A5050648536- UAV Applications and Optimization
- Advanced MIMO Systems Optimization
- Cooperative Communication and Network Coding
- Full-Duplex Wireless Communications
- Antenna Design and Optimization
- Radar Systems and Signal Processing
- Software-Defined Networks and 5G
- Satellite Communication Systems
- Radio Wave Propagation Studies
- Millimeter-Wave Propagation and Modeling
- Vehicle Routing Optimization Methods
- Air Traffic Management and Optimization
- Facility Location and Emergency Management
- Optimization and Search Problems
- Sparse and Compressive Sensing Techniques
- Mobile Ad Hoc Networks
- Advanced Control and Stabilization in Aerospace Systems
- Advanced Adaptive Filtering Techniques
- Opportunistic and Delay-Tolerant Networks
- Energy Harvesting in Wireless Networks
- IoT and Edge/Fog Computing
- Robotic Path Planning Algorithms
- Advanced Wireless Communication Technologies
- Robotics and Sensor-Based Localization
- Telecommunications and Broadcasting Technologies
Tampere University
2022-2025
National Research University Higher School of Economics
2021
Multicasting in wireless access networks is a functionality that, by leveraging group communications, turns out to be essential for reducing the amount of resources needed serve users requesting same content. The support this modern 5G New Radio (NR) and future sub-Terahertz (sub-THz) 6G systems faces critical challenges related utilization massive antenna arrays forming directional radiation patterns, multi-beam functionality, use multiple Access Technologies (RATs) having distinctively...
Abstract This paper studies the designs of downlink (DL) transmit beamforming and uplink (UL) power optmization for a full duplex integrated sensing communications (FD‐ISAC) system, where FD‐ISAC base station (BS) serves DL UL communication users (CUs) also detects radar target. Previous works have either excluded communication, avoiding interference it introduces to target detection, or used beam pattern gain as performance metric in objective function. In contrast, two optimization...
Modern mobile handheld devices, such as smartphones and tablets, feature multiple wireless interfaces, some of which can support device-to-device communications, enable mesh networks on even when the infrastructure is unavailable. One key technological challenges hampering use multi-hop extremely high communication overhead route discovery maintenance algorithms. The problem especially pronounced under dynamic network conditions caused by user mobility nodes joining leaving network. In this...
The integration of unmanned aerial vehicles (UAVs) with wireless communication systems greatly enhances the application area intelligent transportation (ITS). One mission-critical applications enabled by these is disaster management, where functionality can provide users supplementary information such as escape routes, time to rescue, etc. In this paper, considering a large several locations interest, we formulate and solve optimization problem delivering critical optimizing UAV speed order...
Multicasting is a key feature of cellular systems, which provides an efficient way to simultaneously disseminate large amount traffic multiple subscribers. However, the use multicast services in fifth-generation (5G) New Radio (NR) complicated by several factors, including inherent base station (BS) antenna directivity as well exploitation arrays capable creating beams concurrently. In this work, we first demonstrate that problem multicasting 5G NR systems can be formalized special case...
The swarms of unmanned aerial vehicles (UAV) are nowadays finding numerous applications in different fields. While performing their missions, UAVs have to rely on external positioning information maintain connectivity and communications between units a swarm. However, some the critical such as rescue missions performed locations, where this is partially or fully not available, e.g., deep woods, mountains, indoors. In paper, we propose method for dynamic topology organization maintenance UAV...
Human body blockage is one of the main reasons prohibiting adoption modern millimeter wave (mmWave, 30-70 GHz) and future sub-terahertz (sub-THz, 100-300 cellular systems. To utilize system-level avoidance solutions, such as multiconnectivity, must be able to detect events prior their occurrence. this end, recent approaches have utilized machine learning algorithms operating in time domain. In our paper, we advocate for use spectral representation, where gap between pre-blockage non-blockage...
Network slicing is a technique introduced by 3GPP to enable multi-tenant operation in 5 G systems. However, the support of at air interface requires not only efficient optimization algorithms operating real time but also its tight integration into control plane. In this paper, we first present priority-based mechanism enabling defined performance isolation among slices competing for resources. Then, speed up resource arbitration process, propose and compare several supervised machine...
The design of multicast services in the fifth-generation (5G) New Radio (NR) deployments is hampered by directional nature antenna radiation patterns. This complexity further compounded emergence new deployment options, such as dual millimeter wave (mmWave) and microwave <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$(\mu$</tex-math> </inline-formula> Wave) base station (BS) deployments, well solutions....
The rise of immersive communication due to virtual reality (VR), augmented (AR) and mixed (MR) has imposed stringent requirements on the wireless systems. A basic requirement by VR/AR/MR environments (in a Metaverse) system is sensing ability. Therefore, integrated (ISAC) systems are considered an integral part Metaverse. In order improve functionality ISAC within Metaverse, this paper proposes iterative optimization algorithm solve non-convex signal clutter plus noise ratio (SCNR)...
Dual functional radar and communication (DFRC) systems are a viable approach to extend the services of future systems. Most studies designing DFRC assume that target direction is known. In our paper, we address critical scenario where this information not exactly For such system, signal-to-clutter-plus-noise ratio (SCNR) maximization problem formulated. Quality-of-service constraints for users (CUs) also incorporated as on their received signal-to-interference-plus-noise ratios (SINRs). To...
A number of critical UAV applications such as rescue missions are performed in locations, where external positioning information is unavailable. To enable situational awareness these use cases, millimeter wave (mmWave, 30 - 300 GHz) and terahertz (THz, 0.3-3 THz) bands range radars can be utilized. These characterized by extremely high resolution. However, the small antenna aperture forces system designers to utilize massive arrays reach distances hundreds meters. Thus, utilizing directional...
Network slicing is a technique to enable multi-tenant operation in future 5G systems. Efficient implementation of at the air interface requires comprehensive optimization algorithms characterized by high execution complexity. To address this issue paper, we first present priority-based mechanism enabling performance isolation between slices competing for resources. Then, speed up resource arbitration process under traffic conditions, when shares need be re-calculated sub-second timescales,...
The inherent support of sixth-generation (6G) systems enabling integrated sensing and communications (ISAC) paradigm greatly enhances the application area intelligent transportation (ITS). One mission-critical applications enabled by these is disaster management, where ISAC functionality may not only provide localization but also users with supplementary information such as escape routes, time to rescue, etc. In this paper, considering a large several locations interest, we formulate solve...