Performance of space-frequency coded broadband OFDM under real-world propagation conditions


Helmut Bölcskei, Moritz Borgmann, and Arogyaswami J. Paulraj


European Signal Processing Conference (EUSIPCO), Sept. 2002, Toulouse, France, Vol. 2, pp. 413-416, Sept. 2002, (invited paper).

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In this paper, using a spatial broadband channel model taking into account transmit and receive antenna correlation, we study the influence of propagation conditions on the performance of space-frequency coded OFDM. For a given space-frequency code, we quantify the achievable diversity order and coding gain as a function of the transmit and receive correlation matrices. We find that the presence of transmit correlation results in widely varying performance losses. High-rate space-frequency codes such as spatial multiplexing are typically significantly more affected by transmit correlation than low-rate codes such as space-frequency block codes.


Space-frequency codes, propagation conditions, diversity gain, multiplexing gain

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Copyright Notice: © 2002 H. Bölcskei, M. Borgmann, and A. J. Paulraj.

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