JICCE (한국정보통신학회)
Current Result Document :
| 한글제목(Korean Title) |
Power Randomization Schemes for Random Beamforming Based MIMO Systems |
| 영문제목(English Title) |
Power Randomization Schemes for Random Beamforming Based MIMO Systems |
| 저자(Author) |
Bang Chul Jung
Kil-Young Sung
|
| 원문수록처(Citation) |
VOL 08 NO. 06 PP. 0651 ~ 0654 (2010. 12) |
한글내용
(Korean Abstract) |
|
영문내용
(English Abstract) |
In this paper, we propose two power randomization schemes for the random beamforming (RBF) based MIMO systems in cellular downlink. In the proposed system, a BS randomizes not only the pre-coding matrix but also the power allocation matrix, while the conventional RBF system allocates an equal power to each transmit stream. The proposed water-filling based power randomization scheme (Scheme-I) is proper in the low SNR values and the proposed random-power based randomization scheme (Scheme-II) is proper in the high SNR values. The proposed system with the power randomization outperforms the conventional RBF system which allocates the same power for each data stream. |
| 키워드(Keyword) |
Random beamforming
power allocation
MIMO
cellular system
scheduling
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| 파일첨부 |
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