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Low Power Wide Area Networks (LPWAN) technologies have recently triggered many research efforts and standardization activities due to the inherent possibility of both providing long range wireless communications and guaranteeing a long life for very cheap sensing devices. At the same time, the increasing interest of telco operators into such kind of networks is due to the wide range of applications...
In recent years, dramatic growth of mobile data traffic has left the operators no choice but to consider Wi-Fi networks as an economic complementary solution. To achieve this, WLANs require to adopt some of the key features of carrier-grade operators, such as centralized resource management. As an emerging paradigm, Software Defined Networking (SDN) can be used to provide salient centralized network...
The efficiency of inter-domain routing in large-scale mobile network environments is a critical issue, as traditional prefixed addresses may fail due to the dynamic topologies of mobile networks, where devices would be required to maintain massive routing tables. To address this issue, in this paper we leverage the principles of probabilistic data structures in the inter-domain routing scheme, and...
Software-Defined Networking (SDN) paradigm provides many features including hardware abstraction, programmable networking and centralized policy control to networks. In the next generation mobile networks, one of the main benefits that can be used along with these features is core/backhaul SDN-based network virtualization. In this article, we propose a novel shared SDN-based Evolved Packet System...
Growing demand for data and increasing number of devices are drastically changing the scale of operation in mobile networks. Future services and business models require efficient provisioning with enhanced traffic management. It is hard to meet these requirements on today's mobile networks that are deployed over specialized hardware. While operators are keen to adopt NFV (Network Function Virtualization)...
In response to the mobile data tsunami, the research community has studied WiFi offloading based efforts to provide an immediate solution to mitigate the load on both the cellular space and mobile core network. However, this has caused mobile network operators (MNO) to lose control and visibility on the user data since the traffic is usually directed towards the Internet bypassing the operator's core...
Nowadays, 5G mobile network environment has been studied and developed, and the concept of a vEPC (Virtualized Evolved Packet Core) has been introduced as a framework for Network Functions Virtualization (NFV). Machine-to-Machine (M2M) communications in 5G networks require much faster response than in 4G networks. However, if both the control plane (C-plane) and the data plane (D-plane) functions...
Network Function Virtualization (NFV) is enabling the softwarization of traditional network services, commonly deployed in dedicated hardware, into generic hardware in form of Virtual Network Functions (VNFs), which can be located flexibly in the network. However, network load balancing can be critical for an ordered sequence of VNFs, also known as Service Function Chains (SFCs), a common cloud and...
Network Function Virtualization (NFV) is a new paradigm, enabling service innovation through virtualization of traditional network functions located flexibly in the network in form of Virtual Network Functions (VNFs). Since VNFs can only be placed onto servers located in networked data centers, which is the NFV's salient feature, the traffic directed to these data center areas has significant impact...
This paper presents a mechanism for steering connections to different mobile networks for UAV-based reliable communications. This connection steering mechanism works by selecting the best Radio Signal Strength Indicator (RSSI) quality among the available networks in order to ensure the highest availability. In this work, we developed a test-bed to evaluate the performance of the steering mechanism...
In future mobile networks, e.g., 5G, emerging IoT services are expected to support billions of IoT devices with unique characteristics and traffic patterns. In this paper we propose an SDN-based IoT Mobile Edge Cloud Architecture (SIMECA1) which can deploy diverse IoT services at the mobile edge by leveraging distributed, lightweight control and data planes optimized for IoT communications. We prototyped...
The paper is aimed at researching the subject area, models and prototypes of secure mobile communication mesh networks providing support and operational management in critical emergency situations. Such a network represents a command technical complex that provides services of text messages and media data transfer, database services, web services, etc. A two-layer network architecture using Arduino...
Delay tolerant networks (DTN) are characterized by lack of end-to-end communications and stable infrastructures. This paper deals with DTN networks consisting of a number of heterogeneous mobile fishing vessels where some nodes, referred to as adaptive nodes, are capable of communicating through long-range Wi-Fi whereas other nodes are having simple Wi-Fi access network. The nodes form different clusters...
In the past few years, the telecommunications field experienced a rapid evolution on two main grounds: Multiple mobile network interface terminals, and mobile radio technologies. The needs of the users in terms of flow and mobility are in constant increase, making it necessary to develop a new generation of networks. The latter would be a heterogeneous wireless environment in which different access...
The article touches aspects of security in Wireless Sensor Networks. It begins with a review and classification of existing types of threats and protection methods. The main part of the paper presents the results obtained during development of a threat detection system for WSN network. The described approach is based on a mobile platform which allows separation of security mechanisms and the software...
Since the near-far problem is expected to be a significant issue in the context of tactical communications, the tolerable amount of adjacent channel interference (ACI) is an important design requirement. We describe a numerical simulator which has been developed in order to evaluate the level of ACI arising in mobile ad hoc networks (MANET) in the VHF band when a large number of nodes and radio networks...
Rapid growth of mobile traffic can be load of mobile operator's core network. Local breakout is a offloading solution of access network to save core network load and to reduce end-to-end latency. This paper proposes local breakout system in base station with Mobile Edge Computing(MEC) infrastructure. We present the service framework and interfaces for MEC server and also present architecture based...
Integration of mobile ad-hoc networks (MANETs) into infrastructure-based networks allows mobile users to access other networks. At a network boundary, some node with multiple interfaces plays an important role as a gateway. Gateway discovery mechanism is necessary for mobile nodes to discover nearby gateways but causes message exchange overhead. In order to control the overhead, we present a novel...
Recently, wireless communications technologies have invaded several daily life fields such as Vehicular Ad-hoc Networks (VANETs). VANET networks are characterized by their high mobility. Clustering seems to be as one of the control schemes used to make this global topology less dynamic. In this sight, our paper introduces a clustering mechanism based for connectivity maintenance in VANET AODV-CV....
The Radio Access Network (RAN) represents the large amount of the annual energy consumed in mobile networks. The Base Station (BS) constitutes the main component of a RAN and the its switches ON/OFF is one of the most commonly used technique in literary work to reduce the energy consumption. However, a significant amount of energy is consumed by the BS even with the standby mode. In this paper, we...
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