Search Results for author: Marina Petrova

Found 15 papers, 1 papers with code

Unknown Interference Modeling for Rate Adaptation in Cell-Free Massive MIMO Networks

no code implementations18 Apr 2024 Mahmoud Zaher, Emil Björnson, Marina Petrova

Co-channel interference poses a challenge in any wireless communication network where the time-frequency resources are reused over different geographical areas.

Scheduling

Power Allocation Scheme for Device-Free Localization in 6G ISAC Networks

no code implementations16 Feb 2024 Maximiliano Rivera Figueroa, Pradyumna Kumar Bishoyi, Marina Petrova

Integrated Sensing and Communication (ISAC) is considered one of the crucial technologies in the upcoming sixth-generation (6G) mobile communication systems that could facilitate ultra-precise positioning of passive and active targets and extremely high data rates through spectrum coexistence and hardware sharing.

Cooperative Multi-Monostatic Sensing for Object Localization in 6G Networks

no code implementations24 Nov 2023 Maximiliano Rivera Figueroa, Pradyumna Kumar Bishoyi, Marina Petrova

Enabling passive sensing of the environment using cellular base stations (BSs) will be one of the disruptive features of the sixth-generation (6G) networks.

Object Localization

Modeling and Performance Analysis of CSMA-Based JCAS Networks

no code implementations23 Oct 2023 Navid Keshtiarast, Pradyumna Kumar Bishoyi, Marina Petrova

When sensing and communication share the same spectrum, the communication links in the JCAS networks experience interference from both sensing and communication signals.

Communication-Efficient Orchestrations for URLLC Service via Hierarchical Reinforcement Learning

no code implementations25 Jul 2023 Wei Shi, Milad Ganjalizadeh, Hossein Shokri Ghadikolaei, Marina Petrova

However, with conventional RL methods, the decision variables (though being deployed at various network layers) are typically optimized in the same control loop, leading to significant practical limitations on the control loop's delay as well as excessive signaling and energy consumption.

Hierarchical Reinforcement Learning reinforcement-learning +1

A Bayesian Approach to Characterize Unknown Interference Power in Wireless Networks

no code implementations12 May 2023 Mahmoud Zaher, Emil Björnson, Marina Petrova

The existence of unknown interference is a prevalent problem in wireless communication networks.

Scheduling

Device Selection for the Coexistence of URLLC and Distributed Learning Services

no code implementations22 Dec 2022 Milad Ganjalizadeh, Hossein Shokri Ghadikolaei, Deniz Gündüz, Marina Petrova

Our simulation results confirm that our solution can significantly decrease the training delay of the distributed AI service while keeping the URLLC availability above its required threshold and close to the scenario where URLLC solely consumes all network resources.

Soft Handover Procedures in mmWave Cell-Free Massive MIMO Networks

no code implementations6 Sep 2022 Mahmoud Zaher, Emil Björnson, Marina Petrova

The algorithms provide a systematic procedure for initial access and update of the serving APs and assigned pilot sequence to each UE.

Location-Aided Beamforming in Mobile Millimeter-Wave Networks

no code implementations19 May 2022 Sara Khosravi, Hossein S. Ghadikolaeiy, Jens Zander, Marina Petrova

Nevertheless, the need for beamforming and directional communication between the transmitter and the receiver increases the complexity of the channel estimation and link establishment phase.

Learning-Based Downlink Power Allocation in Cell-Free Massive MIMO Systems

1 code implementation7 Sep 2021 Mahmoud Zaher, Özlem Tuğfe Demir, Emil Björnson, Marina Petrova

Further, we develop a clustered DNN model where the LSF parameters of a small number of APs, forming a cluster within a relatively large network, are used to jointly approximate the power coefficients of the cluster.

Fairness

Learning-based Load Balancing Handover in Mobile Millimeter Wave Networks

no code implementations3 Nov 2020 Sara Khosravi, Hossein S. Ghadikolaei, Marina Petrova

Millimeter-wave (mmWave) communication is a promising solution to the high data rate demands in the upcoming 5G and beyond communication networks.

Management

Learning-based Handover in Mobile Millimeter-wave Networks

no code implementations24 Mar 2020 Sara Khosravi, Hossein S. Ghadikolaei, Marina Petrova

We show that our method provides high rate and reliability in all locations of the user's trajectory with a minimal number of handovers.

Efficient Beamforming for Mobile mmWave Networks

no code implementations23 Dec 2019 Sara Khosravi, Hossein S. Ghadikolaei, Marina Petrova

We design a lightweight beam-searching algorithm for mobile millimeter-wave systems.

Channel Selection Algorithm for Cognitive Radio Networks with Heavy-Tailed Idle Times

no code implementations15 Jul 2016 S. Senthilmurugan, Junaid Ansari, Petri Mähönen, T. G. Venkatesh, Marina Petrova

We implement our proposed CSA framework in a wireless test-bed and comprehensively evaluate its performance by recreating the realistic PU channel occupancy patterns.

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