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arXiv · 1804.07181

Beam Selection for MmWave Massive MIMO Systems Under Hybrid Transceiver Architecture

Qiu Shuang·Luo Kai·Jiang Tao
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Abstract

Hybrid analog/digital precoding is a promising technology to cut down hardware cost in massive multi-input multi-output (MIMO) systems at millimeter wave frequencies. In this letter, we propose a joint beam selection scheme for analog domain precoding under discrete lens array. By considering channel correlation among users, the proposed scheme is able to avoid inter-user interference and maximize system sum rate. Moreover, a bio-inspired ant colony optimization-based algorithm is proposed to obtain a near-optimal solution with dramatically reduced computational complexity. Finally, simulations show the advantages of the proposed scheme in improving system sum rate.

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Qiu Shuang, Luo Kai, Jiang Tao. 2018-04-19. Beam Selection for MmWave Massive MIMO Systems Under Hybrid Transceiver Architecture. https://arxiv.org/abs/1804.07181

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