Category: Conference Paper

  • IEEE ICMCIS: How do you localize simultaneously dozens of 5G users with a few element passive array in a multipath-rich indoor environment?

    IEEE ICMCIS: How do you localize simultaneously dozens of 5G users with a few element passive array in a multipath-rich indoor environment?

    Our research investigates a filter-bank framework combined with a sparse-subspace method for Direction- of-Arrival (DoA) estimation in 5G indoor localization. We propose Filter-Bank Signal Subspace Orthogonal Matching Pursuit (FB-SS-OMP), a method tailored to DFT-s-OFDM, the uplink technique employed in multi-user 5G networks. Using ray-tracing simulations in a virtual indoor environment and composed of multiple transmitters.…

  • IEEE MILCOM: Implementation of Multi-Access Connectivity over 5G and Tactical Networks on COTS Smartphones

    Multi-Access (MA) connectivity is a native 5Gfeature that enables a User Equipment (UE) to simultaneouslyaccess the 5G Core (5GC) through multiple heterogeneousaccess networks. For military applications, this capability canimprove resilience to communication disruption and eavesdropping by leveraging additional access networks such as tacticalradios. This paper presents, to the best of our knowledge,the first open-source standard-compliant…

  • IEEE ICMCIS: Seamless Integration of Tactical Radios into Multi-Access 5G Systems

    The 3rd Generation Partnership Project (3GPP)Release 15 introduced 5G technology, offering significant operational advantages for military communications. However, itsradio access technology, 5G New Radio (NR), remains vulnerableto a range of threats. The Multi-Access (MA) connectivity featureenables 5G services over both 5G NR and non-3GPP accessnetworks. In Release 16, MA connectivity is enhanced throughAccess Traffic Steering,…

  • IEEE MILCOM: Soft Hopset Learning for Coexistence of Uncoordinated FHSS Communication Networks

    IEEE MILCOM: Soft Hopset Learning for Coexistence of Uncoordinated FHSS Communication Networks

    This paper investigates the decentralized coexistence of Frequency Hopping Spread Spectrum (FHSS) networks operating in contested environments where coordination, synchronization, and explicit ACKs are unavailable. Under these constraints, nodes rely solely on local and ambiguous binary observations, and collisions result in irreversible packet loss. We propose a lightweight distributed learning mechanism based on soft hopsets,…

  • IEEE MILCOM: Digital Cancellation of Self and Co-Site Interference for Full-Duplex NATO Narrowband Waveform

    IEEE MILCOM: Digital Cancellation of Self and Co-Site Interference for Full-Duplex NATO Narrowband Waveform

    Full-duplex communication enables simultaneous transmission and reception on the same frequency channel, though its performance is severely constrained by self and co-site interference. This issue is particularly critical in tactical narrowband systems, such as those employing the NATO Narrowband Waveform (NBWF). This paper investigates digital self- and co-site interference cancellation techniques for NATO NBWF full-duplex…

  • An Enhanced End-to-End Framework for Drone RF Signal Classification

    Smart RF jamming relies on long-term spectrum prediction, which requires accurate, high-resolution RF detection and classification over extended observation periods. Detecting and classifying drone RF signals is particularly challenging due to short dwell times, high hopping rates, and narrow instantaneous bandwidths. This paper presents an enhanced end-to-end framework designed to meet these requirements for smart…

  • UAVs as Relay Nodes: Positioning Method for Heterogeneous Wireless Networks

    UAVs as Relay Nodes: Positioning Method for Heterogeneous Wireless Networks

    In scenarios where Relay Nodes (RNs) need to be deployed to restore the connectivity of a partitioned wireless network, a positioning method limiting the number of RNs required is necessary. Optimally, the method must take into account the differences of transmission ranges between the different nodes – or the heterogeneity in range of the network.…

  • Distributed Cooperative Jamming with Multi-Reference Known-Interference Cancellation

    Distributed Cooperative Jamming with Multi-Reference Known-Interference Cancellation

    Secure and reliable tactical communications within allied defense forces across a battlefield are often fundamental for achieving the forces’ operational targets against an adversary. Likewise, limiting the adversary’s capability to communicate securely and reliably promotes the host forces’ chances for operational success. As such, armed conflicts typically involve an underlying battle in the electromagnetic (EM)…

  • Assessment of the Antenna Mounting Location on a Military Vehicle for Jamming Applications Based on Computational Electromagnetics

    Assessment of the Antenna Mounting Location on a Military Vehicle for Jamming Applications Based on Computational Electromagnetics

    The placement of an antenna on the roof of a military vehicle-mounted jamming system presents many challenges. For that, further approaches are needed to study the effectiveness of placing antennas on these vehicles. Besides, due to the cost, time, and technical difficulties in measuring the suitable antenna locations on large tactical vehicles, there is a…