Resources negotiation for network virtualization in LTE-A networks

Tseliou, Georgia; Adelantado, Ferrán; Verikoukis, Christos

doi:10.1109/icc.2014.6883804

Cited by 11 publications

(15 citation statements)

References 5 publications

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“…According to (7), if the available resources by the eNB (i.e., RB 0 ) are enough to serve the users in the coverage area of the SCs that cannot be served by them due to lack of RBs (i.e.,E[X 0 i ] with i = 0), then they are served and their throughput equals T 0 N R,…”

Section: Aggregate Throughput Without Renevmentioning

confidence: 99%

“…Firstly, we extend and modify our previous proposal from [7], the Resources nEgotiation for NEtwork Virtualization (RENEV) algorithm, for dynamic virtualization of radio resources spread in a two tier topology. Motivated by the geographical traffic variations, we propose a solution where baseband modules of distributed BSs, interconnected via the logical point-to-point X2 interface, cooperate to reallocate radio resources on a traffic need basis.…”

Section: Introductionmentioning

confidence: 99%

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Scalable RAN Virtualization in Multitenant LTE-A Heterogeneous Networks

Tseliou

Adelantado

Verikoukis

2016

IEEE Trans. Veh. Technol.

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Cellular communications are evolving to facilitate the current and expected increasing needs of Quality of Service (QoS), high data rates and diversity of offered services. Towards this direction, Radio Access Network (RAN) virtualization aims at providing solutions of mapping virtual network elements onto radio resources of the existing physical network. This paper proposes the Resources nEgotiation for NEtwork Virtualization (RENEV) algorithm, suitable for application in Heterogeneous Networks (HetNets) in Long Term Evolution-Advanced (LTE-A) environments, consisting of a macro evolved NodeB (eNB) overlaid with small cells. By exploiting Radio Resource Management (RRM) principles, RENEV achieves slicing and on demand delivery of resources. Leveraging the multi-tenancy approach, radio resources are transferred in terms of physical radio Resource Blocks (RBs) among multiple heterogeneous base stations, interconnected via the X2 interface. The main target is to deal with traffic variations in geographical dimension. All signaling design considerations under the current Third Generation Partnership Project (3GPP) LTE-A architecture are also investigated. Analytical studies and simulation experiments are conducted to evaluate RENEV in terms of network's throughput as well as its additional signaling overhead. Moreover we show that RENEV can be applied independently on top of already proposed schemes for RAN virtualization to improve their performance. The resultsindicate that significant merits are achieved both from network's and users' perspective as well as that it is a scalable solution for different number of small cells.

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Section: Aggregate Throughput Without Renevmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Scalable RAN Virtualization in Multitenant LTE-A Heterogeneous Networks

Tseliou

Adelantado

Verikoukis

2016

IEEE Trans. Veh. Technol.

Self Cite

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“…For the latter, on the one hand, a controller detects the physical link states of its own cluster, which forms an intra-cluster topology; on the other hand, it maintains the reachability information to the neighbor clusters they selected by periodically sending out heartbeat information, then applying network virtualization [32] technology to abstract the physical network to the virtual network with tuples (source cluster, destination cluster, and bandwidth), which forms the cluster-level topology. When centralized routing computation is adopted, every controller delivers its cluster-level topology formatted with JSON (JavaScript Object Notation) to the server.…”

Section: Topology Managementmentioning

confidence: 99%

SDNPS: A Load-Balanced Topic-Based Publish/Subscribe System in Software-Defined Networking

2016

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Publish/subscribe systems on the traditional Internet suffer from poor scalability and high delay in the face of the Internet of Things (IoT) environment. Being customizable, the paradigm of software-defined networking (SDN) provides a chance to establish an IoT-specific network. In this paper, we propose an SDN-based publish/subscribe system named SDNPS, which can construct and fine-tune topic-connected overlays for the sake of disseminating events efficiently and non-redundantly based on a global topology overview. It organizes topics as a Huffman-like topic tree and codes them into binary strings so that filtering and forwarding events can be operated directly on SDN-configurable switches, which helps to reduce end-to-end latency. This hierarchical organization form of topic tree makes it possible to incrementally construct and store overlays, which contribute to reducing the time and space complexity of routing computation. More specifically, it achieves a better tradeoff between load-balancing of the overall optimization objective and the minimal forwarding cost of per-topic overlay.

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“…Indeed, slicing may extend down to the base station [8]. In such settings, purely physical isolation is no longer cost-efficient.…”

Section: B Use-case Examplesmentioning

confidence: 99%

A high assurance virtualization platform for ARMv8

Baumann

Näslund

Gehrmann

et al. 2016

2016 European Conference on Networks and Communications (EuCNC)

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mission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.Abstract-This paper presents the first results from the ongoing research project HASPOC, developing a high assurance virtualization platform for the ARMv8 CPU architecture. Formal verification at machine code level guarantees information isolation between different guest systems (e.g. OSs) running on the platform. To use the platform in networking scenarios, we allow guest systems to securely communicate with each other via platform-provided communication channels and to take exclusive control of peripherals for communication with the outside world. The isolation is shown to be formally equivalent to that of guests executing on physically separate platforms with dedicated communication channels crossing the air-gap. Common Criteria (CC) assurance methodology is applied by preparing the CC documentation required for an EAL6 evaluation of products using the platform. Besides the hypervisor, a secure boot component is included and verified to ensure system integrity.

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Resources negotiation for network virtualization in LTE-A networks

Cited by 11 publications

References 5 publications

Scalable RAN Virtualization in Multitenant LTE-A Heterogeneous Networks

Scalable RAN Virtualization in Multitenant LTE-A Heterogeneous Networks

SDNPS: A Load-Balanced Topic-Based Publish/Subscribe System in Software-Defined Networking

A high assurance virtualization platform for ARMv8

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