Research trend of millimeter-wave systems and technologies at Communication Research Laboratory

Summary form only given. A novel millimeter-wave wireless access system developed by CRL Yokosuka Radio Communication Research Center is presented. First we discuss the Japanese 60 GHz standardization. Several applications are reviewed and one indoor application which can transmit a number of video channels is presented in detail. Heterodyne transmission techniques, which can reduce the cost of 60 GHz hardware, are proposed for indoor and outdoor millimeter-wave systems. Experimental results of the heterodyne transmission techniques are presented in terms of phase noise. Short-range type ad-hoc systems are proposed. Our idea has been proposed to IEEE 802.15 TG3a as an alternative PHY layer. The proposal is described. Fixed wireless access (FWA) systems utilize the advantages of millimeter-wave frequencies. The next-generation FWA system developed by CRL is discussed and new-frequency bands for FWA systems are proposed. CRL is now making a FWA testbed in the Yokosuka city area using 32 GHz, 38 GHz and 60 GHz bands. The configuration of the testbed is further presented and applications of FWA are discussed.