Software-Defined Networking (SDN) is an emerging network paradigm that simplifies networkmanagement by decoupling the control plane and data plane, such that switches become simple data forwarding devices and network management is controlled by logically centralized servers. In SDN-enabled networks, network flow is managed by a set of associated rules that are maintained by switches in their local Ternary Content Addressable Memories (TCAMs) which support high-speed…
Tags: OMNeT++ WBAN
Body Electric: Wireless Power Transfer for Implant Applications
The electrical properties of biological cells, tissues, and organs studied in electrophysiology not only provide information about the normal/abnormal activities of human bodies but also provide a means to directly restore, repair, replace, or recreate physiological functions in humans to improve quality of life. For example, cardiac pacemakers, implanted in millions of patients, deliver electrical pulses into…
Resource Allocation Strategies for Network-Coded Video Broadcasting Services Over LTE-Advanced
Video service delivery over 3GPP Long Term Evolution-Advanced (LTE-A) networks is gaining momentum with the adoption of the evolved Multimedia Broadcast Multicast Service (eMBMS). In this paper, we address the challenge of optimizing the radio resource allocation process so that heterogeneous groups of users, according to their propagation conditions, can receive layered video streams at…
STS: Space-time scheduling for coordinating self-organization network functions in LTE
Self-Organizing Networks (SON) and a number of SO functions (SFs) have been proposed, e.g. in theLTE standard. Since SFs operate on the same network, adjusting the same set of parameters, conflicts arise. Mechanisms are thus required to resolve or minimize these conflicts. We propose Space-Time scheduling procedures that allow for separating the execution of SFs at…
Ethanol: Software defined networking for 802.11 Wireless Networks
Wireless Networks have become ubiquitous and dense to support the growing demand from mobile users. To improve the performance of these networks, new approaches are required, such as context and service aware control algorithms, which are not possible on today’s closed proprietary WLAN controllers. In this work, we propose Ethanol, a software-defined networking architecture for 802.11 dense WLANs. This paper describes…
Enhancing the quality level support for real-time multimedia applications in software-defined networks
Nowadays, the explosive growth of real-time applications that need stringent Quality of Service (QoS) and Quality of Experience (QoE) support, forces network programmers to design network protocols that deliver specified performance guarantees. This paper exploits the use of Software-DefinedNetworking (SDN) in conjunction with the OpenFlow protocol to differentiate network services with quality level assurance and to respect agreed Service Level Agreements. Initially, we define a…
Botnet detection using software defined networking
Software Defined Networking (SDN) is considered as a new approach promising simplified networkmanagement by providing a programmable interface. The idea of SDN is based on the separation of control plane from the data plane in networking devices. This is achieved by having the networkintelligence centralised in what is called as SDN controller. In this paper we propose techniques for botnet detection in networks using…
Physical Modeling and Performance Bounds for Device-free Localization Systems
In this letter, an analytically tractable model based on diffraction theory is proposed to describe the perturbations of the electromagnetic propagation of radio signals caused by the presence of a moving object in the two-dimensional (2-D) area near the transmitting/receiving devices. This novel model is instrumental to the evaluation of non-cooperative device-free localization (DFL) systems as it…
Near-Optimal Scheme for Cognitive Radio Networks With Heterogeneous Mobile Secondary Users
In this paper, we study the throughput and delay scaling laws for cognitive radio network with static primary users and heterogeneous mobile secondary users coexist in the unit planar region for both without base-station case and with base-station case. The primary network consists of n randomly and uniformly distributed static primary users with higher priority…
A Network-Assisted Approach for RAT Selection in Heterogeneous Cellular Networks
When several radio access technologies (e.g., HSPA, LTE, WiFi, and WiMAX) cover the same region, deciding to which one mobiles connect is known as the Radio Access Technology (RAT) selection problem. To reduce network signaling and processing load, decisions are generally delegated to mobile users. Mobile users aim to selfishly maximize their utility. However, as…