Computer Engineering and Applications ›› 2006, Vol. 42 ›› Issue (24): 4-.

• 博士论坛 • Previous Articles     Next Articles

A cross-layer design in V-BLAST system

,Gan Liu,Xiaofeng Lu   

  1. 武汉大学计算机学院
  • Received:2006-06-12 Revised:1900-01-01 Online:2006-08-21 Published:2006-08-21




  1. 武汉大学计算机学院
  • 通讯作者: 郑鹏 zhengpeng zhengpeng

Abstract: 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.

Key words: Adaptive modulation (AM), Truncated automatic repeat request(T-ARQ), Vertical Bell-Labs layered space-time system (V-BLAST), Packet Error Rate (PER)

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。

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