A Hybrid Polarimetric Wide-Band Beam-former Architecture for 5G mm-Wave Communications

Konferenz: WSA 2016 - 20th International ITG Workshop on Smart Antennas
09.03.2016 - 11.03.2016 in München, Deutschland

Tagungsband: ITG-Fb. 261: WSA 2016

Seiten: 8Sprache: EnglischTyp: PDF

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Dupleich, Diego; Haefner, Stephan; Robert Mueller,; Schneider, Christian; Thomae, Reiner (Technische Universität Ilmenau, 98684 Ilmenau, Germany)
Luo, Jian (Huawei Technologies Düsseldorf GmbH, 80992 München, Germany)

Beam-forming at millimeter wave frequencies (mmwave) is a key technology to fulfill the fifth generation (5G) high data rate requirements. In this paper, we describe a novel hybrid architecture for mm-wave beam-forming, which addresses the mm-wave specific propagation channel characteristics that are identified in recent measurement campaigns. This architecture leverages baseband processing both in analog and digital domain. By enabling multi-beam beam-forming and compensating the polarization mismatch, delay difference (of different beams) and optionally the Doppler shifts (depending on mobility) of the beams at the Tx, a coherent summation of the signals in different beams can be realized, allowing to maximize the signal-to-noise ratio (SNR) and reduce the Rx complexity. Simulations based on measured channels in a typical large indoor scenario have been used to sustain the effectiveness of the proposed beam-forming architecture.