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Near-Optimal MIMO Solutions in Wibro/WiFi/B3G Communication Standards

이광복|Sungjin kim|Kiho Kim|Hojin kim
에스케이텔레콤 (주) (SKTelecom)|2005.06|Telecommunications Review|제15권 제3호|pp. 422-433

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참고문헌

주제분류전자/정보통신공학

초록

Abstract

Recently, the industrial organizations have proposed various MIMO schemes in wireless communication standards. Major standard bodies include WiMAX/WiBro (IEEE 802.16d/e), WiFi (IEEE 802.11n), and HSDPA (3GPP). In this paper, we overview a number of selected MIMO techniques proposed by major industrial groups and investigate their performance optimality. We also present our novel multi-user MIMO scheme, of which the sum-rate performance approaches extremely close to the sum capacity of MIMO downlink channels when the number of users is larger than the number of transmit antennas. Furthermore, multi-channel diversity (MCD) in the proposed solution greatly reduces the amount of channel state information signaling, which is fed back from receivers to the transmitter in order to find optimal precoding structure at the transmitter.

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관련 논문AI추천

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