62 citations · 129 across the 19 of their papers we have counts for
15 papers · 1 filter
The Price of the Golden 6G Band: Evaluation of Beam Management Effort in FR3
Clémence Altmeyerhenzien, Ljiljana Simić, Marina Petrova
Frequency Range 3 (FR3), 7.125-24.25 GHz, regarded as the "golden band" for 6G networks, has less challenging propagation characteristics than FR2 while offering much wider bandwid…
Performance of Cell-Free Massive MIMO in Realistic Urban Propagation Environments
Yunlu Xiao, Ljiljana Simić
While UE-centric cell-free massive MIMO (CF-mMIMO) provides high and uniform throughput performance under the assumption of a uniform propagation environment modeled by the log-dis…
Cell-Free Massive MIMO Under Mobility: A Fairness-Differentiated Handover Scheme
Yunlu Xiao, Marina Petrova, Ljiljana Simić
While cell-free massive MIMO (CF-mMIMO) offers high and uniform network-wide throughput in static networks, its performance in mobile networks is not yet fully addressed. In this p…
HBF MU-MIMO with Interference-Aware Beam Pair Link Allocation for Beyond-5G mm-Wave Networks
Aleksandar Ichkov, Alexander Wietfeld, Marina Petrova +1
Hybrid beamforming (HBF) multi-user multiple-input multiple-output (MU-MIMO) is a key technology for unlocking the directional millimeter-wave (mm-wave) nature for spatial multiple…
Will Emerging Millimeter-Wave Cellular Networks Cause Harmful Interference to Weather Satellites?
Andreea Palade, Andra M. Voicu, Petri Mähönen +1
We study whether realistic 5G mm-wave cellular networks would cause harmful out-of-band interference to weather satellites sensing in the 23.8 GHz band. We estimate uplink and down…
Limitations of Stochastic Geometry Modelling for Estimating the Performance of CSMA Networks
Andra M. Voicu, Ljiljana Simić, Marina Petrova
This letter considers stochastic geometry modelling (SGM) for estimating the signal-to-interference-and-noise ratio (SINR) and throughput of CSMA networks. We show that, despite it…
Multi-User Provisioning in Millimeter-Wave Urban Cellular Networks
Aleksandar Ichkov, Daniel Sialkowski, Petri Mähönen +1
In this paper we present the first comprehensive study of the multi-user capacity of millimeter-wave (mm-wave) urban cellular networks, using site-specific ray-tracing propagation…
Should We Worry About Interference in Emerging Dense NGSO Satellite Constellations?
Christophe Braun, Andra M. Voicu, Ljiljana Simić +1
Many satellite operators are planning to deploy NGSO systems for broadband communication services in the Ku-, Ka-, and V-band, where some of them have already launched. Consequentl…
Performance of Radar and Communication Networks Coexisting in Shared Spectrum Bands
Andrea Munari, Nina Grosheva, Ljiljana Simić +1
Recent technological advancements are making the use of compact, low-cost, low-power mm-wave radars viable for providing environmental awareness in a number of applications, rangin…
Stochastic Geometry Interference Analysis of Radar Network Performance
Andrea Munari, Ljiljana Simić, Marina Petrova
This work characterises the effect of mutual interference in a planar network of pulsed-radar devices. Using stochastic geometry tools and a strongest interferer approximation, we…
Survey of Spectrum Sharing for Inter-Technology Coexistence
Andra M. Voicu, Ljiljana Simić, Marina Petrova
Increasing capacity demands in emerging wireless technologies are expected to be met by network densification and spectrum bands open to multiple technologies. These will, in turn,…
Risk-Informed Interference Assessment for Shared Spectrum Bands: A Wi-Fi/LTE Coexistence Case Study
Andra M. Voicu, Ljiljana Simić, J. Pierre de Vries +2
Interference evaluation is crucial when deciding whether and how wireless technologies should operate. In this paper we demonstrate the benefit of risk-informed interference assess…
LTE in Unlicensed Bands is neither Friend nor Foe to Wi-Fi
Ljiljana Simić, Andra M. Voicu, Petri Mähönen +2
Proponents of deploying LTE in the 5 GHz band for providing additional cellular network capacity have claimed that LTE would be a better neighbour to Wi-Fi in the unlicensed band,…
Inter-Technology Coexistence in a Spectrum Commons: A Case Study of Wi-Fi and LTE in the 5 GHz Unlicensed Band
Andra M. Voicu, Ljiljana Simić, Marina Petrova
Spectrum sharing mechanisms need to be carefully designed to enable inter-technology coexistence in the unlicensed bands, as these bands are an instance of a spectrum commons where…
60 GHz Outdoor Urban Measurement Study of the Feasibility of Multi-Gbps mm-Wave Cellular Networks
Ljiljana Simić, Nikos Perpinias, Marina Petrova
Future 5G cellular networks are expected to exploit the abundant spectrum resources of the millimeter-wave (mm-wave) bands to satisfy demand for multi-Gbps mobile links anticipated…