Hardware Platform and Implementation of a Real-Time Multi-User MIMO-OFDM Testbed

Authors

Markus Wenk, Peter Luethi, Thomas Koch, Patrick Maechler, Michael Lerjen, Norbert Felber, and Wolfgang Fichtner

Reference

ISCAS 2009. IEEE International Symposium on Circuits and Systems, 2009., pp. 789-792, May 2009.

DOI: 10.1109/ISCAS.2009.5117872

Abstract

This paper describes a modular hardware platform of a multi-user (MU) multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) testbed. The hardware platform is based on multiple field programmable gate arrays (FPGAs), provides four integrated radio-frequency (RF) chains, and has capabilities for future extensions. The performance and modularity of the testbed enables real-time MU-MIMO-OFDM experiments as well as offline processing experiments. To this end, the MIMO physical (PHY) layer of Haene et al., IEEE J-SAC, 2008, has been adapted to the new hardware platform and extended with bi-directional communication facilities and a basic media access control (MAC) layer equipped with Ethernet (ETH) connectivity.

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