Differential modulation for asynchronous two-way relay systems over frequency-selective fading channels

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dc.citation.epage2435en_US
dc.citation.issueNumber16en_US
dc.citation.spage2422en_US
dc.citation.volumeNumber16en_US
dc.contributor.authorSalim, A.en_US
dc.contributor.authorDuman, T. M.en_US
dc.date.accessioned2018-04-12T10:57:50Z
dc.date.available2018-04-12T10:57:50Z
dc.date.issued2016en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.description.abstractWe propose two schemes for asynchronous multi-relay two-way relay (MR-TWR) systems in which neither the users nor the relays know the channel state information. In an MR-TWR system, two users exchange their messages with the help of NR relays. Most of the existing works on MR-TWR systems based on differential modulation assume perfect symbol-level synchronization between all communicating nodes. However, this assumption is not valid in many practical systems, which makes the design of differentially modulated schemes more challenging. Therefore, we design differential modulation schemes that can tolerate timing misalignment under frequency-selective fading. We investigate the performance of the proposed schemes in terms of either probability of bit error or pairwise error probability. Through numerical examples, we show that the proposed schemes outperform existing competing solutions in the literature, especially for high signal-to-noise ratio values. Copyright © 2016 John Wiley & Sons, Ltd. Copyright © 2016 John Wiley & Sons, Ltd.en_US
dc.identifier.doi10.1002/wcm.2692en_US
dc.identifier.issn1530-8669
dc.identifier.urihttp://hdl.handle.net/11693/36938
dc.language.isoEnglishen_US
dc.publisherJohn Wiley and Sons Ltden_US
dc.relation.isversionofhttp://dx.doi.org/10.1002/wcm.2692en_US
dc.source.titleWireless Communications and Mobile Computingen_US
dc.subjectDifferential modulationen_US
dc.subjectOrthogonal frequency division multiplexingen_US
dc.subjectSynchronizationen_US
dc.subjectTwo-way relay channelsen_US
dc.titleDifferential modulation for asynchronous two-way relay systems over frequency-selective fading channelsen_US
dc.typeArticleen_US

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