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一种基于V-BLAST系统的跨层设计

A Cross-layer Design in V-BLAST System
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摘要 提出了一种基于V-BLAST系统的跨层设计方案,综合考虑物理层的自适应调制和链路层的截短ARQ技术,推导了平坦衰落信道下的频谱效率和中断率。数据仿真结果表明,这种联合设计可以降低V-BLAST系统的中断率,并且获得可观的频谱效率增益。 The combination of adaptive modulation (AM) at physical layer and truncated automatic repeat request at data link layer in V-BLAST system is considered in this paper.We deduce the spectral efficiency and the outage probability from our proposed design over frequency-flat Rayleigh channels.Numerical results reveal that the joint design of AM and truncated ARQ in V-BLAST system can achieve considerable spectral efficiency gain and outage probability reduction.
出处 《计算机工程与应用》 CSCD 北大核心 2006年第24期4-6,12,共4页 Computer Engineering and Applications
基金 国家自然科学基金资助项目(编号:60502023) 湖北省自然科学基金资助项目(编号:2006ABA077)
关键词 自适应调制 截短ARQ 垂直型贝尔实验室分层空时结构 误包率 Adaptive Modulation(AM),Truncated Automatic Repeat Request(T-ARQ),Vertical Bell-Labs Layered Spacetime System(V-BLAST),Packet Error Rate(PER)
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参考文献8

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