Results 1 to 10 of about 86,321 (187)
Linear Transceiver design for Downlink Multiuser MIMO Systems: Downlink-Interference Duality Approach [PDF]
IEEE Transactions on Signal Processing, 2013 This paper considers linear transceiver design for downlink multiuser multiple-input multiple-output (MIMO) systems. We examine different transceiver design problems. We focus on two groups of design problems.
Bogale, Tadilo Endeshaw +1 more
core +2 more sources
Sensors, 2021 A significant portion of the operating power of a base station is consumed by power amplifiers (PAs). Much of this power is dissipated in the form of heat, as the overall efficiency of currently deployed PAs is typically very low.
Sina Rezaei Aghdam, Thomas Eriksson
doaj +1 more source
Enhanced MIMO CSI Estimation Using ACCPM with Limited Feedback
Sensors, 2023 Multiple Input and Multiple Output (MIMO) is a promising technology to enable spatial multiplexing and improve throughput in wireless communication networks.
Ahmed Al-Asadi +4 more
doaj +1 more source
Sensors, 2022 In this article, we propose a reliable and low-latency Long Range Wide Area Network (LoRaWAN) solution for environmental monitoring in factories at major accident risk (FMAR).
Dinesh Tamang +4 more
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International Journal of Emerging Research in Engineering, Science, and Management, 2023 This paper focuses on evaluating the secrecy performance of a downlink land mobile satellite (LMS) system. The system faces the challenge of providing secure communication between a satellite and a legitimate user while an eavesdropper is present on the ...
Mahesh Nelavalli, K Subrahmanyam
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Opportunistic downlink interference alignment [PDF]
2014 IEEE International Symposium on Information Theory, 2014 In this paper, we propose an opportunistic downlink interference alignment (ODIA) for interference-limited cellular downlink, which intelligently combines user scheduling and downlink IA techniques. The proposed ODIA not only efficiently reduces the effect of inter-cell interference from other-cell base stations (BSs) but also eliminates intra-cell ...
Yang, Hyun Jong +4 more
openaire +2 more sources
A Systematic Review on NOMA Variants for 5G and Beyond
IEEE Access, 2021 Over the last few years, interference has been a major hurdle for successfully implementing various end-user applications in the fifth-generation (5G) of wireless networks.
Ishan Budhiraja +6 more
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IET Networks, EarlyView., 2023 We utilise a metaheuristic optimisation method, inspired by nature, called the Lévy‐flight firefly algorithm (LFA), to tackle the power regulation and user grouping in the NOMA systems. Abstract The non‐orthogonal multiple access strategies have shown promise to boost fifth generation and sixth generation wireless networks' spectral efficiency and ...
Zaid Albataineh +4 more
wiley +1 more source
Downlink Interference Alignment [PDF]
IEEE Transactions on Communications, 2010 We develop an interference alignment (IA) technique for a downlink cellular system. In the uplink, IA schemes need channel-state-information exchange across base-stations of different cells, but our downlink IA technique requires feedback only within a cell.
Suh, C Suh, Changho +2 more
openaire +4 more sources
Drones, 2022 This paper proposes the use of quasi-stationary aircraft and reconfigurable intelligent surfaces (RIS) to improve the system performance in satellite–terrestrial laser communication downlink.
Yi Wang, Haibo Wang, XueWen Jiang
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