FPGA Design of a Coordinate Descent Data Detector for Large-Scale MU-MIMO
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Date
2016
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Conference Paper
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no
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Abstract
We propose a new, low-complexity data-detection algorithm and a corresponding high-throughput FPGA design for 3GPP LTE-based large-scale (or massive) multi-user (MU) multiple-input multiple-output (MIMO) wireless communication systems. Our algorithm performs approximate minimum mean-square error (MMSE) data detection using coordinate descent (CD), which enables near-MMSE performance at low computational complexity, even for systems with hundreds of antennas at the base station (BS). We design a high-throughput VLSI architecture for 3GPP LTE wideband systems with a deep and interleaved pipeline, which can be parametrized at design time to support various antenna configurations. Our CD-based data detector achieves 379Mb/s throughout, while using 24 k LUTs and 771 DSP units on a Xilinx Virtex-7 FPGA for a 128 BS antenna, 8 user large-scale MU-MIMO system.
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published
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2016 IEEE International Symposium on Circuits and Systems (ISCAS)
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1894 - 1897
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IEEE
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IEEE International Symposium on Circuits and Systems (ISCAS 2016)
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09695 - Studer, Christoph / Studer, Christoph