As an alternative technology to radio-frequency-based communication, visible light communication(VLC) has attracted tremendous interest from both academia and industry. For its medium access control (MAC) protocol, most existing design has focused on the half-duplex mode, which can be inefficient for two-way communications. In this paper, we propose a novel full-duplex MAC protocol for VLC networks. Different from half-duplex…
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Collision-free full-duplex UWB communication based on the Standard IEEE.802.15.4a
Using UWB for wireless short range, low rate communication is attracting growing interest due to its low power consumption and very high bandwidth. Regarding these qualities, it is comprehensible that there is an interest in the automation industry to use ultra-wideband-based wireless sensor nodes to replace wired systems, to save energy and to save costs without reducing…
Capsule Robot for Obesity Treatment With Wireless Powering and Communication
An intragastric balloon robot is a less invasive and effective method for morbid obesity treatment. Traditional balloon robots need insertion tools and endoscopes for placement and removal of balloons in the stomach, which may cause complications such as nausea and sickness. This paper proposes a novel capsule robot for obesity treatment with wireless powering and communication.…
Active probing assisted monitoring for software defined networks
Efficient and agile control-plane design is crucial for emerging flexible, on-demand optical networks. Active probing assisted monitoring is proposed and shown to reduce monitoring time by around 75% to achieve rapid monitoring in optical networks.
Demonstrating a software defined network (SDN) using Carrier Ethernet Switch Routers in a provider network
We demonstrate SDN in a service provider network using adapted Carrier Ethernet Switch Routers developed based on principles of segment routing. SDN based service composition and delivery is showcased and validated.
Cellular software defined networking: a framework
Today’s mobile customers desire to remain connected anywhere, at any time, and using any device. This phenomenon has encouraged mobile network operators to build complex network architectures by incorporating new features and extensions, which are harder to manage and operate. In this article we propose a novel and simplified architecture for mobile networks. The proposed architecture, which we call CSDN…
Customizable Autonomic Network Management: Integrating Autonomic Network Management and Software-Defined Networking
The increased complexity of emerging and future networks and services requires the use of sophisticated but simplified management and control that will minimize the burden of human presence and manual operation. Autonomic network management (ANM), on the one hand, and software definednetworking (SDN), on the other hand, have appeared with the promise to meet these requirements and enhance the efficiency of the…
Rethinking virtual private networks in the software-defined era
Multi Protocol Label Switching (MPLS) Virtual Private Networks (VPNs) have seen an unparalleled increasing adoption in the last decade. Although their flexibility as transport technology and their effectiveness for traffic engineering are well recognized, VPNs are difficult to set up and manage, due to the complexity of configurations, to the number of involved protocols, and to the…
Software-defined, virtualized networking and beyond 100G
Network Virtualization is coming to play the important role in network architecture because there are many flexible resources are available in ICT infrastructure. In this paper, we describe state-of-the-art challenges to be forced in implementing network virtualization functions and several use cases of utilizing network virtualization to get more value than is provided by using existing network architecture. We also discuss the future direction…
Software defined network traffic measurement: Current trends and challenges
Next generation networks such as Software Defined Networks (SDN) must support the integration of new paradigms of service offerings such as virtual cloud computing, big data applications, data centers services, and rich multimedia content. Operators of next generation SDNs are responsible for configuring policies that employ traffic monitoring tools and measurement mechanisms to detect and react to a wide range of network events…