Results 11 to 20 of about 528,139 (301)

Determination of Effective Mode Selection for Ensuring Spectrum Efficiency with Massive MIMO in IoT Systems [PDF]

Sensors, 2019
Wireless Sensor Networks (WSNs) based on Internet of Things (IoT) applications are increasing day by day. These applications include healthcare, infrastructure monitoring, smart homes, wearable devices and smart cars.
Osman Dikmen, Selman Kulaç
doaj   +2 more sources

Performance evaluation of MIMO DFT-Spread WR-OFDM system for spectrum efficiency and power efficiency

Journal of Information and Telecommunication, 2022
It is important to design a spectrum-efficient and power-efficient wireless communication system, which is the main design target in cellular and wireless communication engineering.
Md. Najmul Hossain
doaj   +3 more sources

Spectrum Efficiency and Energy Efficiency in Wireless Communication Networks [PDF]

IEEE Wireless Communications, 2020
The twelve articles in this special issue focus on spectrum and energy efficiency in wireless communications.
Yi Qian
exaly   +2 more sources

Edge AI enabled MIMO MC-CDMA for 6G optimizing spectrum and energy efficiency with SIC and deep reinforcement learning. [PDF]

Sci Rep
Vijay A.
europepmc   +3 more sources

High Spectrum Efficiency and High Security Radio-Over-Fiber Systems with Compressive-Sensing-Based Chaotic Encryption. [PDF]

Micromachines (Basel)
Wang Z, Zhang L, Zhang J, Ozolins O, Pang X, Yu X.   +5 more
europepmc   +3 more sources

Spectrum-Efficient User and Qos-Aware Resource Allocation With Enhanced Uplink Transmission in U-LTE Networks Co-Occurrence With Wi-Fi by CRN

IEEE Access, 2023
Unlicensed Long-Term Evolution (U-LTE) is one of the few scientific fields that allow illegitimate access to the 5GHz band to boost data transmission throughput. However, the overall client-perceived Quality-of-Service (QoS) was not improved. This has an
P. B. Pankajavalli, A. Muniyappan, R. Vishnuvarthan   +2 more
doaj   +1 more source

Spectrum Trading for Efficient Spectrum Utilization [PDF]

EAI Endorsed Transactions on Wireless Spectrum, 2014
The conventional command and control based spectrum management has led to substantial underutilization of some spectrum bands while severely crowding others due to the uneven and dynamic needs that vary over time and at different locations. Spectrum trading has emerged as a promising management approach to substantially improve spectrum utilization and
Cong Xiong, Geoffrey Ye Li, Lu Lu, Daquan Feng, Zhi Ding, Helena Mitchell   +5 more
openaire   +2 more sources

Joint DL/UL Decouple User Association in Microwave and mmWave Enabled Beyond 5G Heterogeneous Networks

IEEE Access, 2021
Beyond fifth-generation (5G) heterogeneous networks (HetNets) are facing the challenge of accommodating enormous mobile users and data traffic with scarce spectrum resources in the microWave ( $\mu $ Wave) band.
Humayun Zubair Khan, Mudassar Ali, Muhammad Naeem, Imran Rashid, Ahmed Naeem Akhtar, Faisal Akram   +5 more
doaj   +1 more source

Experimental Study of Simplified UTW-OFDM Receiver Technology for Application to 5G Using Software-Defined Radio Platform

IEEE Open Journal of Vehicular Technology, 2023
The simplified universal time-domain windowed-orthogonal frequency-division multiplexing (Simplified UTW-OFDM) has been proposed to improve spectral efficiency. This study proposed a novel receiving method using an optimal inter-carrier interference (ICI)
Yuu Ichikawa, Keiichi Mizutani, Hiroshi Harada   +2 more
doaj   +1 more source

The Application Research of Atmospheric Optical Communication in Joint Modulation Transmission System

Guangtongxin yanjiu, 2021
Aiming at the demand of high spectrum efficiency and low bit error rate of Wireless Optical Communication (WOC) technology, a joint modulation method of Pulse Amplitude Modulation (PAM) and Pulse Position Modulation (PPM) is proposed.
Le-kun DENG, Ning HE, Chen-chen WU, Yue WU   +3 more
doaj   +1 more source