| 摘要: |
| 为提高系统的通过率及译码效率,高速可靠数据传输系统采用混合ARQ方案。本文提出了一种基于交织重组和星座重组的混合ARQ方案,分析了系统的通过率、误帧率及重传时延。通过仿真说明本方案可获得较大的通过率增益,减小重传延时,提高了系统的传输可靠性。 |
| 关键词: 正交频分复用技术,数据传输,混合ARQ,通过率,QAM,交织 |
| DOI：10.3969/j.issn.1001-893X. |
| 修订日期：2003-05-09 |
| 基金项目: |
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| A Type-II HARQ Scheme Using Interleaving Rearrangement and Constellation Rearrangement |
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| Abstract: |
| Hybrid automatic repeat request (HARQ) protocol is always used for reliable high rate wireless services for the purpose of improving throughput and decoding efficiency of communication systems. This paper presents a new type-II HARQ scheme using constellation rearrangement and interleaving rearrangement. The retransmission protocol is described and then throughput is analyzed. Simulations show that the proposed scheme achieves higher throughput, reduces the transmission delay and improves the reliability of the system. |
| Key words: OFDM,Data transmission,Hybrid ARQ,Throughput,QAM,Interleaving |
《电讯技术》编辑部 