The fifth generation wireless systems are expected to rely on a large number of small cells massively offload traffic from the cellular and even local area networks. To enable this functionality, mm-wave (EHF) Terahertz (THF) bands being actively explored. These characterized by unique propagation properties compared with microwave systems. As result, interference structure in these could be principally different what we observed so far at lower frequencies. In paper, using tools stochastic...

To satisfy the stringent capacity and scalability requirements in fifth generation (5G) mobile networks, both wireless access backhaul links are envisioned to exploit millimeter wave (mmWave) spectrum. Here, similar design of links, mmWave connections must also address many challenges such as multipath propagation dynamic link blockage, which calls for advanced solutions improve their reliability. these challenges, 3GPP New Radio technology is considering a flexible reconfigurable...

The use of extremely high frequency (EHF) or millimeter-wave (mmWave) band has attracted significant attention for the next generation wireless access networks. As demonstrated by recent measurements, mmWave frequencies render themselves quite sensitive to “blocking” caused obstacles like foliage, humans, vehicles, etc. However, there is a dearth analytical models characterizing such blocking and consequent effect on signal reliability. In this paper, we propose novel, general, tractable...

Millimeter wave (mmWave) and terahertz (THz) radio access technologies (RAT) are expected to become a critical part of the future cellular ecosystem providing an abundant amount bandwidth in areas with high traffic demands. However, extremely directional antenna radiation patterns that need be utilized at both transmit receive sides link overcome severe path losses, dynamic blockage propagation paths by large static small objects, macro- micromobility user equipment (UE) makes provisioning...

mcMTC is starting to play a central role in the industrial Internet of Things ecosystem and have potential create high-revenue businesses, including intelligent transportation systems, energy/ smart grid control, public safety services, high-end wearable applications. Consequently, 5G wireless networks, imposed wide range requirements on enabling technology, such as low power, high reliability, latency connectivity. Recognizing these challenges, recent ongoing releases LTE systems...

Terahertz frequency band, 0.1-10THz, is envisioned as one of the possible resources to be utilized for wireless communications in networks beyond 5G. Communications over this band will feature a number attractive properties, including potentially terabit-per-second link capacities, miniature transceivers and, potentially, high energy efficiency. Meanwhile, specific research challenges have addressed convert theoretical estimations into commercially solutions. Due diversity challenges, on THz...

Millimeter-wave (mmWave) propagation is known to be severely affected by the blockage of line-of-sight (LoS) path. In contrast microwave systems, at shorter mmWave wavelengths such can caused human bodies, where their mobility within environment makes wireless channel alternate between blocked and non-blocked LoS states. Following recent 3GPP requirements on modeling dynamic as well temporal consistency frequencies, in this paper, a new model for predicting state user presence mobile...

The Internet of Things (IoT) undergoes a fundamental transformation by augmenting its conventional sensor network deployments with more advanced and mobile devices, such as connected self-driving cars. This fusion embedded automotive domains promises to deliver unprecedented mutual benefits, where vehicles will receive timely updates from their proximate sensors while assisting them in delivering sensory data the remote infrastructure. In this paper, we put forward vision opportunistic...

Leveraging multiple simultaneous small cell connections is an emerging and promising solution to enhance session continuity in millimeter-wave (mmWave) cellular systems that suffer from frequent link interruptions due blockage ultra-dense urban deployments. However, the available performance benefits of feasible multi-connectivity strategies as well tentative service quality gains they promise remain open research question. Addressing it requires development a novel evaluation methodology,...

Network softwarization is a major paradigm shift, which enables programmable and flexible system operation in challenging use cases. In the fifth-generation (5G) mobile networks, more advanced scenarios envision transfer of high-rate mission-critical traffic. Achieving end-to-end reliability these stringent sessions requires support from multiple radio access technologies calls for dynamic orchestration resources across both core network segments. Emerging 5G systems can already offer...

Responding to the unprecedented challenges imposed by 5G communications ecosystem, emerging heterogeneous network architectures allow for improved integration between multiple radio access technologies. When combined with advanced cloud infrastructures, they bring life a novel paradigm of (H-CRAN). The H-CRAN architecture opens door network-wide management, including coordinated cross-cell resource allocation. In this paper, emphasizing lack theoretical performance analysis, we specifically...

Future smart vehicles will incorporate high-data-rate communications and high-resolution radar sensing capabilities operating in the millimeter- wave higher frequencies. These two systems are preparing to share reuse many common functionalities, such as steerable antenna arrays. Motivated by this growing overlap, which is advanced further space cost constraints, vehicular community pursuing a vision of unified that represents major paradigm shift for next-generation connected self-driving...

The terahertz band, 0.1-10 THz, has sufficient resources not only to satisfy the 5G requirements of 10 Gb/s peak data rate but enable a number tempting rate-greedy applications. However, band brings novel challenges, never addressed at lower frequencies. Among others, scattering waves from any object, including walls and furniture, ultra-wideband highly directional links lead fundamentally new propagation interference structures. In this article, we review recent progress in modeling,...

Wireless communications in the low terahertz band (0.1 THz-1 THz) is a promising candidate to enable ultra-high-rate vehicular networks beyond 5G. The successful design and adoption of such systems require deep understanding THz channel specifics complex scenarios. In this paper, comprehensive measurement campaign reported with aim analyzing wave propagation at 300 GHz typical deployments. Following modular approach, generic scenario decomposed into basic setups that are further analyzed...

The use of unmanned aerial vehicle (UAV)- based communication in millimeter-wave (mmWave) frequencies to provide on-demand radio access is a promising approach improve capacity and coverage beyond-5G (B5G) systems. There are several design aspects be addressed when optimizing for the deployment such UAV base stations. As traffic demand mobile users varies across time space, dynamic algorithms that correspondingly adjust locations essential maximize performance. In addition careful tracking...

The network operators will soon be accommodating a new type of users: unmanned aerial vehicles (UAVs). 5G New Radio (NR) technology operating in the millimeter-wave (mmWave) frequency bands can support emerging bandwidth-hungry applications facilitated by such devices. To reliably integrate UAVs into NR-based infrastructure, system models that capture features urban environments are required. As city building blocks constitute one primary sources blockage on links from UAV to its serving...

Dual functional radar communication (DFRC) is a promising approach that provides viable solution for the problem of spectrum sharing between and applications. This paper studies DFRC system with multiple users (CUs) target. The goal to devise beamforming vectors at transmitter in such way received signal-to-clutter-plus-noise-ratio (SCNR) maximized while satisfying minimum data rate requirements individual CUs. With regard clutter, we consider two scenarios based on possibility clutter...

Communications systems operating in the millimeter-wave (mmWave) and terahertz (THz) band have been recently suggested to enable high data-rate vehicle-to-vehicle (V2V) communications 5G beyond wireless networks. However, massive deployment of such may lead significant interference, affecting performance information transmission. While multipath interference caused by signal reflections from road has extensively discussed literature, vehicles on side lanes insufficiently studied so far. In...

Outage event caused by dynamic link blockage at millimeter-wave (mmWave) frequencies is a challenging problem for cell-edge users. To address it, 3GPP currently working on multi-connectivity mechanisms that allow user to remain connected several mmWave access points simultaneously, as well switch between them in case its active connection drops. However, the actual number of such simultaneous links-named degree multi-connectivity-to reach desired tradeoff system design simplicity and outage...

Millimeter-wave (mmWave) systems suffer from a significant loss in performance when the line-of- sight (LoS) path between transmitter and receiver is obstructed due to blockage caused by humans or other obstacles. However, blocker user motion, mmWave may transition LoS non-LoS (nLoS) states. Following recent 3GPP requirements on spatial consistency for channel modeling, this paper aims analyze correlation of statistics characterize their evolution mobility static field blockers urban...

Terahertz (THz) band communications, capable of achieving the theoretical capacity up to several terabits-per-second, are one attractive enablers for beyond 5G wireless networks. THz systems will use extremely directional narrow beams, allowing not only extend communication range but also partially secure data already at physical layer. The reason is that, in most cases, Attacker has be located within transmitter beam order eavesdrop message. However, even very beams results considerably...

Driven by the unprecedented increase of mobile data traffic, D2D communications technology is rapidly moving into mainstream 5G networking landscape. While connectivity originally emerged as a enabler for public safety services, it likely to remain at heart ecosystem spawning wide diversity proximate applications and services. In this work, we argue that widespread adoption direct paradigm unlikely without embracing concepts trust social-aware cooperation between end users network operators....

The challenges of millimeter-wave (mmWave) radio propagation in dense crowded environments require dynamic re-associations between the available access points (APs) to reduce chances losing line-of-sight path. However, antenna beamsearching functionality mmWave systems may introduce significant delays course AP re-association. In this paper, we analyze user performance urban deployments that are susceptible blockage by dynamically moving crowd. Our approach relies on ergodic capacity as key...