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MIMO-OFDM performance in relation to wideband channel properties

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Author: Li, P. · Zhang, H. · Oostveen, J. · Fledderus, E.
Publisher: IEEE
Place: Piscataway, NY
Institution: TNO Informatie- en Communicatietechnologie
Source:2010 IEEE 21st International Symposium on Personal Indoor and Mobile Radio Communications, PIMRC 2010, 26 - 30 September 2010, Istanbul, Turkey, 2381-2386
Identifier: 426835
doi: doi:10.1109/PIMRC.2010.5671717
Keywords: Informatics · Angular spread · Delay spread · MIMO · OFDM · Wideband channel · Future Internet Use · Information Society · Communication & Information ; Information Society · NT - Network Technology ; FIU - Future Internet Use · TS - Technical Sciences ; Themas


In this paper, the sensitivity of the error rate performance of MIMO-OFDM-based practical systems (WiMAX and LTE) to wide band channel properties is investigated. The behavior of the wideband channel is characterized in terms of delay spread (DS) and angular spread (AS). The impacts of DS and AS on the system performance are addressed with both qualitative and quantitative analyses. Two channel models are used for the quantitative analysis. The simulation results exemplify that a larger DS can result in lower error rate of OFDM systems, while a larger AS results in a lower error rate of MIMO systems. It is also observed that the DS sensitivity is higher in the region of low DS, which implies a more stringent accuracy requirement of DS prediction for radio planning. ©2010 IEEE.