Results 51 to 60 of about 141,071 (164)

A Multiagent Deep Reinforcement Learning Scheme for Energy Use Optimization in UAV‐Enabled Wireless Networks With Reconfigurable Intelligent Surfaces

International Journal of Intelligent Systems, Volume 2026, Issue 1, 2026.
This work introduces a multiagent deep reinforcement learning (MADRL) framework for energy harvesting (EH) in unmanned aerial vehicle (UAV) networks aided by reconfigurable intelligent surfaces (RIS). The core goal is to maximize quantities of harvested energy subject to quality of service (QoS) constraints in dynamic wireless setups.
Syed Mohsin Bokhari, Muhammad Shafi, Sarmad Sohaib, Sanad Al Maskari, Muhammad Ahsan Iftikhar, Kallol Mohanta   +5 more
wiley   +1 more source

Joint Beamforming and User Grouping for FDA-MIMO Assisted Integrated Sensing and Communication

IEEE Open Journal of the Communications Society
Integrated sensing and communication (ISAC) enables the joint realization of environmental sensing and multiuser communications using shared hardware and spectrum resources.
Ruihao Yuan, Soon Xin Ng, Mohammed El-Hajjar   +2 more
doaj   +1 more source

Design of Joint Spatial and Power Domain Multiplexing Scheme for Massive MIMO Systems

International Journal of Antennas and Propagation, 2015
Massive Multiple-Input Multiple-Output (MIMO) is one of the key techniques in 5th generation wireless systems (5G) due to its potential ability to improve spectral efficiency. Most of the existing works on massive MIMO only consider Time Division Duplex (
Zheng Jiang, Bin Han, Peng Chen, Fengyi Yang, Qi Bi   +4 more
doaj   +1 more source

Performance Analysis of Power Control Algorithms in Uplink Cell‐Free Massive MIMO Systems

Journal of Engineering, Volume 2026, Issue 1, 2026.
Cellular massive multiple input multiple output (MIMO) technology has revolutionized wireless communication by enhancing spectral efficiency (SE). However, its ability to meet the growing data rate demands of future networks beyond fifth generation (5G) is limited by challenges like intercell interference.
Abera Sitotaw Mersha, Amare Kassaw Yimer, Fikreselam Gared Mengistu, Kartik Ariyur   +3 more
wiley   +1 more source

Outdoor Massive MIMO Testbed With Directional Beams: Design, Implementation, and Validation

IEEE Access
Massive MIMO has emerged as a key technology for the deployment of 5G networks, significantly enhancing network capacities. By simultaneously scheduling multiple users on the same time and frequency resources, substantial improvements in network capacity
Spandan Bisoyi, Pasupuleti Muralimohan, Harish Kumar Dureppagari, Pavan Reddy Manne, Kiran Kuchi   +4 more
doaj   +1 more source

Cross-Layer Framework for Multiuser Real Time H.264/AVC Video Encoding and Transmission over Block Fading MIMO Channels Using Outage Probability

Advances in Multimedia, 2014
We present a framework for cross-layer optimized real time multiuser encoding of video using a single layer H.264/AVC and transmission over MIMO wireless channels.
Slavche Pejoski, Venceslav Kafedziski
doaj   +1 more source

Generalized Selection Multiuser Scheduling for the MIMO FSO Communication System and Its Performance Analysis

IEEE Photonics Journal, 2016
This paper analyzes the impact of generalized selection multiuser scheduling on the performance of the multiple-input–multiple-output (MIMO) free-space optical (FSO) communication system. We consider a general scenario that the point-to-multipoint
Min Qin, Li Chen, Weidong Wang
doaj   +1 more source

Advanced AI‐Based Energy Efficiency and Network Performance Optimization in Next‐Generation Wireless Systems Using Distributed Collective Intelligence

Journal of Electrical and Computer Engineering, Volume 2026, Issue 1, 2026.
This paper proposes a new framework combining distributed collective intelligence and deep neural networks (DNNs) for multiobjective optimization in wireless systems of future generation. This paper mitigates some of those disadvantages by proposing a distributed consensus algorithm that incorporates predictive energy allocation and power‐based ...
Mohammed Aboud Kadhim, Ahmed Rifaat Hamad, Zeyid T. Ibraheem, Deepali   +3 more
wiley   +1 more source

Modulation-mode and power-assignment for SVD-and GMD-assisted downlink MIMO systems [PDF]

, 2010
Multiuser multiple-input multiple-output (MIMO) downlink (DL) transmission schemes experience both multiuser interference (MUI) as well as inter-antenna interference.
Ahrens, Andreas, Benavente Peces, César, Aust, Sebastian   +2 more
core  

Genetic Algorithm‐Optimized Recurrent Neural Network for Channel Estimation in RIS‐Aided MIMO System With Rake Receiver

Journal of Electrical and Computer Engineering, Volume 2026, Issue 1, 2026.
The integration of reconfigurable intelligent surfaces (RIS) into multiple‐input multiple‐output (MIMO) systems offers transformative potential for enhancing spectral efficiency and mitigating channel impairments. However, efficient and accurate channel estimation (CE) remains a critical challenge due to multipath propagation, high dimensionality, and ...
Kevin M. Mwongera, Philip K. Langat, Franklin M. Manene, Pramita Mishra   +3 more
wiley   +1 more source