The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
다운링크 다중 사용자 MIMO 시스템에서 선형 프리코딩의 주요 단점은 채널이 상호 연관될 때 전송 전력이 증가한다는 것입니다. 반면, 다운링크 다중 사용자 MIMO 시스템의 비선형 트렐리스 프리코딩은 원래 전송 시퀀스에 성형 시퀀스를 추가하여 전송 전력을 최소화할 수 있습니다. 그러나 기존의 트렐리스 프리코딩은 트렐리스 프리코딩 코드와 오류 정정 코드를 별도로 설계해야 하기 때문에 기존의 비트 인터리브 코딩 MIMO-OFDM 시스템에 직접 적용할 수 없습니다. 본 논문에서는 선형 프리코딩을 사용하는 원래 다중 사용자 MIMO-OFDM 시스템에서 사용되는 오류 정정 코드에 트렐리스 프리코딩을 삽입하는 방법을 제안했습니다. 이 접근 방식의 주요 장점은 원래 시스템용으로 설계된 사용자 단말기의 수신 절차를 격자 프리코딩을 지원하기 위해 오류 정정 디코더까지 변경할 필요가 없다는 것입니다. 컴퓨터 시뮬레이션은 제안된 격자 프리코딩이 2에서 2.5dB와 2dB의 개선을 제공한다는 것을 보여줍니다.
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Tsuguhide AOKI, Hideki OCHIAI, Ryuji KOHNO, "Combined Trellis Precoding and Error Correcting Codes in Multi-User MIMO-OFDM Systems" in IEICE TRANSACTIONS on Fundamentals,
vol. E93-A, no. 12, pp. 2663-2671, December 2010, doi: 10.1587/transfun.E93.A.2663.
Abstract: A major drawback with linear precoding in a downlink multi-user MIMO system is the increase in the transmit power when a channel is correlated. On the other hand, nonlinear trellis precoding in downlink multi-user MIMO systems is capable of minimizing the transmit power by adding a shaping sequence to the original transmit sequence. However, conventional trellis precoding cannot be directly applied to existing bit-interleaved coded MIMO-OFDM systems since the trellis precoding and error correcting codes should be designed separately. In this paper, we proposed to embed trellis precoding into the error correcting codes that are used in the original multi-user MIMO-OFDM system employing linear precoding. Major advantage of this approach is that the receiving procedure at user terminals designed for the original system need not be changed up to the error correcting decoder to support our trellis precoding. Computer simulations show that the proposed trellis precoding provides improvements of 2 dB and 2.5 dB in 2
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E93.A.2663/_p
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@ARTICLE{e93-a_12_2663,
author={Tsuguhide AOKI, Hideki OCHIAI, Ryuji KOHNO, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Combined Trellis Precoding and Error Correcting Codes in Multi-User MIMO-OFDM Systems},
year={2010},
volume={E93-A},
number={12},
pages={2663-2671},
abstract={A major drawback with linear precoding in a downlink multi-user MIMO system is the increase in the transmit power when a channel is correlated. On the other hand, nonlinear trellis precoding in downlink multi-user MIMO systems is capable of minimizing the transmit power by adding a shaping sequence to the original transmit sequence. However, conventional trellis precoding cannot be directly applied to existing bit-interleaved coded MIMO-OFDM systems since the trellis precoding and error correcting codes should be designed separately. In this paper, we proposed to embed trellis precoding into the error correcting codes that are used in the original multi-user MIMO-OFDM system employing linear precoding. Major advantage of this approach is that the receiving procedure at user terminals designed for the original system need not be changed up to the error correcting decoder to support our trellis precoding. Computer simulations show that the proposed trellis precoding provides improvements of 2 dB and 2.5 dB in 2
keywords={},
doi={10.1587/transfun.E93.A.2663},
ISSN={1745-1337},
month={December},}
부
TY - JOUR
TI - Combined Trellis Precoding and Error Correcting Codes in Multi-User MIMO-OFDM Systems
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 2663
EP - 2671
AU - Tsuguhide AOKI
AU - Hideki OCHIAI
AU - Ryuji KOHNO
PY - 2010
DO - 10.1587/transfun.E93.A.2663
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E93-A
IS - 12
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - December 2010
AB - A major drawback with linear precoding in a downlink multi-user MIMO system is the increase in the transmit power when a channel is correlated. On the other hand, nonlinear trellis precoding in downlink multi-user MIMO systems is capable of minimizing the transmit power by adding a shaping sequence to the original transmit sequence. However, conventional trellis precoding cannot be directly applied to existing bit-interleaved coded MIMO-OFDM systems since the trellis precoding and error correcting codes should be designed separately. In this paper, we proposed to embed trellis precoding into the error correcting codes that are used in the original multi-user MIMO-OFDM system employing linear precoding. Major advantage of this approach is that the receiving procedure at user terminals designed for the original system need not be changed up to the error correcting decoder to support our trellis precoding. Computer simulations show that the proposed trellis precoding provides improvements of 2 dB and 2.5 dB in 2
ER -