Analyses of Antenna Displacement in Short-Range MIMO Transmission over Millimeter-Wave

作者：Hiraga Ken^*; Seki Tomohiro; Nishimori Kentaro; Nishikawa Kenjiro; Toyoda Ichihiko; Uehara Kazuhiro

来源：IEICE - Transactions on Communications, 2011, E94B(10): 2891-2895.

DOI：10.1587/transcom.E94.B.2891

• short-range
• MIMO
• millimeter-wave
• antennas
• parallel transmission

Short-range multiple-input and multiple-output (SR-MIMO) has attracted much attention, because the technique makes it possible to raise channel capacity to several hundred Gbit/s by utilizing the millimeter-wave band (e.g., 60 GHz band). Although the opposed transceiving antennas are assumed to be accurately positioned in previous studies regarding SR-MIMO, a very important issue is to evaluate the performance degradation due to displacement between MIMO transceivers. In SR-MIMO over the millimeter-wave band, any displacement is perceived as significant because the wavelength is small. This paper evaluates the influence on SR-MIMO transmission performance over millimeter-wave caused by displacement between the transmitting and receiving antennas. The channel capacity is found to degrade by 5% when the horizontal displacement is 1 mm and by 2.7% when the rotational displacement is 10 degrees. In addition, comparing performances obtained with a number of antenna array arrangements clarifies that a square pattern arrangement is suitable for short-range wireless transmission.

• 出版日期2011-10