Hiroyasu Obata

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As a variety of communication devices emerging, we can easily install two or more communication interfaces on a PC or a PDA and make a multi-home environment. To utilize this multi-home environment effectively, SCTP (Stream Control Transmission Protocol) has been proposed and standardized. Extending functions of the original SCTP, a strategy which can adapt(More)
—In wireless local area networks (WLAN) based on IEEE 802.11, when the number of wireless terminals connecting to the same access point (AP) increases, data frame collisions cause the decreasing of total throughput for all wireless terminals. To address this problem, we have proposed a new media access control (MAC) method, Synchronized Phase MAC (SP-MAC),(More)
—Public areas, such as train stations and airports, providing wireless Local Area Network (WLAN) services are increasing and expanding because of the rapid development of WLANs based on IEEE 802.11 standard. Moreover, because of the advances in smartphone tethering technology, portable access points (APs) such as mobile Wi-Fi routers are being utilized more(More)