Exploiting Low Complexity Beam Allocation in Multi-User Switched Beam Millimeter Wave Systems

Nair, Manish, Wang, Junyuan, Leiba, Yigal, Zhu, Huiling, Gomes, Nathan J. and Wang, Jiangzhou (2018) Exploiting Low Complexity Beam Allocation in Multi-User Switched Beam Millimeter Wave Systems. IEEE Access, 7. pp. 2894-2903. ISSN 2169-3536 DOI https://doi.org/10.1109/ACCESS.2018.2887003

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Switched-beam systems offer a promising solution for realizing multi-user communications at millimeter wave (mmWave) frequencies. A low-complexity beam allocation (LBA) algorithm has been proposed to solve the challenging problem of maximizing sum data-rates. However, there are practical limitations in mmWave systems, such as restrictions in the number of available radio frequency transceiver chains at the base station, sensitivity to sidelobe interference and the beam generation techniques. In this paper, using generalized beam-patterns, we present the maximum sum data-rates achievable in switched-beam mmWave systems compared with fixed-beam systems by applying LBA. Then, the impact on maximum sum data rates of actual beam-patterns, obtained from a practical mmWave lens antenna, which have higher and non-uniform sidelobes compared with the theoretical beams, is assessed. Finally, as a guide for practical wireless system design, benchmarks are established for relative sidelobe levels

Item Type: Article
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions: Computing and Information Systems
Date Deposited: 10 Jan 2019 14:36
URI: http://repository.edgehill.ac.uk/id/eprint/10964

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