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Energy-Efficient Hybrid Precoding Scheme Based on Antenna Selection Technology in Massive Multiple-Input Multiple-Output Systems
المؤلفون المشاركون
المصدر
International Journal of Antennas and Propagation
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-12، 12ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-05-02
دولة النشر
مصر
عدد الصفحات
12
التخصصات الرئيسية
الملخص EN
Hybrid precoding is a promising technology for massive multiple-input multiple-output (MIMO) systems.
It can reduce the number of radio frequency (RF) chains.
However, the power consumption is still very high owing to the large-scale antenna array.
In this paper, we propose an energy-efficient precoding scheme based on antenna selection technology.
The precoding scheme greatly increases the energy efficiency (EE) of the system.
In the first step, we derive an exact closed-form expression of EE.
Meanwhile, we further study the relationship between the number of transmit antennas and EE on the basis of the exact closed-form expression of EE.
We prove that there exists an optimal value.
When the number of transmit antennas equals to the value, the EE of the system can reach the maximum by a proper hybrid precoding scheme.
Then, we propose an antenna selection algorithm to select antennas from the transmit antennas.
And the number of selected antennas equals to the optimal value.
Subsequently, we design the analog precoder based on a codebook to maximize the equivalent channel gain.
At last, we further improve the EE by baseband digital precoding.
The precoding algorithm we proposed offers a compromise between spectral efficiency (SE) and EE in millimeter wave (mmWave) massive MIMO systems.
Finally, simulation results validate our theoretical analysis and show that a substantial EE gain can be obtained over the precoding scheme we proposed without large performance loss.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Ding, Jian Jun& Jiang, Jing. 2019. Energy-Efficient Hybrid Precoding Scheme Based on Antenna Selection Technology in Massive Multiple-Input Multiple-Output Systems. International Journal of Antennas and Propagation،Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1157400
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Ding, Jian Jun& Jiang, Jing. Energy-Efficient Hybrid Precoding Scheme Based on Antenna Selection Technology in Massive Multiple-Input Multiple-Output Systems. International Journal of Antennas and Propagation No. 2019 (2019), pp.1-12.
https://search.emarefa.net/detail/BIM-1157400
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Ding, Jian Jun& Jiang, Jing. Energy-Efficient Hybrid Precoding Scheme Based on Antenna Selection Technology in Massive Multiple-Input Multiple-Output Systems. International Journal of Antennas and Propagation. 2019. Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1157400
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1157400
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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