An improved CARI algorithm based on sliding window in MIMO-OFDM system

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dc.contributor.authorZhang Hui
dc.contributor.authorXia Liling
dc.contributor.authorDong Rongwei
dc.contributor.authorWang Huihui
dc.date.accessioned2020-03-31T07:32:10Z
dc.date.available2020-03-31T07:32:10Z
dc.date.issued2018
dc.description.abstractMIMO-OFDM is one of the core technologies in mobile communication system. As multicarrier modulation is adopted, the MIMO-OFDM system usually leads to high Peak-To-Average power ratio (PAPR), which can decrease the communication quality. The cross-antenna rotation and inversion (CARI) is an algorithm with better performance to reduce Peak-To-Average power ratio of MIMO-OFDM system. However, needing a large number of iterations is a shortage of CARI. The sub-optimal scheme of CARI – successive suboptimal CARI (SS-CARI) can reduce the number of iterations, but the PAPR reducing performance of it is lost largely. In view of this problem, a sub-optimal CARI method using sliding window to search for rotation and reverse combination is proposed in this paper. By using sliding window to search for the local optimal rotation and reverse combination, not only the overall traversal search can be avoided and the computational complexity of CARI algorithm can be reduced greatly, but also the PAPR reduction performance of SS-CARI can be improved. Simulation results show that a good trade-off between complexity of system and the PAPR reduction performance can be achieved by applying the proposed scheme.uk_UA
dc.identifier.citationAn improved CARI algorithm based on sliding window in MIMO-OFDM system / Zhang Hui, Xia Liling, Dong Rongwei, Wang Huihu // Управління розвитком складних систем : зб. наук. праць / Київ. нац. ун-т буд-ва і архітектури ; гол. ред. Лізунов П. П. – Київ : КНУБА, 2018. – № 36. – С. 193-198. - Бібліогр. : 10 назв.uk_UA
dc.identifier.issn2219-5300
dc.identifier.urihttps://repositary.knuba.edu.ua/handle/987654321/2050
dc.language.isoenuk_UA
dc.publisherКНУБАuk_UA
dc.subjectpeak to average power ratio (PAPR)uk_UA
dc.subjectMIMO-OFDM systemsuk_UA
dc.subjectcross-antenna rotation and inversion (CARI)uk_UA
dc.subjectsliding windowuk_UA
dc.subject.udc621.396.23uk_UA
dc.titleAn improved CARI algorithm based on sliding window in MIMO-OFDM systemuk_UA
dc.typeArticleuk_UA

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