © 2012 Myburgh et al.; licensee Springer. This is an Open Access article distributed under the terms of the Creative Commons Attribution License en
dc.subject Turbo equalizer en
dc.subject Dynamic Bayesian network en
dc.subject Rayleigh fading en
dc.subject.lcsh Signal processing en
dc.subject.lcsh Bayesian statistical decision theory en
dc.subject.lcsh Equalizers (Electronics) en
dc.subject.lcsh Radio -- Transmitters and transmission -- Fading en
dc.subject.lcsh Rayleigh model en
dc.title Reduced complexity turbo equalization using a dynamic Bayesian network en
dc.type Article en

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