Design and Implementation of a DSP-Based MIMO System Prototype for Real-Time Demonstration and Indoor Channel Measurements

Raqibul Mostafa, Ran Gozali, Ramesh Chembil Palat, Max Robert, William G. Newhall, Brian D. Woerner, Jeffrey H. Reed
2005 EURASIP Journal on Advances in Signal Processing  
The design and implementation of the Virginia Tech Space-Time Advanced Radio (VT-STAR), a multiple antenna element spacetime (ST) processing prototype testbed, is presented. The testbed is a research tool for comparing practical and theoretical performance metrics (e.g., throughput, link reliability) in different wireless channel conditions. The prototype builds around softwaredefined radio (SDR) concepts on a DSP platform and provides the flexibility to implement various forms of ST
more » ... ms of ST techniques. Different components of the system are described in detail, including the software implementation, I/O schemes with custom hardware, and data transfer mechanisms between the DSP and the host PC. Two different example realizations are presented, a real-time demonstration and an offline measurement tool. Finally, some representative measurement results obtained in indoor environments are presented. These results show VT-STAR to be a promising tool for performing MIMO experiments and generating channel measurements that can complement simulation studies in this area.
doi:10.1155/asp.2005.2673 fatcat:wtw6gp3bw5hwlhklwlz4uvx3ci