상세정보
학술대회
Sequential Pre-coding for a MIMO Hybrid ARQ
- 발행일
- 200904
- 출처
- Vehicular Technology Conference (VTC) 2009 (Spring), pp.1-5
- 출판사
- IEEE
- 초록
- While the conventional codebook is defined only for the initial transmission in the closed-loop MIMO system, this paper proposes a new retransmission structure with a sequence of multiple codebooks, rather than using a single identical codebook for every retransmission. The pre-coding matrices, in each codebook, are sequentially linked so that each one can be used for a sequential hybrid ARQ transmission attempt, without invoking any index feedback from the receiver. It has been shown that the proposed codebook structure provides a performance gain of more than 3dB over the conventional scheme in the long-term static channel.
- KSP 제안 키워드
- Closed-loop MIMO, Hybrid ARQ, MIMO system, Performance gain, pre-coding