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Application Layer Gateway

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Jeng-ji Huang – One of the best experts on this subject based on the ideXlab platform.

  • A SIP-Based Mobility Management Architecture Supporting TCP with Handoff Optimization
    2007 IEEE 65th Vehicular Technology Conference – VTC2007-Spring, 2007
    Co-Authors: Huei-wen Ferng, Nigel Hsiung, David Shiung, Jeng-ji Huang

    Abstract:

    Keeping a session connected as a mobile host traverses across networks is the responsibility of a handoff management protocol. An effective protocol should support various transport protocols, require minimum changes, and manage handoff with acceptable delay and signaling cost. In this paper, a handoff management architecture that utilizes Application Layer Gateway (ALG) and network address translation (NAT) mechanisms based on the session initiation protocol (SIP) is proposed. In addition to supporting mobility for the TCP session, the proposed architecture also optimizes real-time handoff delay by reducing delays caused by Layer independency and duplication address detection (DAD) procedure and head of train delay caused by sequential execution of handoff procedures at different Layers with few changes to the existing protocols and infrastructure.

Fan Hunli – One of the best experts on this subject based on the ideXlab platform.

  • Design and Implementation of Wireless Sensor Cellular Network Based on Android Platform
    International Association of Online Engineering (IAOE), 2019
    Co-Authors: Luan Zhijun, Fan Hunli

    Abstract:

    the fusion of cellular network and wireless sensor network is the key research problem of Internet of Things (IoT) technology at present. The design and implementation of wireless sensor cellular network based on Android platform is mainly studied. Firstly, wireless sensor network and cellular network, Android platform, cellular network and Wireless Sensor Network (WSN) fusion strategy, and Wireless Sensor Network (WSN) Gateway platform are introduced. Then related functions are introduced, mainly including terminal registration management, connection management, authentication management, terminal fault management, and communication message design on the Gateway and sensor network side. Finally, related functional tests are conducted. The results show that the designed Application Layer Gateway system can connect the sensor network with the cellular network. Time Division-Synchronization Code Division Multiple Access (TD-SCDMA) and cellular network covers the whole world, while cellular network has been interconnected with the Internet through Access Network Technologies such as General Packet Radio Service (GPRS), The Fourth Generation of Mobile Phone Mobile Communication Technology Standards (4G) and Long Term Evolution (LTE), thus enabling the sensor network to access the Internet anytime and anywher

Chen Yan – One of the best experts on this subject based on the ideXlab platform.

  • Design and Implementation of Wireless Sensor Cellular Network Based on Android Platform
    International Association of Online Engineering (IAOE), 2017
    Co-Authors: Chen Yan

    Abstract:

    With the progress of the times, the network has grown into the people’s work and life. The limitations of the traditional wireless sensor network (WSN) have become increasingly prominent, and it is obviously unable to meet the requirements of Internet access. Therefore, the 4G mobile Android system is used as a carrier, to design an Application Layer Gateway system for realizing wireless communication between wireless sensor networks and heterogeneous cellular networks, so as to build wireless sensor cellular network. The design and implementation of the AP module, data receiving and forwarding module, network packet loss management and retransmission of the Gateway systemis the focus, and then the implemented Gateway system is tested. The test results show that the design of the Android platform wireless sensor network Gateway system can connect the sensor network to the cellular network, so as to realize data communication, and to ensure that the data loss rate is less than 0.1%. Through testing, it is concluded that the system can meet the actual deman