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Information centric networking (ICN) is one of the emerging Internet paradigms proposed to overcome the shortcoming of the current host-centric Internet. With ubiquitous in-network caching, ICN can facilitate content delivery and reduce network delay. In this paper, we propose a novel collaborative caching scheme based on routers' position to cache popular videos on the edge routers which are closer...
Information Centric Networking (ICN) is seen as a promising solution to re-conciliate the Internet usage with its core architecture. However, to be considered as a realistic alternative to IP, ICN must evolve from a pure academic proposition deployed in test environments to an operational solution in which security is assessed from the protocol design to its running implementation. Among ICN solutions,...
Opportunistic networks (OppNet) enable users to connect each other via wireless communication without connecting to the Internet. These networks have fragile structures and the topology of the network is changed frequently, so it is impossible to have a Trust Third Party as a certificate authority. There are many different attacks against these networks and one of them is Sybil Attack. In this paper,...
Active Queue Management (AQM) mechanisms have come a long way, with an initial goal to avoid congestion to the recent most focus on reducing queue delay. The benefits of using AQM mechanisms at routers are being thoroughly studied nowadays, mainly to avoid the problem of bufferblaat. Although a lot of work has focused on analyzing the behavior of AQM mechanisms, the nature of traffic used while deriving...
Decentralized systems, such as overlay networks or content delivery networks, form a virtual network on top of a physical network leading to inefficiencies in handling network traffic as physical locations are not considered. Therefore, this work investigates, analyzes, and evaluates two feasible network locality metrics for decentralized systems to overcome such inefficiencies. Furthermore, those...
NDN (Named Data Networking) as one approach of the Content-Centric Networking (CCN) architecture, proposed by Jacobson, 2006, conceptually, has some advantages compares to the current Internet technology which build based on host-to-host TCP/IP protocol stack. However, technically, we have to examine the NDN approach, beside to prove the concept, also to get as much as able the opportunities of improvement...
Routing in Delay-/Disruption-Tolerant Networking (DTN) has long been recognized as a challenging research topic. The difficulty lies in the fact that link intermittency and network partitioning, possibly coupled with long delays, prevent the use of Internet solutions based on an up-to-date comprehensive knowledge of network topology, as communicated by routing protocols. In the literature on DTN routing,...
The decoupling of control and data plane in software-defined networking (SDN) has been shown to be promising to improve routing performance in the context of intradomain routing. The applicability of SDN in inter-domain routing, especially with respect to route convergence, has not been properly explored. In this work, we propose a mathematical model to quantify the BGP convergence time for inter-domain...
Future Internet projects such as MobilityFirst and Named Data Networking have proposed novel mechanisms to replace the Internet Protocol to better support content delivery and mobility. However, the problem of efficient data transfer across the network core has not been adequately investigated. We tackle the challenge of inter-domain cut-through switching using software-defined networking (SDN). First,...
Service function chaining provides a new service deployment model that delivers the traffic along the predefined logical paths of service functions with no regard of network topologies or transport mechanisms. The traffic path of service functions needs to be recovered at failure of the service functions but it may incur a signaling delay among control-plane and data-plane components. In order to...
Traditionally, IP geolocation has been focused on finding the exact location of a given internet host. In this work, we focus on the problem of simultaneously geolocating large numbers of IP hosts to within a discrete set of geographical regions. Towards this objective, we present a fusion algorithm that combines information from multiple, heterogeneous sources of location information. Our algorithm...
It is a well-known fact that the Internet traffic travels through public networks and these networks are vulnerable and congested. Whenever an error in a packet is detected, the packet should be retransmitted back to the receiver to reduce/overcome the data loss. Automatic repeat request (ARQ) method is a well-known data retransmission method used by protocols such as Transmission Control Protocol...
Queue management is an important part to provide better service of buffer at the Internet router. Active Queue Management (AQM) technique is used to improve the network performance like link utilization, delay, fairness and packet loss rate. In this paper we explore the impact of buffer size and round trip time (RTT) on AQM router where TCP Reno is used as transport protocol in single bottleneck dumbbell...
The Low Extra Delay Background Transport (LEDBAT) protocol is a recently standardized protocol that aims to offer a scavenger service (i.e. the goal is to exploit the remaining and unused capacity of a link). LEDBAT is a delay-based protocol mainly defined by two parameters: a target queuing delay and a gain. The RFC 6817 provides guidelines to configure both parameters that strongly impact on the...
Media webcasting and conferencing that involve many geographically distributed participants contribute significantly to congestion in the Internet. The current usage-based data pricing model does not take into account the hidden cost imposed by media streaming in the Internet core, including the network cost of replicating and relaying traffic in video multicast, and could potentially exacerbate congestion...
Recent progress in network topology modeling has shown that it is possible to create smaller-scale replicas of large complex networks, like the Internet, while simultaneously preserving several important topological properties. However, the constructed replicas do not include notions of capacities and latencies, and the fundamental question of whether smaller networks can reproduce the performance...
The market for multiplayer online games is rapidly growing in concert with the growth in broadband Internet connection services. Since such games share a virtual space among many players, it is important to match players to a group so that they share low-latency connections with each other. This is because the latency between them affects the perceived quality of their experience. In this paper, we...
Content dissemination is the primary usage of the Internet today, whereas the existing Internet architecture based on TCP/IP is mainly designed for point-to-point communications. Information-Centric Networking (ICN) has been proposed to conciliate Internet usage and technology. The idea behind ICN is to omit the notion of host and location and establish content as the first class citizen of the network...
Information-centric networking (ICN) constitutes an alternative to the conventional, IP-based, internetworking, with information itself being identified rather than the host where it resides. This approach introduces powerful tools and operations for content delivery, such as native support for multicast. Exploiting this native multicast capability is a very promising approach for multimedia applications...
The Internet has recently seen the emergence of new value added services (IPTV, VoIP, etc‥), that require Quality of Service (QoS) guarantees. Given the nature of the Internet, most of the time, the source and the destination are connected to different providers, so that multiple ISPs must cooperate in order to offer end-to-end QoS guarantees. All this without revealing how each provider implements...
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