w Metal exchange Channel Characterization Close Proximity P2P (300 GHz): Concerning the usage model of close proximity P2P wireless communications, the channel is assumed to be line-of-sight propagation in millimeterwave, 300 GHz band. Generally, TSV model is introduced in millimeterwave PAN/LAN systems in IEEE802.15.3c and IEEE802.11ad operating both at 60 GHz. For proximity communications usage, reflections are observed inside terminals and at surface of terminals, etc. The channel model shall be modified to represent such propagation mechanisms and the frequency band at 300 GHz. The channel model shall apply at least one of the several kinds of propagation depending on the antenna configurations. Introductory Measurement Examples Peculiarities of wave propagation in KIOSK Under KIOSK use case, there are the following peculiarities. Link is pear to pear and LOS. Wave propagation distance is relatively (< 1 meter). Front cover (window) exists between Tx and Rx. Rx module uses relatively low-gain antenna because it is equipped with mobile phones. Case of Rx (case of mobile phone) is occasionally made by metal. Tx uses relatively high-gain antenna to avoid the propagation loss. Tx is set in an environment pretty well-controlled as surrounded by wave absorber. Fig. 4.1 KIOSK use case Fig. 4.2 Wave propagation in KIOSK Measurement Methodology and Results Measurement Methodology To clarify a channel model of KIOSK use case, some experiments using 2-port calibrated Vector Network Analyzer (VNA) in 220 340 GHz are conducted. In the experiments, commercially available 25-dBi-antennas are used as Tx and Rx antennas. The S-parameters (S21) are measured by changing Tx-Rx distance up to 1.8m using an automatic stage.
w Metal exchange Channel Characterization Close Proximity P2P (300 GHz): Concerning the usage model of close proximity P2P wireless communications, the channel is assumed to be line-of-sight propagation in millimeterwave, 300 GHz band. Generally, TSV model is introduced in millimeterwave PAN/LAN systems in IEEE802.15.3c and IEEE802.11ad operating both at 60 GHz. For proximity communications usage, reflections are observed inside terminals and at surface of terminals, etc. The channel model shall be modified to represent such propagation mechanisms and the frequency band at 300 GHz. The channel model shall apply at least one of the several kinds of propagation depending on the antenna configurations. Introductory Measurement Examples Peculiarities of wave propagation in KIOSK Under KIOSK use case, there are the following peculiarities. Link is pear to pear and LOS. Wave propagation distance is relatively (< 1 meter). Front cover (window) exists between Tx and Rx. Rx module uses relatively low-gain antenna because it is equipped with mobile phones. Case of Rx (case of mobile phone) is occasionally made by metal. Tx uses relatively high-gain antenna to avoid the propagation loss. Tx is set in an environment pretty well-controlled as surrounded by wave absorber. Fig. 4.1 KIOSK use case Fig. 4.2 Wave propagation in KIOSK Measurement Methodology and Results Measurement Methodology To clarify a channel model of KIOSK use case, some experiments using 2-port calibrated Vector Network Analyzer (VNA) in 220 340 GHz are conducted. In the experiments, commercially available 25-dBi-antennas are used as Tx and Rx antennas. The S-parameters (S21) are measured by changing Tx-Rx distance up to 1.8m using an automatic stage.
15-14-0310-15-003d-channel-modeling-document.docx