A Dynamic Allocation Algorithm for Physical Carrier Resource in BBU Pool of Virtualized Wireless Network

Lu, Ganqiang; Liu, Caixia; Li, Lingshu; Yuan, Quan

doi:10.1109/cyberc.2015.23

Cited by 7 publications

(8 citation statements)

References 24 publications

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“…7 Ericsson evolved packet gateway. http://goo.gl/tEjcWP • Use of proprietary black boxes [3] • Use of inflexible hard-state signalling protocols [49] • Use of monolithic functionalities [3] • Reconfiguration/updates available only with heavy integration within network operators [50] • Updates require replacements of existing equipment even if it is still sufficient for most purposes [50] • High CAPEX to extend the network (i.e., increasing coverage) [50], [59], [60], [61] • High CAPEX to introduce novel services [50], [59], [60], [61] • High OPEX for network management [50], [59], [60], [61] Complexity • Network entities involved in both U/C-planes [51], [52] • Use of GTP tunnels [54], [17] • Offering a converged service view [4] • Centralized U-plane (issues at the SGW and PGW) [53], [49] • Centralized C-plane (issues at the MME) [55] • High number of information related to UEs (charging, QoS, etc.) [47] • Delay susceptible of the overload at the MME, SGW and PGW [53], [49], [55] • Reduction of the overall capacity (in terms of resources to be used for data traffic) of the network [62] • High CAPEX/OPEX to scale the network [17] Centralised U/C-planes • U-plane unaware of session profiles and characteristics [47] • C-plane signalling is growing 50% faster than data traffic [55] • U-plane connectivity may involve a waste of network resources even if UEs do not have data to send [62] • Reduction of the overall capacity (in terms of resources to be used for data traffic) of the network...…”

Section: ) Inflexibilitymentioning

confidence: 99%

“…• inter-cell coordination and BBU pool to manage spectrum resources (examples of a more advanced BBU pool management can be found in [144], [145], [59] );…”

Section: E Virtualization Of C-ranmentioning

confidence: 99%

“…are made at the central controller, while decisions such as resource allocation are made locally at the BS as they impact less neighbouring BSs; this would allow to better handle QoS. Jin et al[108] introduce an SDN controller to manage different BSs, while a controller is used for both RAN and CN management.Lu et al[59] propose a dynamic allocation scheme of radio resources to deal with the dynamic requests from the virtual networks in order to improve the utilization rate of spectrum managed in the BBU pool. Authors consider the underlying physical resource state information (RSI) and queue status information (QSI) for computing the available resources and the change of business of virtual networks, respectively.…”

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confidence: 99%

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Softwarization and virtualization in 5G mobile networks: Benefits, trends and challenges

Condoluci

Mahmoodi

2018

Computer Networks

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The promise behind the effective deployment of 5G networks is an architecture able to provide flexibility, reconfigurability and programmability in order to support, with fine granularity, a wide and heterogeneous set of 5G use cases. This dictates a radical change in the design of mobile systems which, being usually based on the use of static deployment of vendor equipment characterized by monolithic functionality deployed at specific network locations, fail in providing the above mentioned features. By decoupling network functionalities from the underlying hardware, softwarization and virtualization are two disruptive paradigms considered to be at the basis of the design process of 5G networks. This paper analyses and summarizes the role of these two paradigms in enhancing the network architecture and functionalities of mobile systems. With this aim, we analyze several 5G application scenarios in order to derive and classify the requirements to be taken into account in the design process of 5G network.We provide an overview on the recent advances by standardization bodies in considering the role of softwarization and virtualization in the next-to-come mobile systems. We also survey the proposals in literature by underlining the recent proposals exploiting softwarization and virtualization for the network design and functionality implementation of 5G networks. Finally, we conclude the paper by suggesting a set of research challenges to be investigated.

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Section: ) Inflexibilitymentioning

confidence: 99%

“…• inter-cell coordination and BBU pool to manage spectrum resources (examples of a more advanced BBU pool management can be found in [144], [145], [59] );…”

Section: E Virtualization Of C-ranmentioning

confidence: 99%

mentioning

confidence: 99%

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Softwarization and virtualization in 5G mobile networks: Benefits, trends and challenges

Condoluci

Mahmoodi

2018

Computer Networks

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“…In the work [115], the dynamic greedy algorithm is extended by using a genetic algorithm to find the most fit embedding location for a virtual resource request. The authors show that the genetic algorithm offers a small improvement over the dynamic greedy algorithm in terms of resource utility and rejection rate.…”

Section: E Spectrum Level Virtualizationmentioning

confidence: 99%

Defining and Surveying Wireless Link Virtualization and Wireless Network Virtualization

Belt

Ahmadi

Doyle

2017

IEEE Commun. Surv. Tutorials

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Virtualization is a topic of great interest in the area of mobile and wireless communication systems. However the term virtualization is used in an inexact manner which makes it difficult to compare and contrast work that has been carried out to date. The purpose of this paper is twofold. In the first place, the paper develops a formal theory for defining virtualization. In the second instance, this theory is used as a way of surveying a body of work in the field of wireless link virtualization, a subspace of wireless network virtualization. The formal theory provides a means for distinguishing work that should be classed as resource allocation as distinct from virtualization. It also facilitates a further classification of the representation level at which the virtualization occurs, which makes comparison of work more meaningful. The paper provides a comprehensive survey and highlights gaps in the research that make for fruitful future work. arXiv:1705.03768v2 [cs.NI] 4 Jul 2018 Physical DomainR ASCII p(bin) 01101011 binary k character Abstract Domain RASCIĨ RBIN RBIN Representation Level 2: Representation Level 1:

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“…In Lu et al, the SDN is in charge of allocating carrier resources within the BBU pool. The use of SDN was effective, as it adapts the system capacity according to the requested services.…”

Section: Nfv and Sdnmentioning

confidence: 99%

CRAN, H‐CRAN, and F‐RAN for 5G systems: Key capabilities and recent advances

Guizani

Hamdi

2017

Int J Network Mgmt

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Summary The world of telecommunication is witnessing a swift metamorphosis towards fifth generation cellular networks. Particularly, the rapid shift from a user centric to a device centric communication has created a tremendous impact on service complexity and network requirements. The future networks present requisite needs in ubiquitous throughput, low latency, and high reliability. They are also envisioned to provide energy efficiency, spectrum reuse, network scalability, and robustness as well as improved quality of user experience, which proves to be of ultimate importance. Accordingly, government, academic, and industrial institutions are working together to fulfill these challenging goals. Their research efforts have been extensively reported in various topics and directions, such as heterogeneous small cell networks, millimeter wave communication, massive multiple input multiple output, network function virtualization, software‐defined network, and device‐to‐device communication. More interestingly, a revolutionary network architecture based on cloud computing and centralized processing is adopted as one of the best candidates for fifth generation. It is denoted Cloud Radio Access Network (CRAN) and (H‐CRAN) in heterogeneous networks. An upgraded version, namely, Fog RAN (F‐RAN), with caching and fog computing capabilities is also presented. Environmental friendly, it ensures flexibility and scalability with reduced expenditures. This paper presents the aforementioned key technological functionalities and surveys the benefits and challenges of CRAN, H‐CRAN, and F‐RAN.

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A Dynamic Allocation Algorithm for Physical Carrier Resource in BBU Pool of Virtualized Wireless Network

Cited by 7 publications

References 24 publications

Softwarization and virtualization in 5G mobile networks: Benefits, trends and challenges

Softwarization and virtualization in 5G mobile networks: Benefits, trends and challenges

Defining and Surveying Wireless Link Virtualization and Wireless Network Virtualization

CRAN, H‐CRAN, and F‐RAN for 5G systems: Key capabilities and recent advances

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