Publications (4)0 Total impact
Article: Performance Analysis of MIMO Schemes in Residential Home Environment via Wideband MIMO Propagation Measurement.IEICE Transactions. 01/2010; 93-A:814-829.
Article: Performance Evaluation of Spatial Correlation Characteristics for Handset Antennas Using Spatial Fading Emulator Based on Clarke's Model.IEICE Transactions. 01/2010; 93-B:2514-2522.
Conference Proceeding: MIMO channel capacity measurement in the presence of spatial clusters using a fading emulator.Proceedings of the IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2009, 13-16 September 2009, Tokyo, Japan; 01/2009
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ABSTRACT: This paper presents an investigation of radio-wave propagation characteristics in the 5 GHz band in a residential two-story house. We investigated the 3-D angular spectra of incident waves when a transmitter and a receiver were situated on the first and second floors, respectively. First of all, correlation in the measured “home environment” containing furniture such as beds, a sofa and tables was determined to confirm a quasi-static environment. Then, 3-D angular spectra measurements were performed by using an eight-element Yagi-Uda antenna as a receiving antenna. Furthermore, the 4-by-4 MIMO channel capacity at each elevation angle was estimated by using elevation angular spectra and the propagation characteristics between the first and second floors were evaluated. The results indicated that the channel capacity in the elevation direction was strongly influenced by the direction of the transmitting antenna.