Low-complexity hybrid precoding and combining scheme based on array response vectors
| dc.contributor.author | Bahingayi, Eduard Elias | |
| dc.contributor.author | Lee, Kyungchun | |
| dc.date.accessioned | 2023-10-12T13:48:50Z | |
| dc.date.available | 2023-10-12T13:48:50Z | |
| dc.date.issued | 2020 | |
| dc.description | Abstract. Full text article available at https://doi.org/10.1109/WCNC45663.2020.9120599 | en_US |
| dc.description.abstract | The hybrid precoding and combining algorithms for mmWave massive multiple-input multiple-output (MIMO) systems must consider the trade-off between the complexity and performance of the system. Unfortunately, because of the unit-norm constraint imposed by the use of phase shifters, the optimization of the radio frequency (RF) precoder and combiner becomes a non-convex problem. As a consequence, the algorithm for hybrid precoding and combining design often incurs high complexity. This paper proposes a low-complexity algorithm for hybrid precoding and combining design based on array response vectors. The proposed algorithm considers a decoupled optimization scheme between the RF and baseband domains for the spectral efficiency-maximization problem. In the RF domain, we propose an incremental successive selection method to find a subset of array response vectors from a dictionary, which forms the RF precoding/combining matrices. For the digital domain, we employ singular-value decomposition (SVD) of the low-dimensional effective channel matrix to generate the digital baseband precoder and combiner. Through numerical simulation, we show that the proposed algorithm achieves nearoptimal performance with 89.9 % – 99.4% complexity reduction compared to the conventional state-of-the-art hybrid precoding and combining algorithm. | en_US |
| dc.identifier.citation | Bahingayi, E. E., & Lee, K. (2020, May). Low-Complexity Hybrid Precoding and Combining Scheme Based on Array Response Vectors. In 2020 IEEE Wireless Communications and Networking Conference (WCNC) (pp. 1-6). IEEE. | en_US |
| dc.identifier.other | URL: https://ieeexplore.ieee.org/abstract/document/9120599 | |
| dc.identifier.other | DOI: https://doi.org/10.1109/WCNC45663.2020.9120599 | |
| dc.identifier.uri | http://hdl.handle.net/20.500.12661/4186 | |
| dc.language.iso | en | en_US |
| dc.publisher | IEEE | en_US |
| dc.subject | Multiple-input multiple-output | en_US |
| dc.subject | MIMO | en_US |
| dc.subject | Radio frequency | en_US |
| dc.subject | RF | en_US |
| dc.subject | Precoding | en_US |
| dc.subject | RF precoding | en_US |
| dc.subject | Radio frequency precoding | en_US |
| dc.subject | RF domain | en_US |
| dc.subject | MIMO system | en_US |
| dc.title | Low-complexity hybrid precoding and combining scheme based on array response vectors | en_US |
| dc.type | Conference Proceedings | en_US |