scholarly journals Open RAN—Radio Access Network Evolution, Benefits and Market Trends

2022 ◽  
Vol 12 (1) ◽  
pp. 408
Author(s):  
Dariusz Wypiór ◽  
Mirosław Klinkowski ◽  
Igor Michalski
Keyword(s):  
Access Network ◽  
Network Evolution ◽  
Mobile Radio ◽  
Access Networks ◽  
Theoretical Studies ◽  
Proof Of Concept ◽  
Radio Access Network ◽  
Radio Access ◽  
Market Trends ◽  
Game Changer

Open RAN (radio access network) movement is perceived as a game changer, having robust potential to introduce shifts in mobile radio access networks towards tailor-made solutions based on the architecture decomposition. It is widely assumed that those changes will affect the approach to network deployments and supply chains of network elements and their further integration and maintenance. First deployments of O-RAN-based networks have already delivered broadband services to end users. In parallel, many proof-of-concept feature evaluations and theoretical studies are being conducted by academia and the industry. In this review, the authors describe the RAN evolution towards open models and make an attempt to indicate potential open RAN benefits and market trends.

scholarly journals Evaluation of Interference in Ultra-Dense 5G Radio Access Networks with Beamforming

Telecom IT ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 35-59
Author(s):  
G. Fokin
Keyword(s):  
Radiation Pattern ◽  
Antenna Arrays ◽  
Access Network ◽  
Beam Width ◽  
Base Station ◽  
Access Networks ◽  
Base Stations ◽  
Radio Access Network ◽  
Radio Access Networks ◽  
Radio Access

In this paper, we investigate the dependence of the level of intersystem interference on the beam width of the adaptively formed antenna radiation pattern and the territorial separation of neighboring devices in ultra-dense 5G radio access networks. The results of simulation modeling of a radio access network based on 19 base stations with the parameterization of the antenna array gain by the width of the radiation pattern in the horizontal plane show that when the base station beam is di-rected to the user device and narrowed from 360° to 5°, the level of intrasystem interference decreases by 15 dB compared with the case of omnidirectional antennas. The results of simulation of a radio access network based on 19 three-sector base stations with planar antenna arrays of 64 elements illustrate a significant reduction in the level of interference in comparison with the case of omnidirectional antennas and, in order to obtain zones of a positive signal-to-noise ratio, confirm the need for a territorial separation of neighboring devices by 10–20 % of the range of radio coverage.

How Does Passive Optical Network Tackle Radio Access Network Evolution?

2017 ◽  
Vol 9 (11) ◽  
pp. 1030 ◽  
Author(s):  
Philippe Chanclou ◽  
Hiroo Suzuki ◽  
Jin Wang ◽  
Yiran Ma ◽  
Mauro Renato Boldi ◽  
...  
Keyword(s):  
Optical Network ◽  
Access Network ◽  
Network Evolution ◽  
Passive Optical Network ◽  
Radio Access Network ◽  
Radio Access
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