Two-phase downlink subcarrier allocation for multicell OFDMA systems
Sign Up to like & getrecommendations! Published in 2019 at "Wireless Networks"
DOI: 10.1007/s11276-018-1798-9
Abstract: To increase spectrum efficiency, the radio resource management with frequency reuse factor = 1 is usually adopted in multi-cell orthogonal frequency division multiple access systems. Such a reuse-one strategy results in severe co-channel interference, especially penalizing mobile… read more here.
Keywords: downlink; downlink subcarrier; phase downlink; mobile users ... See more keywords
An approximate-computing empowered green 6G downlink
Sign Up to like & getrecommendations! Published in 2021 at "Physical Communication"
DOI: 10.1016/j.phycom.2021.101444
Abstract: Abstract Approximate computing (AC) is an emerging embedded computing paradigm whereby accurate arithmetic units (i.e., adders and multipliers) of a computing platform (e.g., CPU, FPGA, ASIC etc.) are replaced by their inexact counterparts. For the… read more here.
Keywords: approximate; empowered green; computing empowered; downlink ... See more keywords
Optimizing FBS 3D positions for sum rate maximization in downlink NOMA 6G network
Sign Up to like & getrecommendations! Published in 2025 at "Scientific Reports"
DOI: 10.1038/s41598-025-22735-3
Abstract: The explosive growth of internet of everything (IoE) devices and the increasing demand for ultra-reliable, high-capacity wireless connectivity pose significant challenges to next-generation networks. Flying base stations (FBSs) make a significant contribution to the physical… read more here.
Keywords: fbs; noma; ioe devices; downlink ... See more keywords
Queue-Aware Opportunistic Interference Alignment in Downlink MU-MIMO Cellular Systems
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Access"
DOI: 10.1109/access.2018.2869693
Abstract: Recently, attention has been paid to the integration of opportunistic communications, whether based on opportunistic user selection (OUS) or opportunistic antenna selection, with interference alignment (IA) in order to improve the performance of wireless networks.… read more here.
Keywords: queue aware; downlink; interference alignment; interference ... See more keywords
Spectral Efficiency Maximization of a Single Cell Massive MU-MIMO Down-Link TDD System by Appropriate Resource Allocation
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Access"
DOI: 10.1109/access.2019.2959711
Abstract: This paper deals with the problem of maximizing the spectral efficiency in a massive multi-user MIMO downlink system, where a base station is equipped with a very large number of antennas and serves single-antenna users… read more here.
Keywords: system; downlink; resource allocation; efficiency ... See more keywords
Downlink Performance Analysis in MIMO UAV-Cellular Communication with LOS/NLOS Propagation Under 3D beamforming
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3142529
Abstract: Integrating unmanned aerial vehicles (UAVs) as the base station is recent progress and a promising solution to assist cellular networks and improve coverage. In this paper, an analytical framework is proposed to analyze coverage and… read more here.
Keywords: mimo uav; downlink performance; analysis mimo; performance analysis ... See more keywords
On the Cost of Achieving Downlink Ultra-Reliable Low-Latency Communications in 5G Networks
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3158361
Abstract: We determine the cost of serving Ultra-Reliable Low-Latency Communications (URLLC) traffic (1 ms one-way latency, 99.999% reliability) in 5G New Radio (NR) Macro cellular networks. The cost is measured as the degradation of the enhanced… read more here.
Keywords: reliable low; ultra reliable; latency; low latency ... See more keywords
On the Energy Efficiency Maximization of NOMA-aided Downlink Networks with Dynamic User Pairing
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3162875
Abstract: This study investigates a combined system comprising non-orthogonal multiple access (NOMA) and beamforming in a downlink network. To fully exploit the advantages of NOMA, user (UE) pairing and beamforming design are jointly optimized via a… read more here.
Keywords: user pairing; efficiency maximization; noma; energy efficiency ... See more keywords
5G New Radio Physical Downlink Control Channel Reliability Enhancements for Multiple Transmission-Reception-Point Communications
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3206027
Abstract: Non-coherent transmission from multiple transmission-reception-points (TRPs), i.e., base stations, or base station panels to a user equipment (UE) is exploited in 5G New Radio (NR) to improve downlink reliability and cell-edge throughput. Ultra reliable low-latency… read more here.
Keywords: transmission reception; transmission; multiple transmission; reliability ... See more keywords
SLINR-Based Downlink Optimization in MU-MIMO Networks
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3224197
Abstract: Optimizing the downlink of multi-cell multiuser multiple input multiple output (MU-MIMO) networks has received substantial attention; however, the schemes in the literature consider centralized solutions requiring significant overhead in information exchange (e.g., global channel state… read more here.
Keywords: optimization mimo; mimo networks; slinr based; downlink optimization ... See more keywords
Investigations on Secrecy Performance of Downlink Overlay CR-NOMA System With SIC Imperfections
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Access"
DOI: 10.1109/access.2024.3361038
Abstract: Cognitive radio (CR) and non-orthogonal multiple access (NOMA) are two technologies witnessed to offer tremendous possibilities for the next generation wireless networks to maximise their usage of available spectrum. In this work, we evaluate the… read more here.
Keywords: performance; noma system; downlink; secrecy performance ... See more keywords