دورية أكاديمية
Partially Coherent Channel Estimation Algorithm based on IR
| العنوان: | Partially Coherent Channel Estimation Algorithm based on IR |
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| المؤلفون: | Gui-yong LI, Ping-an LI, He-bin LI |
| المصدر: | Guangtongxin yanjiu, Vol 00, Iss 04, Pp 10-14 (2021) |
| بيانات النشر: | 《光通信研究》编辑部, 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Applied optics. Photonics |
| مصطلحات موضوعية: | millimeter wave, hybrid precoding, cpr, ir, Applied optics. Photonics, TA1501-1820 |
| الوصف: | For millimeter-wave large-scale Multiple-Input Multiple-Output (MIMO) systems with hybrid precoding, due to the hardware defects in the system, random phase shifts will be introduced in the received pilots, which will make the performance of traditional channel estimation algorithms become very poor. In some extreme conditions, even the channel information cannot be estimated. In order to solve this problem, this paper uses pilots from different radio frequency chains to have the same phase offset in the same time period, and pilots in different time periods have different phase offset characteristics to estimate the channel information with an Iterative Reweight (IR) based Partially Coherent-Compressive Phase Retrieval (PC-CPR) (IR-PC-CPR) algorithm. The algorithm first performs phase offset compensation on the received coherent pilots, and then uses an iterative reweight (IR) algorithm to estimate channel parameters to achieve high-precision channel estimation. The simulation results show that the algorithm proposed in this paper has better performance than the PC-CPR algorithm. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | Chinese |
| تدمد: | 1005-8788 58134492 |
| Relation: | http://www.gtxyj.com.cn/thesisDetails#10.13756/j.gtxyj.2021.04.003&lang=zh; https://doaj.org/toc/1005-8788 |
| DOI: | 10.13756/j.gtxyj.2021.04.003&lang=zh |
| DOI: | 10.13756/j.gtxyj.2021.04.003 |
| URL الوصول: | https://doaj.org/article/cfafe0aa58134492ac0576db4ca46c91 |
| رقم الأكسشن: | edsdoj.fafe0aa58134492ac0576db4ca46c91 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 10058788 58134492 |
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| DOI: | 10.13756/j.gtxyj.2021.04.003&lang=zh |