Search Results 1-20 of 1700

  • Communication restoration using mobile ICT unit cooperation with legacy radio systems  [in Japanese]

    釘本 健司 , 鈴木 康夫 , 小田部 悟士 , 東條 弘

    電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 118(26), 17-22, 2018-05-14

  • Managing the Transition from PSTN to IP Networks  [in Japanese]

    FUKE Hidenori

    … <p>本研究は、利用者にも競争事業者にも大きな影響を及ぼす可能性のある、NTT東西の電話網(PSTN)からIP網への移行計画に関わる課題を評価することを目的とする。 …

    Journal of Information and Communication Research 36(1), 61-74, 2018

    J-STAGE

  • Fast-Start Video Delivery in Future Internet Architectures with Intra-domain Caching

    LIU Zhi , DONG Mianxiong , GU Bo , ZHANG Cheng , JI Yusheng , TANAKA Yoshiaki

    … Current TCP/IP based network is suffering from the tremendous usage of IP. … In CCN, data itself, which is authenticated and secured, is a name and can be directly requested at the network level instead of using IP and DNS. …

    Mobile Networks and Applications 22(1), 98-112, 2017-02

    IR

  • NAPT-Based Mobility Service for Software Defined Networks

    SUN Shimin , HAN Li , JIN Xianshu , HAN Sunyoung

    … <p>For IP-based mobile networks, efficient mobility management is vital to provision seamless online service. … IP address starvation and scalability issue constrain the wide deployment of existing mobility schemes, such as Mobile IP, Proxy Mobile IP, and their derivations. …

    IEICE Transactions on Information and Systems E100.D(5), 932-938, 2017

    J-STAGE

  • Dynamic Ant Colony Optimization for Routing in Mobile Content Oriented Networks

    MANOME Shintaro , ASAKA Takuya

    … <p>A huge amount of content exists on the Internet, and contents from mobile devices are also present. … Content oriented networks have been proposed as a new network architecture that conducts routing using the content's ID instead of an IP address. … When the content from a mobile device moves somewhere else, all the routing tables are generally re-created with the movement information that the mobile device sends. …

    IEICE Transactions on Communications E100.B(2), 304-312, 2017

    J-STAGE

  • Host-Based and Network-Based Distributed Mobility Management for NEMO

    SORNLERTLAMVANICH Parin , KAMOLPHIWONG Sinchai

    … <p>The Mobile IPv6 protocol (MIPv6) allows a single Mobile Node (MN) to keep the same IPv6 address independently of its network of attachment. … Proxy Mobile IPv6 (PMIPv6) has been developed for local mobility management whereas MIPv6 and NEMO address global mobility for both hosts and routers. …

    IEICE Transactions on Communications E100.B(1), 67-74, 2017

    J-STAGE

  • A proposal of a mobile communication method which is improved efficiency with integrated control between radio-layer and internet-layer  [in Japanese]

    城島 貴弘 , 大須賀 徹 , 高橋 英士 , 野上 耕介 , 信清 貴宏 , 井上 高道 , 大西 健夫

    電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 116(46), 55-60, 2016-05-19

  • A proposal of a mobile communication method which is improved efficiency with integrated control between radio-layer and internet-layer  [in Japanese]

    城島 貴弘 , 大須賀 徹 , 高橋 英士 , 野上 耕介 , 信清 貴宏 , 井上 高道 , 大西 健夫

    電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 116(45), 61-66, 2016-05-19

  • Actual Impact Analysis of Multicast Packets for Control in IPv6 Wireless LANs  [in Japanese]

    前田 香織 , 新谷 隆文 , 近堂 徹 , 相原 玲二

    … In this paper, we show the results of actual monitoring of IP multicast/broadcast packets in IPv6 wireless LANs connected by more than 1,500 terminals per day. … Also, we propose an evaluation method to estimate impact of mobile terminals such as embedded computers and smartphones that are mainly used in wireless LANs by signaling multicast traffic on CPU load and the numbers of interruption. …

    情報処理学会論文誌 57(3), 989-997, 2016-03-15

    IPSJ

  • Performance Evaluation of Virtualized LTE-EPC Data Plane with MPLS Core Using PPBP Machine-to-Machine Traffic

    HUSSIEN Hussien M. , ELSAYED Hussein A.

    … It was also introduced in the IP Multimedia Subsystem (IMS) and Machine to Machine applications (M2M) for the same reason. … This paper provides a simulation model of a virtualized EPC and virtualized M2M transport application server connected via an external IP network, which has significant importance in the future of mobile networks. …

    IEICE Transactions on Communications E99.B(2), 326-336, 2016

    J-STAGE

  • Pre-Association Messaging Framework for Mobile Proximity Service Based on Wi-Fi P2P

    LEE Jae-Ho , LEE Hyung-Seok , LEE Cheol-Hoon

    … Wi-Fi P2P has been deployed extensively in mobile devices. … However, Wi-Fi P2P is not efficient because it requires an IP layer connection for transmitting even short messages to nearby devices, especially in high density or highly mobile environments owing to the fact that a user on the move has difficulty selecting service-available devices, and a user device has to frequently connect to and be released from nearby devices. …

    IEICE Transactions on Communications E99.B(2), 392-401, 2016

    J-STAGE

  • Determination of Nitrate Ion Concentration in Fresh Vegetable Juices Using Ion-Pair Ultra Performance Liquid Chromatography (IP-UPLC)

    ITO Hidekazu

    … Therefore, the nitrate ion concentrations in fresh vegetable juices were measured using ion-pair ultra performance liquid chromatography (IP-UPLC). … The separation was performed on a C18 column with a mobile phase containing 0.15 mM tetrabutylammonium chloride as an ion-pair reagent, 0.1% (w/v) ammonium acetate, and 5% (v/v) methanol at pH 6.2. …

    Japan Agricultural Research Quarterly: JARQ 50(1), 45-48, 2016

    J-STAGE

  • Distributed Heterogeneous Mobile IP (Internet Architecture)

    Kamolphiwong Sinchai , Sornlertlamvanich Parin , Elz Robert [他]

    電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 115(307), 113-119, 2015-11-12

  • B-7-6 A study on a capability difference between fixed terminal and mobile terminal regarding forking  [in Japanese]

    Kanegae Shunsuke , Jocha Tsuyoshi

    Proceedings of the Society Conference of IEICE 2015年_通信(2), 77, 2015-08-25

  • Rule caching in SDN-enabled mobile access networks

    DONG Mianxiong , LI He , OTA Kaoru , XIAO Jiang

    … A software defined network (SDN) enabled mobile access network is a future network with great potential to support scalable and flexible network applications. … To support various network applications, the SDN-enabled mobile access network usually uses forwarding rules in SDN devices. … In this paper, we propose SRCMN, which is a new caching structure to improve the network performance with a limited rule space in the SDN-enabled mobile access network. …

    IEEE Network 29(4), 40-45, 2015-07-24

    IR

  • A study on measurement of quality of VoIP applications  [in Japanese]

    遠藤 直人 , 野尻 秀樹 , 高橋 玲

    電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 115(11), 87-91, 2015-04-21

  • Field evaluation of base station synchronization method using GPS to realize eICIC for LTE-Advanced  [in Japanese]

    Shiobara Shota , Nagai Yasuhiro , Okamawari Takao , Fujii Teruya

    … nation)をベースとした階層化セル制御アーキテクチャを提案している.階層化セル制御アーキテクチャを実現するためには,各基地局が高精度(1μs以下)に時刻同期することが必須である.そこで,各基地局が非同期のIPネットワーク(X2インターフェース)で接続された基地局構成において,GPSを用いて基地局間を時刻同期させる制御アーキテクチャを提案した.そして,提案するアーキテクチャをLTE-Advanced対応のeICICに実装し,所定の …

    Technical report of IEICE. RCS 114(490), 89-94, 2015-03-04

  • Evaluation of A Delay Spike Reduction Method on Real Mobile Networks  [in Japanese]

    NIHEI Koichi , SATODA Kozo

    … モバイルネットワークの高速化や携帯端末の機能・性能の向上によってVoice over IP (VoIP),ビデオ会議等のリアルタイムコミュニケーションがモバイルネットワークを介して利用されるようになってきている.モバイルネットワークでは,パケットの遅延が突発的に増加する現象(スパイク遅延)によるVoIPの通話品質の劣化が課題となっている.この課題に対して,筆者らは端末の無線品質に応じて音声パケットのサイズと送信間 …

    Technical report of IEICE. CQ 114(488), 19-24, 2015-03-03

  • Analysis on Prior Waiting-Time Expectation to Diverse Communication Links and Its Estimation Model  [in Japanese]

    KONAGAYA Shinya , MIYOSHI Takumi , YAMORI Kyoko

    … 近年,インターネットを中心としたIPネットワークが普及するなかで,映像・音声サービスの利用を前提とした新たな品質尺度として,ユーザが主観的に知覚・認知するユーザ体感品質(QoE:Quality of experience)が注目されている.従来の研究により,通信帯域,パケット損失,及び遅延時間といったネットワーク品質が等しい状況下でも,ユーザのおかれる状況や環境によりQoEは異なるとされてきた.一方,Wi-FiやLTEなどのネットワーク環 …

    IEICE technical report 114(477), 103-106, 2015-03-02

  • Development of Software Defined and Cognitive Wireless Network Based Never Die Network System  [in Japanese]

    佐藤 剛至 , 内田 法彦 , 柴田 義孝

    … 東日本大震災に伴う大津波被害により,多くの既存ネットワークシステムは様々な要因で機能を停止した.そのような状況の中で,衛星 IP 通信システムや携帯電話網,無線 LAN が被災地に投入され,ネットワークの仮復旧に効果を発揮した.我々は来るべき南海トラフ大地震に備えるため,これらの経験を踏まえた新たなネットワークシステムである Never Die Network(NDN)System を開発する.本稿では,複数の異なるアクセス …

    研究報告コンピュータセキュリティ(CSEC) 2015-CSEC-68(29), 1-7, 2015-02-26

    IPSJ

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