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학술지 Hybrid Beam-Forming and Beam-Switching for OFDM Based Wireless Personal Area Networks
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저자
윤석현, 전태현, 이우용
발행일
200910
출처
IEEE Journal on Selected Areas in Communications, v.27 no.8, pp.1425-1432
ISSN
0733-8716
출판사
IEEE
DOI
https://dx.doi.org/10.1109/JSAC.2009.091012
협약과제
09ZR1600, 유비쿼터스 인프라 연구, 김대식
초록
In this paper, we propose a hybrid beam-forming and beam-switching technique for OFDM based wireless personal area networks (WPAN). In order to compromise between performance and computational cost and overheads for the channel side information feedback, the proposed system employs hybrid beam-forming and beam-switching, where the block beam-switching using a predefined beam codebook is used at the transmitter while the optimum per-subcarrier beam-forming is used at the receiver. To verify the performance of the proposed scheme, the effective SNR gain over the single antenna transmission system is investigated along with the spectral efficiency bound for some of the channels developed by the IEEE 802.15.3c task group. For comparison, the performance of the optimum per-subcarrier beam-forming and the block beam-switching are also examined. © 2009 IEEE.
키워드
Beam-forming, Beam-switching, OFDM, Wireless personal area network (WPAN)
KSP 제안 키워드
Beam switching, Channel Side Information, Effective SNR, IEEE 802.15.3c, Information feedback, Spectral efficiency(SE), Switching technique, Transmission system, Wireless personal area network(WPAN), computational cost, hybrid beamforming