1.1k citations · 2.1k across the 49 of their papers we have counts for
48 papers · 1 filter
Random Spherical Codes at High SNR: Error Transitions, Fixed-Error Data Rates, and Converse Gaps
Nikola Zlatanov
This paper characterizes random spherical codebooks over the real additive white Gaussian noise channel in the high signal-to-noise ratio (SNR) regime in which the blocklength is f…
Parametric Channel Estimation for LoS Dominated Holographic Massive MIMO Systems
Mojtaba Ghermezcheshmeh, Vahid Jamali, Haris Gacanin +1
Holographic massive multiple-input multiple-output (MIMO), in which a spatially continuous surface is being used for signal transmission and reception, have emerged as a promising…
Designing Wireless Powered Networks assisted by Intelligent Reflecting Surfaces with Mechanical Tilt
Zoran Hadzi-Velkov, Slavche Pejoski, Nikola Zlatanov +1
In this paper, we propose a fairness-aware rate maximization scheme for a wireless powered communications network (WPCN) assisted by an intelligent reflecting surface (IRS). The pr…
Performance Comparison Between A Simple Full-Duplex Multi-Antenna Relay And A Passive Reflecting Intelligent Surface
Armin Bazrafkan, Marija Poposka, Zoran Hadzi-Velkov +2
In this paper, we propose to investigate a single RF chain multi-antenna full-duplex (FD) relay built with -bit analog phase shifters and passive self-interference cancellation.…
Optimal Detection Interval for Absorbing Receivers in Molecular Communication Systems with Interference
Trang Ngoc Cao, Nikola Zlatanov, Phee Lep Yeoh +1
We consider a molecular communication system comprised of a transmitter, an absorbing receiver, and an interference source. Assuming amplitude modulation, we analyze the dependence…
Fractionally-Spaced Equalization and Decision Feedback Sequence Detection for Diffusive MC
Trang Ngoc Cao, Vahid Jamali, Nikola Zlatanov +3
In this paper, we consider diffusive molecular communication (MC) systems affected by signal-dependent diffusive noise, inter-symbol interference, and external noise. We design lin…
Deep Reinforcement Learning-Aided Random Access
Ivana Nikoloska, Nikola Zlatanov
We consider a system model comprised of an access point (AP) and K Internet of Things (IoT) nodes that sporadically become active in order to send data to the AP. The AP is assumed…
Optimal Centralized Dynamic-Time-Division-Duplex
Mohsen Mohammadkhani Razlighi, Nikola Zlatanov, Shiva Raj Pokhrel +1
In this paper, we derive the optimal centralized dynamic-time-division-duplex (D-TDD) scheme for a wireless network comprised of full-duplex nodes impaired by self-interference…
On the Capacity of Massive MIMO With 1-Bit ADCs and DACs at the Receiver and at the Transmitter
Armin Bazrafkan, Nikola Zlatanov
In this paper, we investigate the capacity of massive multiple-input multiple-output (MIMO) systems corrupted by complex-valued additive white Gaussian noise (AWGN) when both the t…
Chemical Reactions-based Detection Mechanism for Molecular Communications
Trang Ngoc Cao, Vahid Jamali, Wayan Wicke +4
In molecular communications, the direct detection of signaling molecules may be challenging due to a lack of suitable sensors and interference in the environment. Motivated by rese…
Dynamic Time-Frequency Division Duplex
Mohsen Mohammadkhani Razlighi, Nikola Zlatanov, Petar Popovski
In this paper, we introduce dynamic time-frequency-division duplex (D-TFDD), which is a novel duplexing scheme that combines time-division duplex (TDD) and frequency-division duple…
Proportional Fairness in ALOHA Networks with RF Energy Harvesting
Zoran Hadzi-Velkov, Slavche Pejoski, Nikola Zlatanov +1
In this paper, we study wireless powered communication networks that employ the slotted ALOHA protocol, which is the preferred protocol for simple and uncoordinated networks. In th…
On the Secrecy Capacity of a Full-Duplex Wirelessly Powered Communication System
Ivana Nikoloska, Nikola Zlatanov, Zoran Hadzi-Velkov +1
In this paper, we investigate the secrecy capacity of a point-to-point, full-duplex (FD) wirelesly powered communication system in the presence of a passive eavesdropper (EVE). The…
Capacity of a Full-Duplex Wirelessly Powered Communication System with Self-Interference and Processing Cost
Ivana Nikoloska, Nikola Zlatanov, Zoran Hadzi-Velkov
In this paper, we investigate the capacity of a point-to-point, full-duplex (FD), wirelessly powered communication system impaired by self-interference. This system is comprised of…
Secure SWIPT Networks Based on a Non-linear Energy Harvesting Model
Elena Boshkovska, Nikola Zlatanov, Linglong Dai +2
We optimize resource allocation to enable communication security in simultaneous wireless information and power transfer (SWIPT) for internet-of-things (IoT) networks. The resource…
Half-Duplex Base Station with Adaptive Scheduling of the in-Band Uplink-Receptions and Downlink-Transmissions
Mohsen Mohammadkhani Razlighi, Nikola Zlatanov
In this paper, we propose a novel reception/transmission scheme for half-duplex base stations (BSs). In particular, we propose a half-duplex BS that employes in-band uplink-recepti…
Buffer-Aided Relaying For The Two-Hop Full-Duplex Relay Channel With Self-Interference
Mohsen Mohammadkhani Razlighi, Nikola Zlatanov
In this paper, we investigate the two-hop full-duplex (FD) relay channel with self-interference and fading, which is comprised of a source, an FD relay, and a destination, where a…
Capacity of the Two-Hop Relay Channel with Wireless Energy Transfer from Relay to Source and Energy Transmission Cost
Nikola Zlatanov, Derrick Wing Kwan Ng, Robert Schober
In this paper, we investigate a communication system comprised of an energy harvesting (EH) source which harvests radio frequency (RF) energy from an out-of-band full-duplex relay…
Robust Resource Allocation for MIMO Wireless Powered Communication Networks Based on a Non-linear EH Model
Elena Boshkovska, Derrick Wing Kwan Ng, Nikola Zlatanov +2
In this paper, we consider a multiple-input multiple-output wireless powered communication network (MIMO-WPCN), where multiple users harvest energy from a dedicated power station i…
Cooperative Wireless Backhauling
Vahid Jamali, Nikola Zlatanov, Robert Schober
We consider wireless backhauling for a scenario where two small-cell base stations (SC-BSs) employ the same time and frequency resources for offloading their data to a common macro…
Robust Resource Allocation for Full-Duplex Cognitive Radio Systems
Yan Sun, Derrick Wing Kwan Ng, Nikola Zlatanov +1
In this paper, we investigate resource allocation algorithm design for full-duplex (FD) cognitive radio systems. The secondary network employs a FD base station for serving multipl…
Robust Beamforming for SWIPT Systems with Non-linear Energy Harvesting Model
Elena Boshkovska, Alexander Koelpin, Derrick Wing Kwan Ng +2
This paper investigates resource allocation for simultaneous wireless information and power transfer (SWIPT) downlink systems based on a non-linear energy harvesting model. The res…
Rate Maximization of Decode-and-Forward Relaying Systems with RF Energy Harvesting
Zoran Hadzi-Velkov, Nikola Zlatanov, Trung Q. Duong +1
We consider a three-node decode-and-forward (DF) half-duplex relaying system, where the source first harvests RF energy from the relay, and then uses this energy to transmit inform…
On the Capacity of the Two-Hop Half-Duplex Relay Channel
Nikola Zlatanov, Vahid Jamali, Robert Schober
Although extensively investigated, the capacity of the two-hop half-duplex (HD) relay channel is not fully understood. In particular, a capacity expression which can be evaluated s…