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In this demonstration we present a platform that encompasses all of the components required to realistically evaluate the performance of Dynamic Adaptive Streaming over HTTP (DASH) over a real-time NS-3 simulated network. Our platform consists of a network-attached storage server with DASH video clips and a simulated LTE network which utilises the NS-3 LTE module provided by the LENA project. We stream...
Network Function Virtualization promises to enable dynamic management of software-based network functions. We envision a dynamic and flexible network that can support a smarter data plane than just simple switches that forward packets. This network architecture supports complex stateful rourtng of flows where processing by network functions (NFs) can transform packet data, customized on a per-flow...
One of the key performance parameters targeted in 5G mobile networks is less than 1 ms latency of the radio part. When this requirement is met, such innovative services as human-to-machine and machine-to-machine real-time remote controls presented in Tactile Internet are expected. In this paper, we propose a low latency packet transport system that has a quick path-switching method and a packet-recovery...
Uploading of huge files to cloud servers through mobile communication has been becoming more popular in recent years. However, current uploading throughput is frequently limited due to bottlenecks in server processing ability and/or narrow bandwidth sections of networks. For this study, we aimed to improve the user experience of uploading in future wireless access environments. We propose a novel...
This demo will show the key features of a Platform as-a-Service (PaaS) we have proposed in a research paper accepted for presentation at IEEE LANMAN 2016 conference. The proposed PaaS enables IoT applications provisioning in hybrid cloud/fog environments. Two goals are assigned to the demo. On the one hand, we will highlight how IoT applications can be provisioned in such environments. On the other...
We investigate relationships between application level Quality of Service (QoS) for Internet of Things (IoT) and that of underlying networks. We particularly focus on intelligent IoT devices, such as drones and robots, and network technologies supporting them. We assume our target use cases as IoT services controlled by remote servers or terminals operated by human. In this service, delayed information...
MobilityFirst (MF), as a realization of Information Centric Network architecture, places intelligent functionality, such as storage and reliability, inside the network to assist with data delivery. The MF architecture requires effective congestion and flow control to efficiently support data delivery at scale. Traditional end-to-end, window-based congestion control like that used by TCP is unsuitable...
The introduction of SDN in Service Providers' networks like GÉANT is a challenging task. Prototypes of new generation services have to exhibit “carrier grade” characteristics, meet the high level expectations and specialized needs of GÉANT customers. In this demonstration, we present the SDN based prototype of GÉANT Open service, used by GÉANT customers and approved commercial partners to interconnect...
OpenFlow switches have predefined actions to be executed by the controller, but if any undefined actions need to be executed on given packets, they are transferred to the controller by the exception mechanism called Packet-In and processed there. When we execute undefined custom actions with Packet-In on the controller, there are three problems. (1) concentration of Packet-In messages, (2) latency...
Transmission at 60GHz millimetre wavelengths is often prone to strong signal attenuations and disconnections when-ever objects greater than the wavelength of the propagating signal interrupts the line-of-sight. When this occurs, the network becomes unreliable and its performance is severely affected by unexpected and frequent disconnections, loss of data, retransmissions, waste resources and increased...
The generalization of distributed systems-of-systems lead to increasing management and operation complexity. A sound approach to deal with this complexity is to leverage overlay networks and the higher level of abstraction they allow for distributed operations. In particular, the virtualization of underlying network resources allows providing a range of reusable network services and compose them with...
With the miniaturization of devices and development of network infrastructure, the use of Machine-to-Machine (M2M) or Internet of Things (IoT) services are becoming widespread. The arrival of M2M/IoT raises many questions such as how to suit the current computer security standard to IoT devices, how to accommodate the huge number of IoT devices, and how to meet the heterogonous requirements from a...
An incentive problem of ad hoc networks still remains for relaying frames from other nodes. By utilizing the Social Network System such as Twitter and Facebook, it is possible to estimate the degree of intimacy of friendship links not only to direct friends but also indirect friends such as friends-of-friends. If we provide links of ad-hoc network in relation to direct/indirect friends instead of...
In this work we discuss the limitations of link emulators based on conventional network stacks, and present our alternative architecture called TLEM, which is designed to address current high speed links and be open to future speed improvements. TLEM is structured as a pipeline of stages, implemented with separate threads and with limited interactions with each other, so that high performance can...
In future mobile networks, we anticipate the massive use of small cells to meet the high demand of wireless resources. With such a mobile network infrastructure, we expect very frequent handovers during communication, and these degrade application layer performance. To overcome this problem, we propose a service centric handover scheme. With this scheme, a network recelves information from the application...
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