Search Results - "Obata, Hiroyasu"

AP Cooperative Mobility Control for Public Mesh Network by Shibuya, Yudai, Hasegawa, Yohei, Obata, Hiroyasu, Murase, Tutomu

“…In a public mesh network, we propose a control method to move mesh access points (APs) to optimal locations in response to traffic condition changes and…”
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Modeling of Transmission Rate Based on Experimental Evaluation on Multi-Rate Wireless LAN for Safe and Secure Life by Obata, Hiroyasu, Takano, Chisa, Ishida, Kenji

“…The wireless LAN (WLAN) system based on IEEE802.11 uses multiple transmission rates to obtain improved communication quality according to the communication…”
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A Control Method of Guaranteeing Throughput for TCP Communication Considering Handover over WLAN by Obata, Hiroyasu, Momota, Ayaka, Funasaka, Junichi, Ishida, Kenji

“…In wireless LAN environments, the frequency of handover has been increased by the rapid spread of mobile devices such as smartphones and tablets. In such…”
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Experimental Evaluation of TCP-STAR for Satellite Internet over WINDS by Obata, H, Tamehiro, K, Ishida, K

“…Satellite link speeds are now increasing in unison with those of terrestrial links. For example, the maximum link speed of WINDS (Wideband Internetworking…”
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A Transmission Rate Variation Model Considering Transmission Power Based on Advection-Diffusion Equation for Multi-Rate Wireless LANs by Sawamura, Shunsuke, Obata, Hiroyasu, Takano, Chisa, Ishida, Kenji

“…In this paper, we propose a model that describes the multiple transmission rates utilization included in a wireless LAN environment considering the ground…”
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User Cooperative Mobility to Improve TCP-BBR Throughput in Ad-Hoc Networks by Ito, Naoyuki, Xie, Jiquan, Obata, Hiroyasu, Murase, Tutomu

“…In this paper, we propose a user cooperative mobility to improve Transmission Control Protocol-Bottleneck Bandwidth and Round-trip propagation time (TCP-BBR)…”
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Throughput Characteristics Evaluation of Media Access Control SP-MAC in Multi-hop WLAN Environment Considering Capture Effect by Nakamura, Kazuki, Obata, Hiroyasu, Takano, Chisa, Ishida, Kenji

“…A media access control method based on the synchronized phenomena of coupled oscillators (SP-MAC) has been proposed to avoid data frame collisions. SP-MAC can…”
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Number of TCP Connections to Saturate Bandwidth of Wireless Networks by Funasaka, Junichi, Obata, Hiroyasu, Ishida, Kenji

“…Wireless LANs have been used all over the world as an access line with high throughput. In addition, Internet users can connect to servers through multiple TCP…”
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An access point selection mechanism based on cooperation of access points and users movement by Hamamoto, Ryo, Takano, Chisa, Obata, Hiroyasu, Ishida, Kenji, Murase, Tutomu

“…Public areas, such as train stations and airports, providing wireless Local Area Network (WLAN) services are increasing and expanding because of the rapid…”
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Improvement of Throughput Prediction Method for Access Point in Multi-rate WLANs Considering Media Access Control and Frame Collision by Hamamoto, Ryo, Takano, Chisa, Obata, Hiroyasu, Ishida, Kenji

“…Wireless Local Area Networks (WLANs) based on the IEEE 802.11 standard have been spreading rapidly. Access Points (AP) are being established in various public…”
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Redundancy Setting Method for TCP Congestion Control Based on FEC over Wireless LAN by Teshima, Fumiya, Obata, Hiroyasu, Hamamoto, Ryo, Ishida, Kenji

“…With the rapid increase of mobile device users, the number of streaming services used over wireless LANs has increased. UDP is often used as a transport layer…”
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A Study on Detection Method of Selfish Terminal Using Manipulated MAC Parameters over WLAN by Obata, Hiroyasu, Takano, Chisa, Ishida, Kenji

“…In the wireless LAN based on IEEE802.11, each wireless terminal can obtain fair communication opportunity using CSMA/CA (Carrier Sense Multiple Access with…”
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Throughput Characteristics Evaluation of Media Access Control Method Based on Synchronization Phenomena of Coupled Oscillators over WLAN Coexisting of CSMA/CA Terminals by Obata, Hiroyasu, Hamamoto, Ryo, Takano, Chisa, Ishida, Kenji

“…Wireless local area networks, based on the distributed coordination function of the IEEE802.11 standard, usually use carrier sense multiple access with…”
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UDP Throughput Evaluation Considering the Communication Distance between AP and Wireless Terminals over Multi-rate WLAN Environment by Izui, Kohei, Obata, Hiroyasu, Takano, Chisa, Ishida, Kenji

“…In a multi-rate wireless local area network environment, rate adaptation control is used to achieve effective communication and improve quality of service…”
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Performance Evaluation of Flow QoS Guarantee Method Based on TCP Congestion Control and MAC Frame Priority Control over Multi-rate WLAN Environment by Tsushima, Hikaru, Hamamoto, Ryo, Obata, Hiroyasu, Ishida, Kenji

“…In order to guarantee the bandwidth of a flow (flow QoS) in Wireless LANs (WLANs), a flow QoS guarantee method using both TCP Congestion Control for QoS…”
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Control method to guarantee throughput based on media access control method SP-MAC over WLAN by Yamamoto, Yuuki, Hamamoto, Ryo, Obata, Hiroyasu, Takano, Chisa, Ishida, Kenji

“…Wireless local area networks (WLAN) based on IEEE 802.11 usually employ carrier sense multiple access with collision avoidance (CSMA/CA) for media access…”
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Performance Evaluation of Control Method to Guarantee Throughput Based on Media Access Control SP-MAC over WLAN by Yamamoto, Yuuki, Hamamoto, Ryo, Obata, Hiroyasu, Takano, Chisa, Ishida, Kenji

“…Wireless local area networks (WLANs) based on IEEE802.11 usually uses CSMA/CA for a media access control. In the CSMA/CA, it is known that data frame…”
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An Adaptive Control Parameter Setting Method for Priority Control Based on Media Access Control SP-MAC over WLAN by Ando, Ryoma, Hamamoto, Ryo, Obata, Hiroyasu, Takano, Chisa, Ishida, Kenji

“…In order to improve the total throughput of terminals by avoiding data frame collisions over wireless LAN, SP-MAC based on the synchronization phenomena of…”
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Characteristics Analysis of an AP Selection Method Based on Coordination Moving Both Users and APs by Hamamoto, Ryo, Takano, Chisa, Obata, Hiroyasu, Ishida, Kenji, Murase, Tutomu

“…Recently, connecting to the Internet by using the wireless LAN has become familiar. In addition, the rapid growth of wireless LAN provides a lot of the…”
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Switching Method of Media Access Control for Improving Fairness of Throughput between WLAN systems under Adjacent Channel Interference by Obata, Hiroyasu, Takano, Chisa

“…Many wireless LAN (WLAN) systems are densely used in conference rooms and cafes owing to the widespread use of mobile access points (APs) and smart phones with…”
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