Riichiro Nagareda

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There are wireless access networks where many access points (APs) are placed by each user and shared by many user terminals (UTs). In these networks, the coverages of some APs overlap with each other because users place APs without a plan. In this situation, power consumption of overlapped APs would be wasteful when the total number of active UTs is(More)
It is necessary to select an appropriate access network out of the several available as well as perform vertical handover, which can be considered to be one of the key features of IMT-Advanced. We now have a dual-mode mobile terminal (MT) which can connect to both wireless LAN (WLAN) and cellular NWs, featuring a high transmission rate and wide coverage(More)
In this paper, an evaluation of the influence of rain and its attenuation on link performance in a Tokyo Institute of Technology (Tokyo Tech) millimeter-wave model mesh network are presented. The unique effects arising due to the highly localized behaviors of strong rainfalls have become clear and are characterized in terms of variogram rather than(More)
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