In this study, a new method was developed to automate vehicles. Numerous vehicle control systems have been realized for electronic steering, driving, and braking. Higher-standard vehicle control systems have increased costs. This study focused on cloud vehicle control using roadside sensors and computers. If a high-standard vehicle control system can be realized by using vehicles…
Tags: OMNeT++ AODV
Closed form expression of outage probability in DCSK cooperative communication systems over Nakagami-m fading channels
In this paper, two user Cooperation systems based on differential chaos shift keying (DCSK) with orthogonal sub-channel in the broadcast phase and cooperative phase using Walsh code sequence is proposed. Single relay of decode and forward (DF) type is investigated according to the conventional cooperation protocol. Outage probability is derived and verified by simulation. Independent…
Exact Capacity of Amplify-and-Forward Relayed Optical Wireless Communication SystemsExact Capacity of Amplify-and-Forward Relayed Optical Wireless Communication Systems
In this letter, we model a dual-hop subcarrier intensity modulated amplify-and-forward (AF) relayed optical wireless communication system with the assumption that direct communication between source and destination is not feasible. The optical channels are considered to be impaired with path loss, misalignment errors, and atmospheric turbulence, and are modeled assuming independent but not necessarily identically distributed Gamma-Gamma fading statistics.…
Software-defined wireless mesh networks: architecture and traffic orchestration
SDN has been envisioned as the next generation network paradigm by decoupling control plane and data plane, such that network management and optimization can be conducted in a centralized manner using global network information. In this article, we study how to apply SDN concept to a wireless meshnetwork that has been widely adopted by various applications. We first propose a novel architecture…
SoftNet: A software defined decentralized mobile network architecture toward 5G
Mobile cloud computing and other new emerging communication paradigms such as mobile socialnetworking and Internet-of-Things, have brought challenges in flexibility, efficiency, and scalability to the current LTE network. Inspired by thinking of the fundamental mechanisms in LTE as reasons causing those problems, SoftNet, a software defined decentralized mobile network architecture toward 5G, is proposed in this article following principles proposed for designing…
Selective Packet Inspection to Detect DoS Flooding Using Software Defined Networking (SDN)
Software-defined networking (SDN) and Open Flow have been driving new security applications and services. However, even if some of these studies provide interesting visions of what can be achieved, they stop short of presenting realistic application scenarios and experimental results. In this paper, we discuss a novel attack detection approach that coordinates monitors distributed over a network and controllers…
Towards trusted software-defined networks using a hardware-based Integrity Measurement Architecture
The rise of software-defined networks in recent years has allowed unprecedented agility in networkconfiguration and orchestration. As physical links and configurations become virtualised, this has created many opportunities for dynamic and transparent deployment of services. This however, opens up a potential attack surface for new forms of attack. Thus, with the combination of SDN elements abstracting their administration to network administrators…
Virtual function placement and traffic steering in flexible and dynamic software defined networks
The integration of network function virtualization (NFV) and software defined networks (SDN) seeks to create a more flexible and dynamic software-based network environment. The line between entities involved in forwarding and those involved in more complex middle box functionality in the network is blurred by the use of high-performance virtualized platforms capable of performing these…
Real-time demonstration of software-defined Elastic interface for flexgrid networks
We demonstrate a real-time Elastic Interface for future flex-grid networks with a software-definedsymbol rate transmission. Using PDM-QPSK modulation, live experiments show a line rate adaptation from 10.7 to 107Gbit/s with a sub-millisecond reconfiguration time.
GreCo: An Energy Aware Controller Association Algorithm for Software Defined Networks
Software Defined Networks (SDNs) separate the control and data planes of devices to expedite the deployment, configuration and evolution of networks. In this respect, controllers play a key role. In particular, they control the behavior of switches and must do so quickly. This, however, may be at odds with the goal of reducing the energy consumption of a SDN…