Enhancing LTE with Cloud-RAN and Load-Controlled Parasitic Antenna Arrays

Vortex

1. Cloud radio access network (C-RAN) systems
   
2. consisting of remote radio heads (RRHs) densely distributed in a
   
3. coverage area and connected by optical fibers to a cloud
   
4. infrastructure with large computational capabilities, have the
   
5. potential to meet the ambitious objectives of next generation
   
6. mobile networks. Actual implementations of C-RANs tackle
   
7. fundamental technical and economic challenges. In this article, we
   
8. present an end-to-end (E2E) solution for practically
   
9. implementable C-RANs by providing innovative solutions to key
   
10. issues such as the design of cost-effective hardware and powereffective signals for RRHs, efficient design and distribution of data
    
11. and control traffic for coordinated communications and
    
12. conception of a flexible and elastic architecture supporting
    
13. dynamic allocation of both the densely distributed RRHs and the
    
14. centralized processing resources in the cloud to create virtual
    
15. base-stations (BSs). More specifically, we propose a novel antenna
    
16. array architecture called load-controlled parasitic antenna array
    
17. (LCPAA) where multiple antennas are fed by a single RF chain.
    
18. Energy and spectral-efficient modulation as well as signaling
    
19. schemes that are easy to implement are also provided.
    
20. Additionally, the design presented for the fronthaul (FH) enables
    
21. flexibility and elasticity in resource allocation to support BS
    
22. virtualization. A layered-design of information control for the
    
23. proposed E2E solution is presented. The feasibility and
    
24. effectiveness of such LCPAA-enabled C-RAN system setup has
    
25. been validated through an over-the-air (OTA) demonstration.

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Enhancing LTE with Cloud-RAN and Load-Controlled Parasitic Antenna Arrays.pdf (1.91 MB, 下载次数: 3)

2020-4-17 13:18 上传

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