Rapid MIMO-OFDM software defined radio system prototyping

Combining MIMO with OFDM, it is possible to significantly reduce receiver complexity as OFDM greatly simplifies equalization at the receiver. MIMO-OFDM is currently being considered for a number of developing wireless standards; consequently, the study of MIMO-OFDM in realistic environments is of great importance. This paper describes an approach for prototyping a MIMO-OFDM systems using a flexible software defined radio (SDR) system architecture in conjunction with commercially available hardware. An emphasis on software permits a focus on algorithm and system design issues rather than implementation and hardware configuration. The penalty of this flexibility, however, is that the ease of use comes at the expense of overall throughput. To illustrate the benefits of the proposed architecture, applications to MIMO-OFDM system prototyping and preliminary MIMO channel measurements are presented. A detailed description of the hardware is provided along with downloadable software to reproduce the system.

[1]  Markus Rupp,et al.  Prototype experience for MIMO BLAST over third-generation wireless system , 2003, IEEE J. Sel. Areas Commun..

[2]  Patrick Murphy,et al.  A Hardware Testbed for the Implementation and Evaluation of MIMO Algorithms , 2003, MWCN.

[3]  Michael A. Jensen,et al.  Experimental characterization of the MIMO wireless channel: data acquisition and analysis , 2003, IEEE Trans. Wirel. Commun..

[4]  Deuk-Su Lyu,et al.  Physical layer implementation and evaluation of multiple input multiple output - orthogonal frequency division multiplexing (MIMO-OFDM) system , 2003, International Conference on Communication Technology Proceedings, 2003. ICCT 2003..

[5]  Theodore S. Rappaport,et al.  Measurements and models for radio path loss and penetration loss in and around homes and trees at 5.85 GHz , 1998, IEEE Trans. Commun..

[6]  Yusuke Asai,et al.  Development of a novel SDM-COFDM prototype for broadband wireless access systems , 2003, 2003 IEEE Wireless Communications and Networking, 2003. WCNC 2003..

[7]  Tim C. W. Schenk,et al.  Implementation of a MIMO OFDM-based wireless LAN system , 2004, IEEE Transactions on Signal Processing.

[8]  Rohit U. Nabar,et al.  Introduction to Space-Time Wireless Communications , 2003 .

[9]  R.W. Heath,et al.  A joint MIMO-OFDM transceiver and MAC design for mobile ad hoc networking , 2004, International Workshop on Wireless Ad-Hoc Networks, 2004..

[10]  R.W. Heath,et al.  Impact of antenna geometry on MIMO communication in indoor clustered channels , 2004, IEEE Antennas and Propagation Society Symposium, 2004..

[11]  M.A. Jensen,et al.  Termination-dependent diversity performance of coupled antennas: network theory analysis , 2004, IEEE Transactions on Antennas and Propagation.

[12]  V. Erceg,et al.  TGn Channel Models , 2004 .

[13]  Geoffrey Ye Li,et al.  Broadband MIMO-OFDM wireless communications , 2004, Proceedings of the IEEE.

[14]  J. Tellado,et al.  A fourth-generation MIMO-OFDM broadband wireless system: design, performance, and field trial results , 2002, IEEE Commun. Mag..