In this paper, we present and describe VanetMobiSim, a generator of realistic vehicular movement traces for telecommunication networks simulators. VanetMobiSim mobility description is validated by illustrating how the interaction between featured macro- micro-mobility able to reproduce typical phenomena traffic.

During the last few years, continuous progresses in wireless communications have opened new research fields computer networking, aimed at extending data networks connectivity to environments where wired solutions are impracticable. Among these, vehicular traffic is attracting a growing attention from both academia and industry, due amount importance of related applications, ranging road safety control, up mobile entertainment. Vehicular ad-hoc (VANETs) self-organized built moving vehicles,...

The surge in vehicular network research has led, over the last few years, to proposal of countless solutions specifically designed for environments. A vast majority such been evaluated by means simulation, since experimental and analytical approaches are often impractical intractable, respectively. reliability simulative evaluation is thus paramount performance analysis networks, first distinctive feature that be properly accounted mobility vehicles, i.e., nodes. Notwithstanding improvements...

This article surveys the literature on analyses of mobile traffic collected by operators within their network infrastructure. is a recently emerged research field, and, apart from few outliers, relevant works cover period 2005 to date, with sensible densification over last three years. We provide thorough review multidisciplinary activities that rely datasets, identifying major categories and sub-categories in literature, so as outline hierarchical classification lines. When detailing...

Network slicing is a new paradigm for future 5G networks where the network infrastructure divided into slices devoted to different services and customized their needs. With this paradigm, it essential allocate each slice needed resources, which requires ability forecast respective demands. To end, we present DeepCog, novel data analytics tool cognitive management of resources in systems. DeepCog forecasts capacity accommodate traffic demands within individual while accounting operator's...

Mobility is the distinguishing feature of vehicular networks, affecting evolution network connectivity over space and time in a unique way. Connectivity dynamics, turn, determine performance networking protocols, when they are employed vehicle-based, large-scale communication systems. Thus, key question is: which effects does nodes mobility generate on topology built vehicles? Surprisingly, such has been quite overlooked by research community. In this paper, we present an in-depth analysis...

In this letter, we compute the exact probability that a receiver obtains N linearly independent packets among K ≥ received packets, when sender/s use/s random linear network coding over Galois Field of size q. Such condition maps to receiver's capability decode original information, and its mathematical characterization helps design so guarantee correctness transmission. Our formulation represents an improvement current upper bound for decoding probability, provides theoretical grounding...

Simulation is the tool of choice for large-scale performance evaluation upcoming telecommunication networking paradigms that involve users aboard vehicles, such as next-generation cellular networks vehicular access, pure ad hoc networks, and opportunistic disruption-tolerant networks. The single most distinguishing feature simulation lies in mobility users, which result interaction complex macroscopic microscopic dynamics. Notwithstanding improvements modeling has undergone during past few...

The deployment of 5G networks will necessarily involve the installation new base station (BS) equipment to support requirements next-generation mobile services. In a scenario where there exist already many sources electromagnetic fields (EMFs), including overlapping 2G/3G/4G technologies competing network operators, is growing concern that planning be severely constrained by limits on maximum EMF levels established in wide set regulations. goal this paper shed light EMF-aware and,...

The dynamic management of network resources is both a critical and challenging task in upcoming multi-tenant mobile networks, which requires allocating capacity to individual slices so as accommodate future time-varying service demands. Such an anticipatory resource configuration process must be driven by suitable predictors that take into account the monetary cost associated overprovisioning or underprovisioning networking capacity, computational power, memory, storage. Legacy models aim at...

By providing especially tailored instances of a virtual network,network slicing allows for strong specialization the offered services on same shared infrastructure. Network has profound implications resource management, as it entails an inherent trade-off between: (i) need fully dedicated resources to support service customization, and (ii) dynamic sharing among increase efficiency cost-effectiveness system. In this paper, we provide first investigation via empirical study management in...

This paper presents a review of the literature on network traffic prediction, while also serving as tutorial to topic. We examine works based autoregressive moving average models, like ARMA, ARIMA and SARIMA, well Artifical Neural Networks approaches, such RNN, LSTM, GRU, CNN. In all cases, we provide complete self-contained presentation mathematical foundations each technique, which allows reader get full understanding operation different proposed methods. Further, perform numerical...

During the last few years, continuous progresses in wireless communications have opened new research fields computer networking, aimed at extending data networks connectivity to environments where wired solutions are impracticable. Among these, vehicular communication is attracting growing attention from both academia and industry, owing amount importance of related applications, ranging road safety traffic control up mobile entertainment. Vehicular Ad-hoc Networks (VANETs) self-organized...

We consider a complex (i.e., nonlinear) road scenario where users aboard vehicles equipped with communication interfaces are interested in downloading large files from road-side Access Points (APs). investigate the possibility of exploiting opportunistic encounters among mobile nodes so to augment transfer rate experienced by vehicular downloaders. To that end, we devise solutions for selection carriers and data chunks at APs, evaluate them real-world topologies, under different AP...

We consider a system where users aboard communication-enabled vehicles are interested in downloading different contents from Internet-based servers. This scenario captures many of the infotainment services that vehicular communication is envisioned to enable, including news reporting, navigation maps, and software updating, or multimedia file downloading. In this paper, we outline performance limits such content by modeling process as an optimization problem, maximizing overall throughput....

Urban landscapes present a variety of socio-topological environments that are associated to diverse human activities. As the latter affect way individuals connect with each other, bound exists between urban tissue and mobile communication demand. In this paper, we investigate heterogeneous patterns emerging in activity recorded within metropolitan regions. To end, introduce an original technique identify classes traffic signatures distinctive different fabrics. Our proposed outperforms...

Despite the growing interest in a real-world deployment of vehicle- to-vehicle communication, many topological features resulting vehicular network remain largely unknown. We still lack clear understanding level connectivity achievable large-scale urban scenarios, availability and reliability connected multi-hop paths, evolution such over daytime. In this paper, we investigate how instantaneous topology would look like case Cologne, Germany, typical middle-sized European city. Through...

The current lack of reference datasets road traffic mobility for network simulation jeopardizes the reliability and reproducibility vehicular networking research. We contribute to ongoing effort develop dependable publicly available traces through following: (1) implementing an original version Simulation Urban Mobility (SUMO) conversion tool that allows importing OpenStreetMap (OSM) data in a neat automated fashion; (2) generating dataset Bologna, Italy; (3) providing novel validation...

Network slicing is an emerging paradigm in mobile networks that leverages NFV to enable the instantiation of multiple virtual - named slices over same physical network infrastructure. The operator can allocate each slice dedicated resources and customized functions allow meeting highly heterogeneous stringent requirements modern services. Managing under a challenging task requires making efficient decisions at all levels, some cases even real time, which be achieved by integrating artificial...

The economic sustainability of future mobile networks will largely depend on the strong specialization its offered services. Network operators need to provide added value their tenants, by moving from traditional one-size-fits-all strategy a set virtual end-to-end instances common physical infrastructure, named network slices, which are especially tailored requirements each application. Implementing slicing has significant consequences in terms resource management: service customization...

The combination of network softwarization with slicing enables the provisioning very diverse services over same infrastructure. However, it also creates a complex environment where orchestration resources cannot be guided by traditional, human-in-the-loop management approaches. New solutions that perform these tasks automatically and in advance are needed, paving way to zero-touch slicing. In this paper, we propose AZTEC, data-driven framework effectively allocates capacity individual slices...

We address cooperative caching in mobile ad hoc networks where information is exchanged a peer-to-peer fashion among the network nodes. Our objective to devise fully-distributed strategy whereby nodes, independently of each other, decide whether cache or not some content, and for how long. Each node takes this decision according its perception what nearby users may be storing their caches with aim differentiate own content from others'. aptly named such algorithm "Hamlet". The result...

Content downloading in vehicular networks is a topic of increasing interest: services based upon it are expected to be hugely popular and investments planned for wireless roadside infrastructure support it. We focus on content system leveraging both infrastructure-to-vehicle vehicle-to-vehicle communication. With the goal maximize throughput, we formulate max-flow problem that accounts several practical aspects, including channel contention data transfer paradigm. Through our study, identify...