An Efficient MIMO Detector Algorithm for Next Generation Wireless Communication
Design a high throughput MIMO-OFDM transceiver and the linear MMSE MIMO detector on a resource limited hardware platform for mobile device is very challenging. In this paper, we study the linear MMSE detector problem and propose a realistic algorithm implementation for a linear MMSE MIMO detector on real hardware. We observed the scaling invariant property of QR decomposition and proposed a dynamic scaling algorithm for QR decomposition. Our algorithm maintains the data in the same range during the factorization process. Our algorithm is very amicable for a fixed point implementation on a hardware platform without floating point units (i.e. low-end FPGA). We have successfully implemented and synthesized the algorithm on Xilinx Vertex-4 FPGAs and shows good numerical stability. Our desgin is very general and applicable to other future MMSEbased MIMO detector algorithm (i.e. 8X8 MIMO).
MIMO RF-Communication system FPGA Channel Estimation
Limei Xie
School of Management Changchun Institute of Technology Changchun, China, 130062
国际会议
哈尔滨
英文
1195-1199
2011-12-24（万方平台首次上网日期，不代表论文的发表时间）