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- W2962713500 abstract "There is considerable interest in the combined use of millimeter-wave (mmwave) frequencies and arrays of massive numbers of antennas (massive MIMO) for next-generation wireless communications systems. A symbiotic relationship exists between these two factors: mmwave frequencies allow for densely packed antenna arrays, and hence massive MIMO can be achieved with a small form factor; low per-antenna SNR and shadowing can be overcome with a large array gain; steering narrow beams or nulls with a large array is a good match for the line-of-sight (LOS) or near-LOS mmwave propagation environments, etc. However, the cost and power consumption for standard implementations of massive MIMO arrays at mmwave frequencies is a significant drawback to rapid adoption and deployment. In this paper, we examine a number of possible approaches to reduce cost and power at both the basestation and user terminal, making up for it with signal processing and additional (cheap) antennas. These approaches include low-resolution Analog-to-Digital Converters (ADCs), wireless local oscillator distribution networks, spatial multiplexing and multi-streaming instead of higher-order modulation etc. We will examine the potential of these approaches in making mmwave massive MIMO a reality and discuss the requirements in terms of digital signal processing (DSP)." @default.
- W2962713500 created "2019-07-30" @default.
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- W2962713500 date "2017-10-01" @default.
- W2962713500 modified "2023-09-27" @default.
- W2962713500 title "mmWave massive MIMO with simple RF and appropriate DSP" @default.
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- W2962713500 doi "https://doi.org/10.1109/acssc.2017.8335183" @default.
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