Abstract
AbstractIn this paper, a low‐power‐consumption massive multiple‐input and multiple‐output (MIMO) scheme with an integrated multibeam antenna array is proposed for the green fifth‐generation (5G) communication base stations. The referenced antenna array includes 8 × 16 dual‐polarized antennas with Butler matrix networks, leading to low radiofrequency (RF) complexity and low consumption. The measured results demonstrate that the antenna array achieves four beam clusters with a 45° coverage in elevated plane, with gain of 15.4 dBi at 3.6 GHz. Based on this, the generated beam clusters and corresponding RF chains can be switched independently according to the real‐time user scenario. It is analyzed that the consumption for both RF chains and computation can be reduced with a similar channel capacity compared with the conventional phased array. With the merits of low complexity and low consumption, the proposed massive MIMO scheme exhibits promising usage for green 5G base station applications.
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