Beamforming via Array Pattern Synthesis for Millimeter Wave NOMA Downlink Transmission
- Authors
- Lee, Jong-Ho; Song, Jiho
- Issue Date
- Dec-2018
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- NOMA; beamforming; semidefinite programming; power allocation
- Citation
- IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, v.67, no.12, pp.12363 - 12367
- Journal Title
- IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
- Volume
- 67
- Number
- 12
- Start Page
- 12363
- End Page
- 12367
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/39135
- DOI
- 10.1109/TVT.2018.2871757
- ISSN
- 0018-9545
- Abstract
- In this paper, we exploit the concept of array pattern synthesis to design cluster beamformers with partial channel state information for non-orthogonal multiple access downlink multiuser transmission in millimeter wave channels. Using the information on angle-of-departure region for each user, we formulate an array pattern nulling problem to design each cluster beamformer for minimizing inter-cluster interferences, which is solved by using semidefinite programing. Further, we exploit linear programing to solve a power allocation problem for each user in the cluster to achieve a target signal-to-interference-and-noise ratio. Numerical results are presented to verify the validity of the proposed schemes.
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