Spectral Efficiency Improvement of 5G Massive MIMO Systems for High-Altitude Platform Stations by Using Triangular Lattice Arrays

被引：21
作者：
Dicandia, Francesco Alessio [1 ]
Genovesi, Simone [1 ]
机构：
[1] Univ Pisa, Dipartimento Ingn Informaz, I-56122 Pisa, Italy
来源：
SENSORS | 2021年 / 21卷 / 09期
关键词：
phased array; massive MIMO; 5G; wideband array; triangular grid; PHASED-ARRAYS; WAVE; ANTENNA; NETWORKS; COVERAGE; DESIGN; ENERGY; HAPS; GAIN;
D O I：
10.3390/s21093202
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The beneficial effects of adopting a triangular lattice on phased arrays with regular and periodic grids for high-altitude platform station (HAPS) systems are presented in the scenario of massive MIMO communications operating within the 5G NR n257 and n258 frequency bands. Assessment of a planar array with 64 elements (8 x 8) is provided for both a triangular lattice and a square one in terms of array gain, average sidelobe level (ASLL), and mutual coupling. Particular attention is devoted to illustrating the impact of the antenna array lattice at the system level by evaluating its significant merits, such as its spectral efficiency (SE) and signal-to-interference ratio (SIR). The better performance exhibited by the triangular lattice array in comparison to the square one makes it appealing for the 5G massive MIMO paradigm.
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页数：20
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