Reduced Complexity Detection for V-BLAST Systems: from Theory to Practice

摘要：

V-BLAST (Vertical Bell Lab Layered Space-Time) wireless systems are multiple-input multiple-output (MIMO) schemes which can achieve very high spectral efficiency in scattering environments. However the implementation of V-BLAST system posts a major challenge to hardware designers due to high algorithmic complexity and huge processing power required for V-BLAST detection. In this paper, we propose a reduced complexity VLSI architecture for V-BLAST detection based on the improved square root algorithm. In particular, we analyze the finite word length effect specific to the architecture and derive the optimal word lengths and the number of rotation stages considering tradeoff between the performance and the hardware complexity.

作者: He Guanghui Yu Wei Zhou Zucheng

作者单位: Department of Electronic Engineering Tsinghua University Beijing, China

会议类型: 国际会议

会议名称: 2006 International Conference on Communications,Circuits and Systems(第四届国际通信、电路与系统学术会议)

会议地点: 广西桂林

会议语种:英文

页码: 2549-2553

在线出版日期: 2006-06-25（万方平台首次上网日期，不代表论文的发表时间）