Multipath transport protocols utilize multiple network paths (e.g., WiFi and cellular) to achieve improved performance reliability, compared with their single-path counterparts. The scheduler of a multipath protocol determines how distribute the data packets onto different paths. However, state-of-the-art schedulers face challenge when dealing heterogeneous dynamic path characteristics (i.e., packet loss, fluctuation delay). In this paper, we propose Peekaboo, novel learning-based that is...

Widespread adoption of indoor positioning systems based on WiFi fingerprinting is at present hindered by the large efforts required for measurements collection during offline phase. Two approaches were recently proposed to address such an issue: crowdsourcing and RSS radiomap prediction, either interpolation or propagation channel model fitting from a small set measurements. prediction promises better accuracy when compared crowdsourcing, but no systematic analysis impact system parameters...

Although Starlink has been rolled-out for several years, there is still a lack of knowledge regarding system details and performance characteristics. To address this, we perform network layer measurement campaign utilizing precise times-tamping to analyze throughput variations at multiple time scales, infer timing details. On larger timescales quantify the diurnal where varies with day. medium establish likely frequency allocation beam switching period be 15 seconds. The associated...

The fifth generation (5G) of cellular networks aims at providing very high data rates, ultra-reliable low latency, and massive connection density. As one the fundamental design trends toward these objectives, 5G exploits multi-connectivity (i.e., concurrent use multiple access networks), where multipath transport protocols have emerged as key technology enablers. scheduler a protocol determines how to distribute packets onto different paths has critical impact on performance. Within this...

In the last years, Internet of Things (IoT) has emerged as a key application context in design and evolution technologies transition toward 5G ecosystem. More more IoT have entered market represent important enablers deployment networks interconnected devices. As network spatial device densities grow, energy efficiency consumption are becoming an aspect analyzing performance suitability different technologies. this framework, survey presents extensive review technologies, including both...

Mobile networks are highly complex systems. Therefore, it is crucial to examine them from an empirical perspective better understand how network features affect performance, so suggest additional improvements. To this aim, paper presents a large-scale dataset of measurements collected over fourth generation (4G) and fifth (5G) operational networks, providing Long Term Evolution (LTE), Narrowband Internet Things (NB-IoT), 5G New Radio (NR) connectivity. We our during seven weeks in Rome,...

Fifth Generation (5G) has been acknowledged as a significant shift in cellular networks, expected to run significantly different classes of services and do so with outstanding performance terms low latency, high capacity, extreme reliability. Managing the resulting complexity mobile network architectures will depend on making efficient decisions at all levels based end-user requirements. However, achieve this, it is critical first understand current ecosystem capture device heterogeneity,...

The weighted k-nearest neighbors (WkNN) algorithm is by far the most popular choice in design of fingerprinting indoor positioning systems based on WiFi received signal strength (RSS). WkNN estimates position a target device selecting k reference points (RPs) similarity their fingerprints with measured RSS values. then obtained as sum positions RPs. Two-step algorithms were recently proposed, which RPs are divided into clusters using affinity propagation clustering algorithm, and one...

Motivated by recent theoretical challenges for 5G, this study aims to position relevant results in the literature on code‐domain non‐orthogonal multiple access (NOMA) from an information‐theoretic perspective, given that most of intuition NOMA relies another domain, is, power domain. Theoretical derivations several schemes are reported and interpreted, adopting a unified framework focuses analysis spreading matrix, terms load, sparsity, regularity features. The comparative shows it is...

Built on top of the Long Range (LoRa) physical layer, LoRa Wide-Area Network (LoRaWAN) protocol has recently emerged as one most promising Low-Power (LPWAN) technologies, for several Internet Things (IoT) applications. LoRaWAN introduces Adaptive Data Rate (ADR) mechanism, aiming to deliver a fair compromise between network performance and system reliability. ADR performs adaptive tuning communication parameters, e.g., Spreading Factor (SF), which is used modulate transmitted signals....

The fifth generation (5G) cellular network aims at providing very high data rates, ultra reliable low latency communications, and a vast increase of connection density. As one the design trends towards these objectives, 5G exploits multi-connectivity, i.e., concurrent use multiple access networks. Access Traffic Steering, Switching, Splitting (ATSSS) architecture has recently been proposed to enable multipath transport protocols have emerged as key ATSSS technology enabler. Within this...

Fifth Generation (5G) networks are becoming the norm in global telecommunications industry. In this paper, we present first large-scale measurement study on commercial 5G Non Standalone (NSA) deployments a European country. We leverage collected dataset, which covers two Mobile Network Operators (MNOs) Rome, Italy, to first, network deployment and radio coverage aspects, second, explore performance of use cases related enhanced Broadband (eMBB) Ultra-Reliable Low Latency Communication...

Understanding radio propagation characteristics and developing channel models is fundamental to building operating wireless communication systems. Among others uses, characterization modeling can be used for coverage performance analysis prediction. Within this context, paper describes a comprehensive dataset of measurements performed analyze outdoor-to-indoor in the mid-band spectrum identified operation 5th Generation (5G) cellular Previous efforts band were made by using collected on...

The high heterogeneity of 5G use cases requires the extension traditional per-component testing procedures provided by certification organizations, in order to devise and incorporate methodologies that cover requirements from vertical applications services. In this paper, we introduce an experimentation methodology is defined context 5GENESIS project, which aims at enabling both network components validation E2E KPIs. most important contributions are its modularity flexibility, as well...

Fifth Generation (5G) cellular networks are gaining popularity and soon expected to become the norm in global telecommunications industry. In this paper, we follow an experimental approach study key aspects of Handover (HO) events commercial 5G Non Standalone (NSA) deployments. We collect our dataset by conducting a large-scale measurement campaign city Rome, Italy. With analysis, aim first, empirically evaluate current HO strategies followed NSA, second, show impact HOs on end-user...

Ultra-wideband (UWB) and WiFi technologies have been widely proposed for the implementation of accurate scalable indoor positioning systems (IPSs). Among different approaches, fingerprinting appears particularly suitable IPSs was also UWB IPSs, in order to cope with decrease accuracy time arrival (ToA)-based lateration schemes case severe multipath non-line-of-sight (NLoS) environments. However, so far, two analyzed under very assumptions, no fair performance comparison has carried out. This...

Multi-armed bandit (MAB) models are a viable approach to describe the problem of best wireless network selection by multi-Radio Access Technology (multi-RAT) device, with goal maximizing quality perceived final user. The classical MAB model does not allow, however, properly multi-RAT in which device typically performs set measurements order collect information on available networks, before takes place. foresees fact only one possible action for player, is among different arms at each time...

The lack of publicly available large-scale measurements has hindered the derivation empirical path-loss (PL) models for Narrowband Internet Things (NB-IoT). Therefore, simulation-based investigations currently rely on conceived other cellular technologies, which are characterized, however, by different bandwidth, carrier frequency, and infrastructure deployment, among others. In this article, we take advantage data from a measurement campaign in city Oslo, Norway, to provide first...

Fifth Generation (5G) networks are becoming the norm in global telecommunications industry, and Mobile Network Operators (MNOs) currently deploying 5G alongside their existing Fourth (4G) networks. In this paper, we present results insights from our large-scale measurement study on commercial Non Standalone (NSA) deployments a European country. We leverage collected dataset, which covers two MNOs Rome, Italy, to network deployment radio coverage aspects, explore performance of use cases...

The interest for RF-based indoor localization, and in particular WiFi RSSI-based fingerprinting, is growing at a rapid pace. This despite the existence of trade-off between accuracy location estimation density laborious time consuming survey collecting training fingerprints. A generally accepted concept increasing dataset, without an increase amount physical labor needed surveying environment additional fingerprints, to leverage propagation model generation virtual process, however, burdens...