LTE 기반 MU-MIMO 시스템에 구현한 빔포밍 알고리즘
- Title
- LTE 기반 MU-MIMO 시스템에 구현한 빔포밍 알고리즘
- Other Titles
- Implementation of a beamforming for LTE-based MU-MIMO system
- Author
- 최승원
- Keywords
- 빔포밍알고리즘; mumimo시스템; 역변환매트릭스; 어레이안테나; Beamforming; Array Antenna; MU-MIMO; Zero forcing; Lagrange
- Issue Date
- 2012-12
- Publisher
- 디지털산업정보학회
- Citation
- 디지털산업정보학회지, 2012, 8권, 4호, pp.121-127
- Abstract
- In this paper, we propose a new beamforming method which is used in Multiple User-Multiple Input Multiple Output (MU-MIMO) system. An experimental system consists of LTE based TDD base-station which has 2 MIMO elements each of which contains 10-array antennas and 2 mobile terminals each of which has a single antenna. We demonstrate that the Multiple Access Interference can further be reduced by appending a beamforming procedure in MU-MIMO system in which various users share a given channel resource. The proposed algorithm is the ordinary Lagrange beamforming algorithm combined with Zero-Forcing. It is demonstrated that the proposed beamforming method outperforms a conventional method which is the ZF at least by 8dB in terms of SNR through computer simulations. From experimental tests, we verify the feasibility of the proposed beamforming algorithm for realizing a practical LTE based TDD base-station for utilizing channel resources more efficiently.
- URI
- https://www.kci.go.kr/kciportal/ci/sereArticleSearch/ciSereArtiView.kci?sereArticleSearchBean.artiId=ART001726913https://repository.hanyang.ac.kr/handle/20.500.11754/70658
- ISSN
- 1738-6659
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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