A two-step modeling approach for the influence of radio-system impairments in multicarrier MIMO systems
Conference: PIMRC 2005 - 16th Annual IEEE International Symposium on Personal Indoor and Mobile Radio Communications
09/11/2005 - 09/14/2005 at Berlin, Germany
Proceedings: PIMRC 2005
Pages: 5Language: englishTyp: PDF
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Authors:
Schenk, Tim C. W.; Smulders, Peter F. M.; Fledderus, Erik R. (Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands)
Tao, Xiao-Jiao (Sony Ericsson Mobile Communications AB, Torshamnsgatan 27, 16494 Kista, Sweden)
Abstract:
In this contribution we introduce a modeling approach for the influence of radio-impairments in (multi-antenna) wireless communication systems. This method, differently from previous approaches, regards two phases: a stage where the impairments are severe and one where the influence is less critical, which enables the inclusion of the impact of power-save-modes and transmitter/receiver mode switching. The error model includes an additive and a rotational part, both implemented in the transmitter as well as in the receiver. As an example, it is shown how phase noise maps onto the introduced error model. As a test case, a multiple-input multiple-output orthogonal frequency division multiplexing (MIMO OFDM) system based on coherent detection is regarded. The system applies zero-forcing as detection method. Analytical expression are derived for the probability of error of such a system impaired by the introduced error model. Finally, numerical results from simulations are shown, which confirm the results from the analytical study.