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- W2016331284 abstract "무선이동통신 시스템은 무선 채널상황에 맞게 변조 파라미터와 부호율 등을 적응적으로 변화시켜 성능 이득을 얻을 수 있는 다양한 전송기법을 채택해오고 있다. 그 중에서 재전송 기법과 오류정정부호의 패리티 양을 적응적으로 조절하여 전송하는 incremental redundancy hybrid ARQ (IR-HARQ) 방식은 시스템 수율 측면에서 효율적인 것으로 알려져 있으며 다양한 무선이동통신시스템에서 사용되고 있다. 본 논문에서는 이중 대각 패리티 구조를 갖는 블록 LDPC의 IR-HARQ 방식을 제안한다. IR-HARQ 설계 시 모부호에 의해 부호화된 비트의 전송 순서가 성능을 좌우하는 것을 고려하여 전송 우선순위를 정의하고 전송 패킷 구성 규칙을 제안한다. 제안한 방식의 성능 분석을 다양한 변조 파라미터 및 부호율에서 수행하였으며, 다중 안테나 모드에 따른 시스템 수율 성능을 제시한다. 성능 분석 결과를 통해 제안한 방식은 기존의 방식에 비해 성능 이득을 얻음을 확인할 수 있다. Mobile communication systems have been adopting link adaptive transmission schemes such as adaptive modulation and coding (AMC) and hybrid-ARQ (HARQ). Incremental redundancy (IR) HARQ scheme is known to be highly efficient in terms of throughput and power consumption and can be a good solution for mobile communication systems. In this paper, we propose an IR-HARQ scheme based on dual-diagonal parity-type block LDPC codes in which we define a transmission priority of coded bits and propose the sub-packet construction rule. We present the throughput performance of IR-HARQ with various modulation and coding and multi-antenna modes. Consequently, the proposed scheme provides the improvement of system throughput by elaborate link adaptation with CQI information." @default.
- W2016331284 created "2016-06-24" @default.
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- W2016331284 date "2013-08-30" @default.
- W2016331284 modified "2023-10-05" @default.
- W2016331284 title "Incremental Redundancy Hybrid ARQ (IR-HARQ) Scheme Using Block LDPC Codes" @default.
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- W2016331284 doi "https://doi.org/10.7840/kics.2013.38a.8.662" @default.
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