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As the number of Internet users increases, network devices are required to achieve power savings. For this purpose, the authors proposed a Gigabit Ethernet link rate switching method based on the destination IP address for typical networks in small offices or at home. However, this method has a problem in that the communication is interrupted for a few seconds when the link rate is switched. To solve...
This paper presents implementation of a reactive base station selection scheme for millimeter-wave (mmWave) communications. In mmWave communications, the frame loss rate increases and the throughput sharply decreases when a pedestrian blocks a line-of-sight (LOS) path. To alleviate this human blockage problem, base stations can be selected so as to maintain LOS paths on the basis of communication...
Within IEEE 802.11 Wireless Local Area Networks (WLANs), client stations can move freely, but because of the short range of their Access Points (APs), they usually need to reassociate with different APs to continue to communicate. When changing APs, a client station starts a process known as a handoff that can take up to 2 seconds, which is too long for real-time applications such as Voice over IP...
This paper presents the implementation scheme of MIPv6 protocol and improvement of key technology based on Adhoc network in Linux. The framework of implementing MIPv6 protocol is designed. The key technology of protocol implementation procedure is proposed, and the handover delay of mobility is analyzed and reduced. Finally experimental scenarios are set up, and the performance of mobile handover...
The packer switching service of the third-generation mobile communication network (3G) has provide a broader range of services, while wireless local area network (WLAN) has a faster speed in information transmission, thus making these two complementary functionally. However, with the improvement of technology and increasing of mobile users, it has a significant impact on network communication when...
Nowadays, mobile users wish to use their multi-interface mobile devices to access the Internet through network points of attachment (PoA) based on heterogeneous wireless technologies. They also wish to seamlessly change the PoAs during their ongoing sessions to improve service quality and/or reduce monetary cost. If appropriately handled, multihomed mobile nodes offer a potential solution to this...
The multiple backhaul mobile access router (MAR) can provide high capacity and high performance Internet access for emerging mobile wireless applications. In this paper we improve the MAR with the capability to stripe traffic from clients over multiple available network devices. The MAR allows different backhauls to be used simultaneously and accommodates diverse policies. We present experimental...
Metro Ethernet services are now being delivered over nation wide metro Ethernet networks, which are switched layer 2 networks. Delivering IP control protocols like ARP and DHCP over these networks is a challenge. There are inherent scalability problems in the way these protocols use broadcast to discover the services. This paper presents a uniform and scalable architecture based on distributed directory...
Minimizing handoff latency and achieving near-zero packet loss is critical for delivering multimedia infotainment applications to fast-moving vehicles that are likely to encounter frequent handoffs. In this paper, we propose a dual-radio cross-layer handoff scheme for infrastructure-mode 802.11 Wireless Networks that achieve this goal. We present performance results of an implementation of our algorithm...
With the rapid growth of mobile Internet, offering seamless connectivity and high-speed multimedia services in different types of wireless networks are important features in next generation wireless networks (4G networks). Many researchers envision that the 4G networks will consist of many radio access technologies which integrate into all IP-based networks while providing seamless handoffs across...
Multi-homing is increasingly being employed by large enterprises to extract good performance and reliability from their connections. The integration of existing and emerging heterogeneous wireless networks requires the design of intelligent failure detection and recovery schemes to enable mobile users to switch between networks and experience uninterrupted service continuity anywhere, anytime. Real...
This paper deals with the packet reordering problem of the mobile stream control transmission protocol (mSCTP) for vertical handover in heterogeneous wireless networks, in which might occur due to the discrepancy of link bandwidth and transmission delay when MN switches its primary path into a new path with different characteristics such as link bandwidth and transmission delay. This packet reordering...
This paper describes the vertical handover architecture with low latency handover for mobile terminals which supports interworking between heterogeneous networks. The vertical handover architecture defines handover-related modules for mobile terminal and the handover switching flows among them. We adapt low latency handover method to mobile IP for reducing handover time. The architecture is designed...
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