Title
A Framework for Joint Wireless Network Virtualization and Cloud Radio Access Networks for Next Generation Wireless Networks.
Abstract
Wireless network virtualization (WNV) and cloud radio access networks (CRANs) are promising technologies with the potential to be game changing for the fifth generation (5G) wireless networks. In particular, these technologies may have significant impact on the capital expenditure, quality of service provisioning, as well as spectral efficiency in 5G networks. These two technologies are mostly considered separately in previous works. This paper, however, investigates both the gains and requirements of integrating WNV with CRAN. In this paper, we propose WNV schemes for CRAN, where the objective is to maximize the overall system throughput and minimize delay. The proposed schemes are designed to maintain a high level of isolation between mobile network operators (MNOs), which allows the deployment of different scheduling polices by different MNOs, and managing intercell interference, which may lead to significant throughput gain. Overall, the results presented in this paper reveal that a joint CRAN-WNV architecture can be highly efficient when MNOs have unbalanced loads, because MNOs with high loads can seamlessly access the underutilized resources of underloaded MNOs. The throughput gain in unbalanced loads can be as much as 50% using optimal sharing schemes when compared with static sharing, and about 18% when compared with the WNV without CRAN. The resource allocation problem in the joint CRAN-WNV is formulated, and both optimal and low complexity suboptimal solutions are derived. The obtained results show that integrating the two technologies in a joint architecture can significantly improve the network performance. However, reducing the complexity by adopting efficient sharing techniques may have tangible impact on the throughput when compared with optimal sharing.
Year
DOI
Venue
2017
10.1109/ACCESS.2017.2746666
IEEE ACCESS
Keywords
Field
DocType
Wireless resource virtualization,CRAN,ICI management,resource allocation
Virtualization,Wireless network,Computer science,Computer network,Resource allocation,Spectral efficiency,Cellular network,Throughput,Cloud computing,Distributed computing,Network performance
Journal
Volume
ISSN
Citations 
5
2169-3536
3
PageRank 
References 
Authors
0.36
28
5
Name
Order
Citations
PageRank
Mohamad Kalil1455.21
Arafat J. Al-Dweik225031.37
Mohamed Abu Sharkh3886.62
Abdallah Shami484588.93
Ahmed Refaey5598.44