Journal
CHINA COMMUNICATIONS
Volume 14, Issue 11, Pages 269-278Publisher
CHINA INST COMMUNICATIONS
DOI: 10.1109/CC.2017.8233666
Keywords
massive multiple-input multiple-output (MIMO); accelerated overrelaxation (AOR) iterative method; minimum mean square error (MMSE); convergence; complexity
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Funding
- key project of the National Natural Science Foundation of China [61431001]
- Huawei Innovation Research Program
- 5G research program of China Mobile Research Institute [[2015] 0615]
- open research fund of National Mobile Communications Research Laboratory Southeast University [2017D02]
- Key Laboratory of Cognitive Radio and Information Processing, Ministry of Education (Guilin University of Electronic Technology)
- Foundation of Beijing Engineering and Technology Center for Convergence Networks and Ubiquitous Services
- Keysight
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Massive multiple-input multiple-output (MIMO) system is capable of substantially improving the spectral efficiency as well as the capacity of wireless networks relying on equipping a large number of antenna elements at the base stations. However, the excessively high computational complexity of the signal detection in massive MIMO systems imposes a significant challenge for practical hardware implementations. In this paper, we propose a novel minimum mean square error (MMSE) signal detection using the accelerated overrelaxation (AOR) iterative method without complicated matrix inversion, which is capable of reducing the overall complexity of the classical MMSE algorithm by an order of magnitude. Simulation results show that the proposed AOR-based method can approach the conventional MMSE signal detection with significant complexity reduction.
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