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ТЕ / TEI 1

Детаљи сесије / Session details

ТЕ / TEI 1

08.06.2026. 15:00–17:15
Сала / Room: Сала 2 / Hall 2Секција / Трацк / Section / Track: TE
Председавајући / ChairДејан Драјић
Институција / InstitutionУниверзитет у Београду - Електротехнички факултет, Београд, Србија
  1. TEI1.1
    GenAI Agent for Network Design and Maintenance: N-Relay Cooperative Systems over Rayleigh Fading with Selection Combining Case Study
    Vuk Vujovic, Suad Suljović, Dejan N. Milic, Nenad Petrović, Milan Jović and Goran Đorđević
    ID: 1760Секција / Track: TERPIEEE Xplore
    Кључне речи / Keywords: agentic AI, Outage probability, Rayleigh fading, GenAI
    Апстракт / Abstract
    This paper analyzes a relay communication system with a
    single source, N relays, and a direct source–destination
    link under Rayleigh fading conditions. Amplify-and-Forward
    (AF) relaying and Selection Combining (SC) at the receiver
    are employed, while the system outage probability (Pout) is
    evaluated via statistical analysis of the instantaneous
    signal-to-noise ratio (SNR). The results indicate that the
    receiver sensitivity threshold (γth) has a dominant effect
    on system performance, whereas the relay transmit power has
    a smaller impact. Additionally, the study explores the use
    of locally deployable Generative Artificial Intelligence
    (GenAI) for agentic, automated network design and
    management, showing reduced execution time and effort while
    maintaining accuracy, highlighting its potential for
    efficient 5G/6G network optimization. On the other side,
    adoption of agentic memory and Model Context Protocol (MCP)
    with locally deployable model results with outcomes
    comparable to commercial, externally managed GenAI services.
  2. TEI1.2
    LLM-Driven Network Management Reliability: LCR Analysis of SC Receivers under Weibull Fading and Co-Channel Interference Case Study
    Nenad Petrović, Milos Popovic, Suad Suljović, Sinisa Minic, Jovan Vujic and Radisa Stefanovic
    ID: 2537Секција / Track: TERPIEEE Xplore
    Кључне речи / Keywords: LCR, SC diversity, Weibull fading, Large Language Model (LLM)
    Апстракт / Abstract
    This paper investigates a wireless communication system
    employing an L-branch selection combiner (SC), where the
    input signals are subject to Weibull fading, and co-channel
    interference (CCI) is also considered, modeled using the
    Weibull distribution. To mitigate the effects of fading and
    interference, SC is applied as a simple yet effective
    diversity technique. In the first part of the paper, a
    closed-form expression for the level crossing rate (LCR) of
    the signal-to-interference ratio (SIR) is derived,
    providing analytical insight into the system dynamics.
    Numerical results demonstrate how the fading and
    interference parameters influence the LCR. In the second
    part, we show how the obtained values can be further
    utilized in an LLM-driven approach for network management,
    enabling evaluation of functional safety aspects and
    performance optimization of the network configuration.
  3. TEI1.3
    Statistical Analysis of Optimal Factorization in Multistage Decimation Structure
    Vukasin Babic and Djordje Babic
    ID: 2919Секција / Track: TERPIEEE Xplore
    Кључне речи / Keywords: Digital filters, Multirate filtering, FIR filter design, Farrow filter
    Апстракт / Abstract
    In this paper, we examine the behavior of the optimal
    factorization framework for multistage decimation
    introduced in our earlier work. The objective is not to
    modify the optimization procedure, but to clarify how the
    optimal realizations are distributed across the
    decimation-ratio range and how sensitive the achieved gains
    are to the filter specifications. Using a computation rate
    model based on multiplications per second, we compare
    globally optimal realizations based on the transposed
    modified Farrow structure (TMFS) followed by FIR stages
    with the corresponding FIR-only cascades. The results show
    a clear separation between prime and composite ratios and
    confirm that the optimal structures remain shallow across
    the considered range. A sensitivity analysis further
    indicates that the passband edge has the strongest
    influence on the achievable gain. These results complement
    the earlier algorithmic contribution and provide practical
    guidance on when the generalized TMFS–FIR architecture is
    the most beneficial.
  4. TEI1.4
    A Message-Oriented Intra-Node Control Architecture for Modular OTN Nodes
    Stefan Šuka, Miloš Stojadinović, Dejan Drajić, Mladen Sokić, Luka Mladenović and Zoran Čiča
    ID: 3497Секција / Track: TERPIEEE Xplore
    Кључне речи / Keywords: Optical Transport Network (OTN), intra-node control-plane communication, Central Management Unit (CMU), ZeroMQ-based messaging, modular OTN architecture, industrial implementation
    Апстракт / Abstract
    This paper presents the design and implementation of an
    intra-node control communication framework for modular
    Optical Transport Network (OTN) systems. The proposed
    architecture coordinates a Central Management Unit (CMU)
    and distributed line card applications within an industrial
    OTN platform. Communication is realized through a
    lightweight message-oriented layer based on ZeroMQ,
    combining Request–Reply transactions for deterministic
    configuration handling and Publisher–Subscriber signaling
    for asynchronous status exchange. JSON is used for
    structured and extensible message representation, while
    systemd provides supervised service lifecycle management
    and fault isolation. The framework has been implemented and
    validated on an OTN node platform developed by Iritel.
  5. TEI1.5
    Secure Communication Architecture of IoT Systems Integrated with Blockchain Technology
    Aleksa Stoimenov, Aleksandar Katić, Zoran Čiča and Dejan Drajić
    ID: 9694Секција / Track: TERPIEEE Xplore
    Кључне речи / Keywords: Blockchain, IoT, wireless sensor networks, security, distributed communication, decentralization
    Апстракт / Abstract
    With rapid expansion of IoT applications, ensuring adequate
    security for IoT systems has become increasingly
    challenging. Blockchain technology has proven to be very
    effective at protecting data integrity and has been
    researched as a promising addition to network security,
    across various industries. It is characterized by a
    transparent and immutable nature, while relying on
    decentralized and distributed networks, as well as
    cryptographic mechanisms to achieve a high level of
    security. This paper proposes a network architecture that
    utilizes Blockchain technology, along with a voting system
    and a consensus model based on random role assignment, to
    establish a secure environment for a typical IoT topology.
    By leveraging decentralized storage of security records,
    the proposed approach eliminates single points of failure,
    while enabling faster and more seamless device
    authentication.
  6. TEI1.6
    Development Platform for Programming Ethernet Chip on the Optical Transport Network Unit
    Miloš Stojadinović, Zoran Čiča, Dejan Drajić, Stefan Šuka, Mladen Sokić and Luka Mladenović
    ID: 2878Секција / Track: TERPProceedings
    Кључне речи / Keywords: Optical Transport Networks, Ethernet, System on Chip
    Апстракт / Abstract
    In modern optical transport networks, new requirements
    arise that need to be met with appropriate equipment. The
    paper presents new solutions in the architecture of Optical
    Transport Network units with a focus on the central control
    system and communication with the Ethernet chip. In order
    to implement the aforementioned communication, it is
    necessary to perform a successful hardware connection,
    adapt the configurable logic and ensure the entire
    communication chain between the user space of the operating
    system and the hardware. In addition to demonstrating the
    verification of the functionality of the implemented
    interface, technical details about the development platform
    and the applied technologies are also presented.
  7. TEI1.7
    APB to MDIO bridge implemented on Microchip Polarfire SoC
    Mladen Sokic, Stefan Suka, Jelena Popovic Bozovic, Lazar Saranovac, Milos Stojadinovic and Luka Mladenovic
    ID: 7186Секција / Track: TERPProceedings
    Кључне речи / Keywords: FPGA, APB, MDIO, RISC-V, Optical transciever
    Апстракт / Abstract
    This paper presents the design of an MDIO controller
    implemented on Microchip Polarfire SoC platform. The
    proposed controller is integrated in Icicle open source
    project that contains RISC-V processor with different types
    of peripherals. The proposed peripheral is APB slave to the
    processosor and uses MDIO 45 clause interface to
    communicate with CFP2 optical transciever. Operating system
    that is used in Linux Ubuntu and there is a driver that is
    written in Iritel that drives the peripheral. The
    implementation and the results of the custom solution will
    be presented in the following text with the comparison to
    the Microchip core component from the catalog (MDIO_APB),
    also integrated in Icicle project.
  8. TE1.1
    Praćenje kvaliteta vazduha u zatvorenom prostoru primenom niskobudžetnih senzora i interneta stvari
    Katarina Garić, Dejan Drajić, Zoran Čiča and Ivan Vajs
    ID: 1130Секција / Track: TERPZbornik
    Кључне речи / Keywords: kvalitet vazduha u zatvorenom, IoT, niskobudžetni senzori, PM monitoring, VOC monitoring
    Апстракт / Abstract
    Kvalitet vazduha u zatvorenom prostoru predstavlja značajan
    faktor rizika po zdravlje, jer ljudi provode najveći deo
    svog vremena u zatvorenim prostorima poput stanova, škola,
    radnih mesta i kancelarija. U ovom radu prikazan je
    praktičan pristup za kontinuirano praćenje parametara
    kvaliteta vazduha u zatvorenom, koristeći prenosivi uređaj
    sa niskobudžetnim senzorima i IoT tehnologijom za
    prikupljanje i analizu podataka. Merenja obuhvataju
    koncentracije suspendovanih čestica (PM1, PM2.5, PM10),
    isparljiva organska jedinjenja (VOC), temperaturu, pritisak
    i relativnu vlažnost vazduha. Podaci su prikupljani u
    različitim tipičnim okruženjima (stambeni prostori, sala za
    trening, kupatilo) kako bi se uočile promene usled
    uobičajenih aktivnosti. Rezultati pokazuju da izlaganje
    duvanskom dimu, upotreba aerosola i nedovoljna ventilacija
    dovode do osetnog porasta PM i VOC indikatora, dok
    provetravanje uglavnom smanjuje VOC i stabilizuje PM
    vrednosti. Ostvareni rezultati postavljaju okvire za buduća
    istraživanja sa ciljem da se pravovremeno prepozna
    nepovoljan kvalitet vazduha u zatvorenom prostoru, razviju
    smernice za frekventnost i trajanje provetravanja i
    edukaciju korisnika o uticaju svakodnevnih aktivnosti na
    kvalitet vazduha.
  9. TE1.2
    Adaptivni EKF za procenu vazdušnih parametara pri degradaciji kvalitetamerenja pito-statičnog sistema
    Vlada Sokolovic and Goran Markovic
    ID: 9118Секција / Track: TERPZbornik
    Кључне речи / Keywords: Adaptivni prošireni Kalmanov filter, vazdušni parametri, pito-statički sistem, pouzdana procena stanja.
    Апстракт / Abstract
    U radu je predstavljeno modelovanje i simulacija MEMS
    (Micro-Electro-Mechanical Systems) pito-statičkog sistema
    za estimaciju vazdušnih parametara u uslovima degradiranih
    merenja. Analiziran je uticaj šuma, bias drifta, dinamičkih
    efekata i zaleđivanja Pito cevi. Za estimaciju stanja
    primenjen je prošireni Kalmanov filter (EKF, Extended
    Kalman filter), uz adaptivni pristup zasnovan naNormalized
    Innovation Squared (NIS) kriterijumu za detekciju anomalija
    i za prilagođavanje matrice šuma merenja. Rezultati
    simulacije pokazuju da primena EKF daje dobre rezultate u
    nominalnim uslovima, dok primenu adaptivnog EKF odlikuje
    značajno smanjivanje greške procene u prisustvu poremećaja,
    posebno za merenje brzine. Predloženi pristup unapređuje
    pouzdanost sistema za obradu vazdušnih podataka u realnim
    uslovima eksploatacije.