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The vision of cooperative and automated driving sets new challenges for various industry sectors and research domains. In this context, the telecommunications community is called to provide reliable communication systems for vehicle-to-anything (V2X) communication that combined with sensor-based technologies will improve the performance of automated driving and increase further traffic safety. 3GPP...
Internet of vehicles (IoVs) emerges as a promising technology to facilitate vehicular wireless communication by approving vehicle-to-everything (V2X) services for intelligent transportation systems including vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I) and vehicle-to-pedestrian (V2P) services. V2V networks have been rapidly developed to support short distance data transmission among vehicles...
In this paper, we present a Vehicular version of the Shared UE-side Distributed Antenna System (SUDAS) i.e. Vehicular SUDAS which enables high throughput wireless communication in high mobility Vehicle-to-X (V2X) scenarios. Vehicular SUDAS uses shared virtual antennas, termed UE-side Radio Units (URUs), which utilize both licensed sub-6 GHz band and unlicensed millimetre wave band, to achieve a virtual...
The Third Generation Partnership Project (3GPP) has been working on developing specifications on Machine to Machine Communications (M2M) and on the emerging Internet of Things (IoT) bringing light into the associated service and network requirements. This paper presents a special form of M2M/IoT communication, where at least one communication device is part of a vehicle that automatically communicates...
The ongoing efforts in the research, development and standardization of 5G, by both industry and academia, have resulted in the identification of enablers (Software Defined Networks, Network Function Virtualization, Distributed Mobility Management, etc.) and critical areas (Mobility management, Interference management, Joint access-backhaul mechanisms, etc.) that will help achieve the 5G objectives...
The Xhaul architecture presented in this article has a goal of developing a 5G integrated backhaul and fronthaul transport network enabling flexible and software-defined reconfiguration of all networking elements in a multi-tenant and service-oriented unified management environment. The Xhaul transport network is required to have the capability of carrying multiple traffic, such as CPRI and Ethernet,...
Activities related to the 3GPP high speed train (HST) scenario in the super high frequency (SHF) band are described in this paper. Communication between an onboard relay station and remote radio head placed along the railway is considered in the scenario. The content of the paper focuses on motivations for considering the scenario in 3GPP, descriptions of the HST channel model, proposed new radio...
In order to address the energy issue and enhance the feasibility of Information-Centric Networking (ICN) in the case of access networks, this research proposes a novel Green ICN design which can adapt power consumption of network devices to their optimized real-time link-utilizations based on content popularity levels. We utilize dynamic ALR (Adaptive Link Rate) based scheme for content nodes to provide...
This paper discusses the coordinated utilization of unlicensed spectrum as key enabler for the fifth generation (5G) ultra-dense networks (UDNs) as a means of enhancing spectral re-use by allocating “on-demand” unlicensed radio resources, particularly when licensed spectrum is highly loaded. Furthermore, proposed licensed-assisted access (LAA) approach is applied to 5G dynamic radio topologies, such...
Recent development of wireless communication systems and standards is characterized by constant increase of allocated spectrum resources. Since lower frequency ranges cannot provide sufficient amount of bandwidth, new bands are allocated at higher frequencies, for which operators might resort for deploying more base stations to ensure the same coverage. Connecting increased number of base stations...
A Flying Ad-hoc Network (FANET) is a wireless ad-hoc network specifically designed for the communication of Unmanned Aerial Vehicles (UAVs). Multicast routing is one of the vital aspects in wireless ad-hoc networks. Research works have been proposed to tackle the challenges in multicast routing in ad-hoc network environments with multi-hop communication. Nevertheless, the conventional multicast routing...
This paper identifies that the anycast communication pattern is needed in the Machine Type Communications (MTC), where there could be multiple MTC devices being deployed in the same area for the same type of data, the client only cares about the data being retrieved but not where the data comes from. Currently the MTC server can provide such anycast service, but with large signaling overhead and bandwidth...
The paper presents system level simulation results on future base station energy saving using a time-triggered sleep model. The energy efficiency of future base station is compared in macro cellular network against a comparable baseline without usage of sleep modes. Furthermore, results for corresponding 4G case are shown using a restricted set of sleep modes supported by 4G networks. The paper also...
Nowadays the adoption of IoT solutions is gaining high momentum in several fields, including energy, home and environment monitoring, transportation, and manufacturing. However, cybersecurity attacks to low-cost end-user devices can severely undermine the expected deployment of IoT solutions in a broad range of scenarios. To face these challenges, emerging software-based networking features can introduce...
Virtualization, containerization and softwarization technologies enable telecommunication systems to realize multitenancy, multi-network slicing and multi-level services. However, the use of these technologies to such ends requires a redesign of the telecommunications network architecture that goes beyond the current long term evolution-advanced (LTE-A). This paper proposes a novel hierarchical and...
The Third Generation Partnership Project (3GPP) is currently specifying the next (fifth) generation “5G” of the mobile network including a new radio interface. This work is performed in most of the 3GPP working groups on all layers and just passed the study phase with the beginning of documenting normative specifications. The new 5G system is designed to be the enabler platform for different services...
In a modern telco cloud, network functions are performed by groups of single or interconnected virtual machines (VMs), which form virtualized network functions (VNFs). Securing these VNFs is both important and challenging, since the VNFs might be performing some mission critical operations and exchanging sensitive information among each other. The problem lies in the implementation of current cloud...
5G will provide broadband access everywhere, entertain higher user mobility, and enable connectivity of massive number of devices (e.g. Internet of Things (IoT)) in an ultrareliable and affordable way. The main technological enablers such as cloud computing, Software Defined Networking (SDN) and Network Function Virtualization (NFV) are maturing towards their use in 5G. However, there are pressing...
The goals of 5G networks — low latency, high bandwidth, and support for fast mobility — are non-trivial and they demand improvements across all involved technology fields. Researchers are therefore exploring approaches that leverage on network function virtualization and software-defined networking for meeting the demands of verticals expected to use 5G networks. One approach which appears promising...
Mobile networks up to this point have used general packet radio service (GPRS) tunneling protocol (GTP) in the core network. The fifth generation (5G) will be a major revolution in mobile networks and there have been discussions onto adopting a different protocol, with the proposals being generic routing encapsulation (GRE), virtual extensible local area network (VXLAN) and generic network virtualization...
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