Results 21 to 30 of about 74,234 (189)

Comparison of uplink SAR values in train environment for different wireless technologies [PDF]

open access: yes, 2015
A comparison of uplink Specific Absorption Rate (SAR) values in a train environment for different wireless technologies using macrocells or femtocells is presented. The comparison is based on both simulations and real-life experiments.
Aerts, Sam   +4 more
core   +1 more source

A Comparison of CP-OFDM, PCC-OFDM and UFMC for 5G Uplink Communications

open access: yesIEEE Access, 2019
Polynomial-cancellation-coded orthogonal frequency division multiplexing (PCC-OFDM) is a form of OFDM that has waveforms which are very well localized in both the time and frequency domains and so it is ideally suited for use in the 5G network.
Gayathri Kongara   +3 more
doaj   +1 more source

A novel frequency-domain implementation of Tomlinson-Harashima precoding for SC-FDMA [PDF]

open access: yes, 2009
There is considerable interest in the use of single carrier frequency division multiple access (SC-FDMA) as the uplink transmission scheme in the 3GPP Long Term Evolution standard. This interest is justified by the inherent single carrier structure of SC-
Nix, AR, Noune, MB
core   +2 more sources

A Systematic Review on NOMA Variants for 5G and Beyond

open access: yesIEEE 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
doaj   +1 more source

Bidirectional resource scheduling algorithm for advanced long term evolution system

open access: yesEngineering Reports, 2020
The 5G long term evolution‐advanced (LTE‐A) system aims to offer unprecedent data rates, user experience, and minimal latency amongst the end users with the introduction of carrier aggregation (CA) technology.
Ravi Gatti, Shiva Shankar
doaj   +1 more source

Wireless Power Transfer in Massive MIMO Aided HetNets with User Association [PDF]

open access: yes, 2016
This paper explores the potential of wireless power transfer (WPT) in massive multiple input multiple output (MIMO) aided heterogeneous networks (HetNets), where massive MIMO is applied in the macrocells, and users aim to harvest as much energy as ...
Jin, Shi   +4 more
core   +2 more sources

Error Bounds for Uplink and Downlink 3D Localization in 5G mmWave Systems [PDF]

open access: yes, 2018
Location-aware communication systems are expected to play a pivotal part in the next generation of mobile communication networks. Therefore, there is a need to understand the localization limits in these networks, particularly, using millimeter-wave ...
Abhayapala, Thushara   +4 more
core   +2 more sources

Improved Detection in Successive Interference Cancellation NOMA OFDM Receiver

open access: yesIEEE Access, 2019
A successive interference cancellation receiver is one of the important blocks in non-orthogonal multiple access (NOMA) transmission. The quality of detection of the strongest user signals often decides about the quality of the whole system and minimizes
Hind S. Ghazi, Krzysztof W. Wesolowski
doaj   +1 more source

Multiobjective Optimization for Resource Allocation in Full-duplex Large Distributed MIMO Systems

open access: yesAdvances in Electrical and Computer Engineering, 2021
The most conflicting key variables in wireless networks are energy efficiency (EE) and spectral efficiency (SE). In this paper, we propose an energy-efficient allocation algorithm of network resources for multi-input multi-output networks distributed ...
SHARMA, S., YOON, W.
doaj   +1 more source

Analysis of Downlink Uplink Decoupled Dense Heterogeneous Cellular Network based on User Association using Multi-Slope Path Loss Model

open access: yesAdvances in Electrical and Computer Engineering, 2019
Keeping in consideration the expected need of node densification of heterogeneous cellular networks in near future, it is imperative that more accurate path loss models be used when analyzing heterogeneous cellular networks performance in terms of user
ALI, S., ASLAM, M. I., AHMED. I., J.
doaj   +1 more source

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