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This paper describes a field demonstration and presents the network performance of an 802.11 ground-UAV network composed of 11 ground stations, a mobile vehicle and two fixed wing UAVs, connected by two routing gateways to a legacy wired network. The network effects demonstrated include mobility, network partitions and merges, and gateway failovers. The paper presents experimental results for recorded...
IPSec VPN is widely used to protect remote data access. IKE protocol is the mandatory key management protocol of IPSec protocol, it provides a manual configuration method for IPSec VPN. But manual configuration is complex, unreliable, unmanageable, and especially less of support for cross-domain management. This paper proposes an IKE negotiation management system based on X.509, called NeoMAN. The...
The lifetime of a wireless network is significantly affected by the energy consumed on data transmission. One approach which allows reduction of the transmission energy consumption is the new networking paradigm - the delay tolerant networks (DTNs). The topology of DTNs consists of nodes with short transmission range, thus allowing the reduction of energy consumption. However, this short transmission...
We present CORE (common open research emulator), a real-time network emulator that allows rapid instantiation of hybrid topologies composed of both real hardware and virtual network nodes. CORE uses FreeBSD network stack virtualization to extend physical networks for planning, testing and development, without the need for expensive hardware deployments. We evaluate CORE in wired and wireless settings,...
In this demo, we showcase DiffQ - a congestion control protocol inspired by theoretical cross-layer optimization approaches. DiffQ can support congestion control for network flows that use either single-path or opportunistic multi-path routing. Our demo will focus on the performance in single-path routing environments, where contemporary end-point congestion control algorithms like TCP face severe...
The gateway system is an essential component for network-to-network communication using different protocols inside a distributed system. Since reliability is an important aspect in an automotive system, here we propose a method for improving the reliability of the gateway system by using OSEK/VDX and duplication scheme. Three factors were considered for improving the reliability of the gateway. First,...
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