Radio access network design concept for the fourth generation mobile communication system

2002 ◽  
Author(s):  
Y. Yamao ◽  
H. Suda ◽  
N. Umeda ◽  
N. Nakajima
Keyword(s):  
Network Design ◽  
Mobile Communication ◽  
Communication System ◽  
Access Network ◽  
Design Concept ◽  
Fourth Generation ◽  
Mobile Communication System ◽  
Radio Access Network ◽  
Radio Access

Intelligent framework for radio access network design

2019 ◽  
Vol 26 (1) ◽  
pp. 759-774 ◽  
Author(s):  
Taras Maksymyuk ◽  
Eugen Šlapak ◽  
Gabriel Bugár ◽  
Denis Horváth ◽  
Juraj Gazda
Keyword(s):  
Network Design ◽  
Access Network ◽  
Radio Access Network ◽  
Radio Access

RoF-Based Radio Access Network for 5G Mobile Communication Systems in 28 GHz Millimeter-Wave

2020 ◽  
Vol 38 (2) ◽  
pp. 409-420 ◽  
Author(s):  
Minkyu Sung ◽  
Joonyoung Kim ◽  
Eon-Sang Kim ◽  
Seung-Hyun Cho ◽  
Young-Jun Won ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
Mobile Communication ◽  
Communication Systems ◽  
Access Network ◽  
Mobile Communication Systems ◽  
Radio Access Network ◽  
Radio Access ◽  
5G Mobile Communication

scholarly journals Energy Efficiency and Capacity Tradeoff in Cloud Radio Access Network of High-Speed Railways

2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
Shichao Li ◽  
Gang Zhu ◽  
Siyu Lin ◽  
Qian Gao ◽  
Lei Xiong ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Power Allocation ◽  
Communication System ◽  
High Speed ◽  
Access Network ◽  
Small Scale ◽  
Delay Constraint ◽  
Radio Access Network ◽  
Cloud Radio Access Network ◽  
Radio Access

To meet the increasing demand of high-data-rate services of high-speed railway (HSR) passengers, cloud radio access network (C-RAN) is proposed. This paper investigates the tradeoff between energy efficiency (EE) performance and capacity in C-RAN of HSR. Considering that the train location can be predicted, we propose a predictable path loss based time domain power allocation method (PPTPA) to improve EE performance of HSR communication system. First, we consider that the communication system of HSR only bears the passenger information services (PISs). The energy-efficient power allocation problem with delay constraint is studied. The formulated problem is nonconvex. To deal with it, an equivalent convex problem is reformulated. Based on PPTPA, we propose an iterative algorithm to improve the EE performance. Second, we consider that the PISs and the train control services (TCSs) are all bore. A capacity optimization problem with joint EE and services transmission delay constraints is formulated. Based on PPTPA, we propose a hybrid power allocation scheme to improve the capacity of the system. Finally, we analyze the effect of small-scale fading on EE performance. The effectiveness of the proposed power allocation algorithm is validated by HSR channel measurement trace based emulation results and extensive simulation results.

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