Yutaka FUKUDA

Publications (8)0 Total impact

• Article: Energy Saving Scheme with an Extra Active Period for LAN Switches.

  Hitomi Tamura, Ritsuko Tomihara, Yutaka Fukuda, Kenji Kawahara, Yuji Oie
  IEICE Transactions. 01/2010; 93-B:3542-3554.
• Conference Proceeding: Congestion Propagation in Multihop Wireless Networks.

  Yoichi Yamasaki, Hiroyuki Koga, Yutaka Fukuda, Masayoshi Shimamura, Yuji Oie
  Ninth Annual International Symposium on Applications and the Internet, SAINT 2009, Bellevue, Washington, USA, July 20-24, 2009, Proceedings; 01/2009
• Conference Proceeding: Performance Analysis of Energy Saving Scheme with Extra Active Period for LAN Switches.

  Hitomi Tamura, Yutaka Yahiro, Yutaka Fukuda, Kenji Kawahara, Yuji Oie
  Proceedings of the Global Communications Conference, 2007. GLOBECOM '07, Washington, DC, USA, 26-30 November 2007; 01/2007
• Article: New TCP Congestion Control Schemes for Multimodal Mobile Hosts.

  Kazuya Tsukamoto, Yutaka Fukuda, Yoshiaki Hori, Yuji Oie
  IEICE Transactions. 01/2006; 89-B:1825-1836.
• Conference Proceeding: Development of Access Point Selection Architecture with Avoiding Interference For WLANs.

  Yutaka Fukuda, Masanori Honjo, Yuji Oie
  Proceedings of the IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2006, 11-14 September 2006, Helsiniki, Finland; 01/2006
• Article: Performance evaluation of TCP under dynamic allocation scheme for down-link transmission rate in W-CDMA systems.

  Yutaka Fukuda, Hiroyuki Koga, Takeshi Ikenaga, Yuji Oie
  Wireless Communications and Mobile Computing. 01/2004; 4:223-232.
• Article: Decentralized Access Point Selection Architecture for Wireless LANs

  Yutaka FUKUDA, Yuji OIE
  [show abstract] [hide abstract]
  ABSTRACT: Multiple access points (APs) are much more likely to be available for stations (STAs) due to the popularity of wireless LANs. The serious issue of how an appropriate AP is selected from those that are available in a wireless LAN therefore arises. We discuss the development of a decentralized architecture for selecting APs, and examine its fundamental characteristics. The proposed architecture should be introduced without adversely affecting the performance of the existing common architecture that is currently being deployed. Therefore, the deployability of our architecture is examined in this respect. Furthermore, the dynamic behavior of the proposed architecture is studied in addition to static characteristics to evaluate its robustness against various dynamic changes in situation due to AP breakdowns and bursty arrivals of STAs. Simulations revealed that the proposed architecture can attain excellent performance in all the cases treated here.
• Article: Unfair and Inefficient Share of Wireless LAN Resource among Uplink and Downlink Data Traffic and Its Solution

  Yutaka FUKUDA, Yuji OIE
  [show abstract] [hide abstract]
  ABSTRACT: Wireless LANs (Local Area Networks) are currently spreading over diverse places such as hotels and airports, as well as offices and homes. Consequently, they provide convenient and important ways to access the Internet. Another type of communication model, Peer-to-Peer (P2P) communication on the Internet, has also attracted much attention, and P2P over wireless LANs will soon be very common. There are concerns about the capability of wireless stations (STAs) to send a large amount of traffic on an uplink. In this paper, we first clarify some issues that arise in this context by examining the feature of the Access Point(AP). Furthermore, we consider the role of the AP and propose, as a solution, ways of enabling both efficient and fair transmission over both the downlink and uplink. We evaluate the proposed schemes through simulations and show that communications over the uplink and downlink can share the wireless LAN access resource effectively. Furthermore, we show that coordinating our solution with the 802.11e Enhanced Distributed Channel Access (EDCA) can meet the different requirements of various types of traffic.