Current Result Document :
| 한글제목(Korean Title) |
다중사용자 이중-홉 MISO 셀룰러 시스템에서 협력 전력 할당 기법 |
| 영문제목(English Title) |
Cooperative Power Allocation in Multi-User Dual-Hop MISO Cellular Systems |
| 저자(Author) |
조희남
김아영
이용환
Hee-Nam Cho
Ah-Young Kim
Yong-Hwan Lee
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| 원문수록처(Citation) |
VOL 19 NO. 01 PP. IVA2 ~ 0005 (2009. 04) |
한글내용
(Korean Abstract) |
This paper considers the allocation of transmit power in correlated multi-user dual-hop multiple-input singleoutput (MISO) cellular systems in a cooperative manner. In a dual-hop MISO relay channel, the transmit power between the dual-hop links needs to be allocated to maximize the end-to-end capacity according to the interference channel condition as well as the target channel condition. In fact, the end-to-end capacity of the dual-hop relay channel can be maximized by means of a max-min optimization under a constraint of sum power. The proposed scheme adaptively allocates the transmit power according to the average channel gain of the target channel and the correlation between the target and the interference channel. It is shown that the end-to-end capacity can be maximized by making the phase difference between the dual-hop MISO relay channels orthogonal. Finally, the performance of the proposed scheme is verified by computer simulation.
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영문내용
(English Abstract) |
This paper considers the allocation of transmit power in correlated multi-user dual-hop multiple-input singleoutput (MISO) cellular systems in a cooperative manner. In a dual-hop MISO relay channel, the transmit power between the dual-hop links needs to be allocated to maximize the end-to-end capacity according to the interference channel condition as well as the target channel condition. In fact, the end-to-end capacity of the dual-hop relay channel can be maximized by means of a max-min optimization under a constraint of sum power. The proposed scheme adaptively allocates the transmit power according to the average channel gain of the target channel and the correlation between the target and the interference channel. It is shown that the end-to-end capacity can be maximized by making the phase difference between the dual-hop MISO relay channels orthogonal. Finally, the performance of the proposed scheme is verified by computer simulation.
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