Flexible demonstrator platform for cooperative joint transmission and detection in next generation wireless MIMO-OFDM networks

Authors:
Andreas Ibing;David Kühling;Marcel Kuszak;Clemens v. Helmolt;Volker Jungnickel
Affiliations:
Heinrich-Hertz-Institut, Berlin, Germany;Heinrich-Hertz-Institut, Berlin, Germany;Heinrich-Hertz-Institut, Berlin, Germany;Heinrich-Hertz-Institut, Berlin, Germany;Heinrich-Hertz-Institut, Berlin, Germany
Venue:
Proceedings of the 4th International Conference on Testbeds and research infrastructures for the development of networks & communities
Year:
2008

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Abstract

This paper presents a flexible demonstrator platform for cooperative joint transmission and detection in next generation wireless networks, especially cellular networks like 3GPP LTE+. The platform is shown capable of handling computational load as well as network load of jointly processing three maximum bandwidth LTE sectors with four antennas each. The platform uses a Workstation mainboard as PCI Express backplane. Joint signal processing is done on a Cell processor, protocol handling on an IXP2350 network processor. For baseband sample exchange a 10GBit/s optical network interface card is used. First results show the Cell processor capable of computing the 12x12 modified LTE MIMO-OFDM processing concurrently for precoding (downlink) and postprocessing (uplink) with a MIMO matrix update interval of 1ms (high mobility).