mobile relays
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scholarly journals Seven Challenges for Communication in Modern Railway Systems

2021 ◽  
Vol 1 ◽  
Author(s):  
Elias Yaacoub ◽  
Ahmad Alsharoa ◽  
Hakim Ghazzai ◽  
Mohamed-Slim Alouini
Keyword(s):  
Resource Allocation ◽  
Energy Efficiency ◽  
Communication Networks ◽  
Railway Systems ◽  
Term Evolution ◽  
Technological Advances ◽  
Lte Advanced ◽  
Data Rates ◽  
Mobile Relays

To meet the increasing demands for passenger data rates, modern railway communication networks face significant challenges. The advent of 5G communications after the long-term evolution (LTE) and LTE-Advanced (LTE-A) systems provides several technological advances to address these challenges. In this paper, after reviewing the main 5G communication aspects for modern railways, we describe seven main challenges faced by train connectivity, and discuss appropriate solutions. Specifically, we elaborate on techniques for ensuring connectivity and energy efficiency for the passengers' user equipment (UE) through the use of mobile relays (MRs) on top of the train wagons in conjunction with intelligent resource allocation.

scholarly journals Uplink Reference Signals for Power-Efficient Handover in Cellular Networks With Mobile Relays

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 24446-24461
Author(s):  
Muhammad Tayyab ◽  
George P. Koudouridis ◽  
Xavier Gelabert ◽  
Riku Jantti
Keyword(s):  
Cellular Networks ◽  
Power Efficient ◽  
Reference Signals ◽  
Mobile Relays

scholarly journals Mobile relays for urban rail transportation systems

2020 ◽  
Author(s):  
Mauricio Iturralde ◽  
Tanguy Kerdoncuff ◽  
Thomas Galezowski ◽  
Xavier Lagrange
Keyword(s):  
Transportation Systems ◽  
Rail Transportation ◽  
Urban Rail ◽  
Mobile Relays

scholarly journals Handover Performance and Power Consumption Analysis of LTE Mobile Relays

2020 ◽  
Author(s):  
M. Tayyab ◽  
G. P. Koudouridis ◽  
X. Gelabert ◽  
R. Jantti
Keyword(s):  
Power Consumption ◽  
Mobile Relays ◽  
Handover Performance

FTGPHA: Fixed-Trajectory Group Pre-Handover Authentication Mechanism for Mobile Relays in 5G High-Speed Rail Networks

2020 ◽  
Vol 69 (2) ◽  
pp. 2126-2140 ◽  
Author(s):  
Ruhui Ma ◽  
Jin Cao ◽  
Dengguo Feng ◽  
Hui Li ◽  
Shiyang He
Keyword(s):  
High Speed ◽  
Handover Authentication ◽  
High Speed Rail ◽  
Authentication Mechanism ◽  
Trajectory Group ◽  
Mobile Relays

scholarly journals Optimal Mobile Relays Positions and Resource Allocation for Multi-Relay Multi-Destination Wireless Networks

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 47993-48004
Author(s):  
Xu Li ◽  
Huarui Yin
Keyword(s):  
Resource Allocation ◽  
Wireless Networks ◽  
Mobile Relays

Predicted mobility based profitable relay selection in cooperative cellular network with mobile relays

2019 ◽  
Vol 37 ◽  
pp. 100808 ◽  
Author(s):  
Benish Sharfeen Khan ◽  
Sobia Jangsher ◽  
Hassaan Khaliq Qureshi ◽  
Syed Hassan Ahmed
Keyword(s):  
Cellular Network ◽  
Relay Selection ◽  
Mobile Relays

Greedy Algorithm for Selecting D2D Mobile Relays under Cost Constraints

2019 ◽  
Author(s):  
Rita Ibrahim ◽  
Mohamad Assaad ◽  
Berna Sayrac
Keyword(s):  
Greedy Algorithm ◽  
Cost Constraints ◽  
Mobile Relays
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