一种基于子信道可靠度的HARQ技术
Sub-channel Reliability based HARQ Scheme
基于可靠度的HARQ（RB-HARQ）是近些年发展起来的一种新的增量冗余HARQ方案。传统的RB－HARQ都将关注点集中在错误比特上，本文在此基础上提出了一种基于子信道可靠度的HARQ方案，将可靠度的考量由比特扩展到OFDM系统的子信道上，利用子信道的质量来增强重传的效率。不难推测，信噪比（SNR）较低的信道相对不可靠，当需要重传时，如果优先考虑这些子信道上的数据，那么系统性能的提高会更为显著。文中比较了所提算法与传统RB-HARQ算法的性能，理论分析与仿真结果均显示，所提方案能够显著提高系统的吞吐量。
Reliability based HARQ is one emerging increment redundancy hybrid ARQ scheme, and conventional RB-HARQ schemes usually focus on the reliabilities of “weak bit”. In this paper ,we propose a sub-channel reliability based HARQ scheme, which extends the consideration of reliabilities from bits to sub-channels. Mathematic analysis and simulation results both show that the proposed scheme effectively enhances system throughput by exploiting the channel quality information
姜政、陈颖慧
无线通信通信
混合自动重传（HARQ）RB-HARQ正交频分复用（OFDM）
HARQRB-HARQOFDM
姜政,陈颖慧.一种基于子信道可靠度的HARQ技术[EB/OL].(2008-11-10)[2025-07-25].http://www.paper.edu.cn/releasepaper/content/200811-224.点此复制
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