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Content-Centric Networking (CCN) is an emerging paradigm that can anticipate growing demands of content delivery in coming years. The underlying architecture of the CCN enables users to search for content based on names. On one hand, this is a privacy-friendly feature that do not require source and destination addresses. On the other hand, semantically-rich names reveal sufficient information about...
The number of mobile terminals that have both a cellular interface and a Wi-Fi interface has been growing in the recent years. Meanwhile, Multipath TCP (MPTCP) that enables the simultaneous use of multiple paths with multiple TCP flows while showing just one regular TCP connection with the application has been standardized by the IETF and has drawn more attention recently. One feature of MPTCP is...
This paper presents a virtualised network environment that serves as a stable and re-usable platform for the analysis of malware propagation. The platform, which has been developed using VMware virtualisation technology, enables the use of either a graphical user interface or scripts to create virtual networks, clone, restart and take snapshots of virtual machines, reset experiments, clean virtual...
The alluring benefits of Mobile Cloud Computing have attracted many mobile device users. The moving property of the mobile devices can serve as the boon to its user but curse for its developers. The moving devices cause the problems of the link faults, less available resources and unreliable dynamic networking conditions. The link failure of the nodes in the changing network decreases the performance...
We provide a case study of current inefficiencies in how traffic to well-known cloud-storage providers (e.g., Dropbox, Google Drive, Microsoft OneDrive) can vary significantly in throughput (e.g., a factor of 5 or more) depending on the location of the source and sink of the data. Our case study supplements previous work on resilient overlay networks (RON) and other ideas. These inefficiencies exist...
In CONs (Content-Oriented Networks), a router can have multiple entries for the same content name when multiple repositories produce the same content. This is the inherent feature of CONs that users do not care about the places of contents servers. When an Interest packet finds multiple entries at a router on a path, a routing strategy of the router plays a very important role for effective content...
IoT resource registration and lookup interfaces have been specified for Resource Directory (RD) with defined resource link format in IETF standard. However, it has many drawbacks due to the nature of the centralized architecture. This paper proposes an ICN-based distributed RD architecture. The proposed distributed IoT resource discovery and routing mechanisms allow and reuse the existing RD resource...
This paper presents a new method for selection between replicated servers distributed over a wide area, allowing application and network providers to trade-off costs with quality-of-service for their users. First, we create a novel utility framework that factors in quality of service metrics. Then we design a polynomial optimization algorithm to allocate user service requests to servers based on the...
In this paper we study a revenue maximization problem for optical routing nodes. We model the routing node as a single server polling model with the aim to assign visit periods (service windows) to the different stations (ports) such that the mean profit per cycle is maximized. Under reasonable assumptions regarding retrial and dropping probabilities of packets the optimization problem becomes a separable...
Billions of devices are projected for deployment in the Internet of Things (IoT). Deploying these devices and their associated services is impossible manually, thus a seamless and scalable service discovery mechanism is mandatory for realizing the IoT vision. In this paper, we propose a lightweight application-layer service discovery protocol for IPv6 Low-power Personal Area Networks (6LoWPAN) called...
In the urban city life, a human usually uses his/her owned user equipment (UE) to request services provided in smart cities. In order for UEs to communicate with the public service providers, the network traffic is generated in the cellular network (e.g. Long Term Evolution (LTE) network) and the Internet very frequently. And the returned results cannot be shared among UEs although they may request...
For Internet service providers to efficiently use network resources, they need to conduct traffic engineering to dynamically control traffic routes to accommodate traffic with limited network resources. The performance of traffic engineering depends on the accuracy of traffic prediction. However, the volume of network traffic has been changing drastically in recent years due to the growth of various...
This paper presents PTNet, a new data center topology that is specifically designed to offer a high and parameterized scalability with just one layer architecture. Furthermore, despite its high scalability, PTNet grants a reduced latency and a high performance in terms of capacity and fault tolerance. Consequently, compared to widely known data center networks, our new topology shows better capacity,...
Network operators seek more flexibility to provide added-value services to their customers. We propose to leverage the IPv6 Segment Routing architecture with a example usecase. We also provide an implementation of SR-IPv6 and we evaluate its performance on broadband routers.
By saving network traffic and improving application throughput, Multicast becomes a pervasive traffic pattern in data centers. Reliable transmission is an important requirement in Modular Data Center. In this paper, we proposed a reliable multicast approach for EBSN, a modular data center structure. For efficient transmission, multiple multicast trees were constructed. To realize reliable, we chose...
Over the years, caching has been leveraged (and established) as an add-on functionality to enhance network performance. However, Information Centric Networking (ICN) conceives caching at network layer (i.e. beyond the premise of end-to-end principle) thereby making it one of the core functionalities. Further, ICN advocates named-content (another core functionality) that allows content-consciousness...
Recent SDN researches suffer from over-accumulation of unhealthy flow-load. Instead, we leverage the SDN controller network view to encode the end-to-end path information into the packet address. Our solution EncPath significantly reduces the flow-table size and the number of control messages. Consequently, the power consumption of network switches is in orders of magnitude less than other evaluated...
In this paper, we propose using software-defined networking technologies for optimal traffic engineering in cellular networks with service chaining. We study the case in which virtual machines are used to support network services and each flow requires multiple network services. To minimize the maximum load of virtual machines and guarantee that the sum rate of admitted flows is large enough, we formulate...
Information Centric Networking (ICN) is a recent networking technology but lots of research papers have already been published on this topic. Those papers includes the technology itself: the protocol, the architecture, the node; or the use-cases showing the benefits of using an ICN-based network: video streaming, Internet of Things, social networks. However, even if promising, ICN will be deployed...
Content-Centric Networking (CCN) is a promising architecture in the current Internet, and has the potential to be a revolutionary innovation in the future Network. CCN has not broken away from the binding of physical location and content name, however, the content source mobility will remain a great challenge for CCN. In addition, the problem of the large overhead incurred during the handoff requires...
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