Miroslav Vozňák

Miroslav Vozňák
VŠB-Technical University of Ostrava · Department of Telecommunications

professor

About

476
Publications
85,281
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
3,134
Citations
Introduction
Professor in Telecommunication engineering. Research interests: Wireless networks, Next Generation Networks, IP telephony, Speech quality, Network security, big data analytics, generally Information and Communication Technology

Publications

Publications (476)
Chapter
Because quantum key distribution is a technology for establishing keys for symmetric encryption (preferably one-time pads, but more practically keys for AES or other conventional symmetric cryptography), end-to-end confidentiality or authentication requires a deeper look into network structure and comes with additional assumptions.
Chapter
Establishing secure cryptographic keys through an untrusted network is a fundamental cryptographic task. While the use of public key infrastructure based on computational intractability assumptions prevail, these solutions remain theoretically breakable. They are under constant threat as computational power continues to increase, new algorithms are...
Chapter
The basis of all modern networks is device which is able to manage and control network traffic. The fundamental network device is a router that connects at least two networks and has traffic directing functions. From a logical point of view, a router is the intersection of links forming a network. Its task is to accept incoming packets, analyze des...
Article
Full-text available
The transportation of cargo inside shipping containers is a risky operation that requires constant monitoring activities and real-time operational actions. Yet, the detection of the real dynamics of the container and the surrounding infrastructure and extraction of true subsequent critical events is still an unresolved issue among engineers. In thi...
Chapter
Modern telecommunications networks are based on packet-switching traffic processing and the methodology by which packets can be delivered using an arbitrary route. However, for some applications, merely finding the route to destination is insufficient. Applications can place multiple parameters in their requests, starting from the time it takes the...
Article
Full-text available
The sudden increase in containerization volumes around the globe has increased the overall number of cargo losses, infrastructure damage, and human errors. Most critical losses occur during handling procedures performed by port cranes while sliding the containers to the inner bays of the ship along the vertical cell guides, damaging the main metal...
Preprint
This work investigates the security and reliability analysis for a novel satellite-terrestrial (SatTer) network. Specifically, a satellite attempts to transmit confidential information to a ground user (GU) via the support of multiple relay nodes in the presence of an eavesdropper that tries to overhear the information. A friendly jammer is deploye...
Article
Full-text available
The evolution of non-orthogonal multiple access (NOMA) has raised many opportunities for massive connectivity with less latency in signal transmissions at great distances. We aim to integrate NOMA with a satellite communications network to evaluate system performance under the impacts of imperfect channel state information and co-channel interferen...
Article
The introduction of 5th and 6th-generation wireless networks has elevated the demand for huge device connectivity, spectral efficacy, and improved signal quality. The non-orthogonal multiple access technique (NOMA) has been demonstrated to be a candidate to address these requirements. NOMA can assist many users using the same resource block by vary...
Article
Full-text available
This letter investigates the performance of the satellite-terrestrial networks (STN), where a satellite tries to transmit information to a ground user through the help of multiple decode-and-forward relays and the existence of co-channel interference sources. In particular, the full-duplex technique and partial relay selection are applied at the re...
Preprint
Radio-frequency (RF) energy harvesting (EH) in wireless relaying networks has attracted considerable recent interest, especially for supplying energy to relay nodes in Internet-of-Things (IoT) systems to assist the information exchange between a source and a destination. Moreover, limited hardware, computational resources, and energy availability o...
Chapter
The conceptual composition of a QKD link into quantum and physical channels corresponds to similar connections in the physical world and does not preclude the dual use of fibres as both a classic and quantum channel (in fact, the SECOQC network was built on existing fibre-optic cables). Viewed from a logical perspective, the network consists of mor...
Article
The field of mobility prediction has been widely investigated in the recent past, especially the reduction of the coverage radius of cellular networks, which led to an increase in hand-over events. Changing the cell coverage very frequently, for example, may lead to service disruptions if a predictive approach is not deployed in the system. Althoug...
Chapter
The development of electronic and optical components has led to greater interest in the application of QKD solutions in everyday life. In this section, we briefly describe the currently attractive trends and approaches for future research in the field of QKD technologies.
Chapter
Quality of Service (QoS) architecture models the structure and methods of applying QoS mechanisms to satisfy QoS objectives. It is often referred to the QoS model because it uniquely defines which QoS mechanisms (such as those listed in Sect. 2.3) are used and how they are implemented. QoS architecture also defines network traffic processing polici...
Chapter
Generally, the need for and the type of signaling, or more strictly speaking, the QoS signaling protocol depends on the applied QoS architecture. Here, we distinguish between the signal and the signaling protocol, which in the literature elsewhere are commonly applied as synonyms.
Article
Full-text available
Due to the mechanical nature of container handling operations, as well as natural factors, container and handling infrastructure suffers various types of damage during use, especially within the tight and enclosed environments of a ship’s hull. In this operational environment, it is critical to detect any sort of physical impacts between the vertic...
Article
Full-text available
The article proposes a new speaker liveness test for speech verification systems. Biometric authentication systems based on speaker verification are often subject to presentation attacks which use the target speaker’s recorded speech. We propose a liveness test which uses CNN isolated word ASR as a countermeasure to repel attacks during the verific...
Article
Full-text available
With the development of electronics and communication techniques, the interest in realizing sensor networks with a large number of end nodes is growing. The main idea is to install devices in remote locations without direct supervision, which requires an uninterrupted power supply and secure communication to the rest of the network. In this paper,...
Article
Full-text available
The requirements of low latency, low cost, less energy consumption, high flexibility, high network capacity, and high data safety are crucial challenges for future IoT wireless networks. Motivated by these challenges, this study deals with a novel design of green-cooperative IoT network, which employed coupled relays consisting of one IoT relay sel...
Article
Massive connectivity and effective spectrum usage have become more important as the use of wireless communication devices and networks has grown dramatically. The approach of non-orthogonal multiple access (NOMA) is advocated as a viable solution for meeting consumers’ current needs. The signals are overlaid with various power levels for each user...
Chapter
Users’ mobility has a huge impact on the performance of cellular networks. Acknowledge users’ multiple next locations plays an important role in various aspects which can be mentioned as helping the base stations to pre-calculate and allocate the resource to users faster and more efficiently, shortening the duration of the handover process, reducin...
Chapter
The integration of Wireless sensor networks (WSN) and Internet of Things (IoT) perform many tasks control or monitor the surrounding area or the environment. The WSN-based IoT consists of many sensor nodes connect which transmit the collecting data of the environment to the manager through the Internet. The network topology requires high reliabilit...
Article
Full-text available
In this paper, the advantages of multiple reconfigurable intelligent surfaces (RISs) assisted wireless systems and direct link between two terminals are exploited by considering a cooperative communication system where reflecting links created by multiple RISs and the direct link are combined at the receiver.We mathematically analyze the performanc...
Article
This article investigates the security and reliability analysis for a novel satellite-terrestrial network. Specifically, a satellite attempts to transmit confidential information to a ground user via the support of multiple relay nodes in the presence of an eavesdropper that tries to overhear the information. A friendly jammer is deployed to improv...
Article
Full-text available
In this work, we investigate the performance analysis of a device-to-device (D2D) communication network under an eavesdropper E attack. Besides, we assume that E is located in the proximal region where it can overhear the information from the source S. Specifically, S transmits information to the destination D, adopting the power beacon's energy to...
Article
Full-text available
In the present paper, we investigate the performance of the simultaneous wireless information and power transfer (SWIPT) based cooperative cognitive radio networks (CCRNs). In particular, the outage probability is derived in the closed-form expressions under the opportunistic partial relay selection. Different from the conventional CRNs in which th...
Preprint
Full-text available
The evolution of non-orthogonal multiple access (NOMA) has raised many opportunities for massive connectivity with less latency in signal transmissions at great distances. Power-Domain NOMA transmits user signals superimposed in the same resource block by varying the power coefficient of each user according to their channel state information (CSI)....
Article
Mobility is a key aspect of modern networking systems. To determine how to better manage available resources, many architectures aim to a priori know the future positions of mobile nodes. This can be determined, for example, from mobile sensors in a smart city environment or wearable devices carried by pedestrians. If we consider infrastructure net...
Article
Full-text available
Simultaneous wireless information and power transfer (SWIPT) and full-duplex (FD) communications have emerged as prominent technologies in overcoming the limited energy resources in Internet-of-Things (IoT) networks and improving their spectral efficiency (SE). The article investigates the outage and throughput performance for a decode-and-forward...
Chapter
This paper presents the initial research findings from the Klaipeda port quay crane monitoring activities related to the Blue economy development initiative in the Baltic Sea and demonstrates the effectiveness of the modelling of the spreader movement patterns. The use case study demonstrates the possibility to monitor the cargo handling processes...
Article
Full-text available
In this paper, we exploit the benefits of full-duplex (FD) transmission and reconfigurable intelligent surfaces (RISs) by considering a bidirectional full-duplex wireless communication system with the support of RISs. Specifically, cooperative communications are applied at two FD terminals in a RISs-assisted bidirectional full-duplex (RIS-FD) syste...
Article
Full-text available
In this paper, we propose secure relaying transmission protocols using rateless codes, where a source sends encoded packets to two intended destinations via help of intermediate relays. Employing non-orthogonal multiple access, two encoded packets can be sent to the destinations at the same time. In addition, two partial relay selection methods are...
Article
Full-text available
We investigated the outage performance of non-orthogonal multiple access (NOMA) in satellite-terrestrial systems which contain hardware impairments. An unmanned aerial vehicle (UAV) was implemented to forward signals from a satellite to users on the ground. A two-user model was applied to achieve spectral efficiency. In practical, real-life scenari...
Article
Full-text available
Reconfigurable intelligent surface (RIS)-aided communication is considered as an exciting research topic in academic and industrial communities since it provides an emerging affordable solution to achieve high quality and secure next-generation wireless systems. Especially, the deployment of RIS in multi-user wireless networks promises to reduce sy...
Article
Full-text available
In this paper, we study the physical layer security for simultaneous wireless information and power transfer (SWIPT)-based half-duplex (HD) decode-and-forward relaying system. We consider a system model including one transmitter that tries to transmit information to one receiver under the help of multiple relay users and in the presence of one eave...
Article
Full-text available
This manuscript investigates the system performance of hybrid wireless and power line communication networks for indoor Internet of Things applications. Differentiating itself from the existing literature, the performance of the direct link and dual-hop energy harvesting relay-aided links is analyzed under the condition of indoor fading modeled by...
Chapter
In this paper, the outage performance of CR-NOMA schemes in decode-and-forward (DF) relay systems Device-to-Device (D2D) with antenna selection is investigated. We propose the power beacon, which can feed energy to the relay device node to further support the transmission from the source to the destination. To this end, closed-form expressions for...
Article
Full-text available
The works in this study examine three scenarios. The scenario (I) as a common scenario with the base station (BS) and users are equipped with multiple antennae over Nakagami‐m fading channels. To improve system performance, the transmit antenna selection (TAS) and maximization of successive interference cancellation (max‐SIC) framework are deployed...
Article
Due to the development of state-of-the-art fifth-generation communication (5G) and Internet-of-Things (IoT), the demands for capacity and throughput of wireless networks have increased significantly. As a promising solution for this, a radio access technique, namely, non-orthogonal multiple access (NOMA) has been investigated. Particularly, in this...
Article
Full-text available
Full-duplex (FD) with simultaneous wireless information and power transfer (SWIPT) in wireless ad hoc networks has received increased attention as a technology for improving spectrum and energy efficiency. This paper studies the outage performance for a SWIPT-based decode-and-forward (DF) FD relaying network consisting of a single-antenna source S,...
Article
Full-text available
In this paper, the underlay cognitive radio network over mix fading environment is presented and investigated. A cooperative cognitive system with a secondary source node S, a secondary destination node D, secondary relay node Relay, and a primary node P are considered. In this model system, we consider the mix fading environment in two scenarios a...
Article
Full-text available
Smart control systems are mostly applied in industry to control the movements of heavy machinery while optimizing overall operational efficiency. Major shipping companies use large quay cranes to load and unload containers from ships and still rely on the experience of on-site operators to perform transportation control procedures using joysticks a...
Article
Full-text available
The technologies of the Internet of Things (IoT) have an increasing influence on our daily lives. The expansion of the IoT is associated with the growing number of IoT devices that are connected to the Internet. As the number of connected devices grows, the demand for speed and data volume is also greater. While most IoT network technologies use cl...
Article
Full-text available
We present the design for an ultra-low latency and low energy Internet of Things (IoT) network inspired by the emerging cooperative Non-Orthogonal Multiple Access (NOMA) wireless communication technique. The IoT network model consists of a source at the center of the network, a near device inside the network, and a far device outside the network. T...
Article
With the rapid growth of vehicles, the vehicular networks meet main challenges such as dynamic, heterogeneous, and large scaled. In addition, the cellular-based vehicular networks must satisfy further strict requirements including ultra low latency, high reliability, high spectrum efficiency and massive connections of the next generation (6G) netwo...
Article
Full-text available
In the paper, we present a study on the performance analysis of a non-orthogonal multiple access (NOMA) underlay cognitive hybrid satellite-terrestrial relaying network (CSTRN) and highlight the performance gaps between multiple users. The satellite source communicates with users by enabling cognitive radio scheme to forward signals to secondary de...
Article
Full-text available
Video quality evaluation needs a combined approach that includes subjective and objective metrics, testing, and monitoring of the network. This paper deals with the novel approach of mapping quality of service (QoS) to quality of experience (QoE) using QoE metrics to determine user satisfaction limits, and applying QoS tools to provide the minimum...
Article
In this study, we examine an emerging Multiple-Input-Multiple-Output (MIMO) Non-Orthogonal Multiple Access (NOMA) network which combines Transmit Antenna Selection (TAS) and Simultaneous Wireless Information and Power Transfer (SWIPT) protocols. A pre-coding channels matrix was designed to aid the TAS protocol. We deployed a strong user as a relay...
Article
Full-text available
One of the key enablers of future wireless communications is constituted by massive users can access the core network in wireless systems simultaneously, which can improve the spectral efficiency. In existing scheme of massive connections, namely non-orthogonal multiple access (NOMA), is investigated in conventional relaying networks. This method r...
Article
Full-text available
The article proposes a new switchable coupled relay model for massive MIMO-NOMA networks. The model equips a much greater number of antennas on the coupled relays to dramatically improve capacity and Energy Efficiency (EE). Each relay in a coupled relay is selected and delivered into a single transmission block to serve multiple devices. This paper...
Article
Full-text available
Underwater wireless sensor networks are currently seeing broad research in various applications for human benefits. Large numbers of sensor nodes are being deployed in rivers and oceans to monitor the underwater environment. In the paper, we propose an energy-efficient clustering multi-hop routing protocol (EECMR) which can balance the energy consu...
Article
This article describes the methodology and the possibilities of collecting operation data in a mobile network provider. First, the architecture and the principles used in the system are described. The precision analysis of the population commuting in the region and during the pandemic and nonpandemic times. Moreover, several ideas about further uti...