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A comparison of full-rate full-diversity 2x2 space-time codes for WiMAX systems
Sezginer, Serdar; Sari, Hikmet; Biglieri, Ezio
Universitat Pompeu Fabra
Multiple-input multiple-output (MIMO) techniques have become an essential part of broadband wireless communications systems. For example, the recently developed IEEE 802.16e specifications for broadband wireless access include three MIMOprofiles employing 2×2 space-time codes (STCs), and two of these MIMO schemes are mandatory on the downlink of Mobile WiMAX systems. One of these has full rate, and the other has full diversity, but neither of them has both of the desired features. The third profile, namely, Matrix C, which is not mandatory, is both a full rate and a full diversity code, but it has a high decoder complexity. Recently, the attention was turned to the decodercomplexity issue and including this in the design criteria, several full-rate STCs were proposed as alternatives to Matrix C. In this paper, we review these different alternatives and compare them to Matrix C in terms of performances and the correspondingreceiver complexities.
Comunicació presentada en el 10th International Symposium on Spread Spectrum Techniques and Applications (ISSSTA '08), celebrat els dies 25, 26, 27, i 28 d’agost de 2008 a Bolonya (Itàlia), organitzat per l’Institute of Electrical and Electronics Engineers (IEEE).
The authors S. Sezginer and H. Sari would like to acknowledge the support of the European Commissionthrough the FP7 project WiMAGIC (see
Comunicació sense fil, Sistemes de
Sistemes MIMO
IEEE 802.16 (Protocol)
Multiple-input multiple-output (MIMO)
Space-time codes (STCs)
WiMAX systems
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Institute of Electrical and Electronics Engineers (IEEE)

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