Bandwidth Management Framework Research Articles

Bandwidth management framework for smart homes using SDN: ISP perspective

This paper proposed a software-defined networking-based (SDN) quality of service (QoS) aware bandwidth management framework for thousands of IoT-enabled smart homes from ISP perspective. Each smart home equips with tens of IoT devices, and each smart home exploits a variety of services. The overall system architecture consists of SDN smart home cloud at ISP side, and massive SDN enabled smart homes. The smart home cloud interconnects with Smart Homes through OpenFlow protocol. With this architecture, we proposed a bandwidth allocation for smart home (BASH) strategy to calculate appropriate bandwidth for each service category according to distinct QoS requirements. ISP can thus use BASH to optimise bandwidth allocation of aggregated and classified services of smart homes. The experiment results show that the proposed framework can effectively enhance QoS and outperform the traditional ISP bandwidth allocation strategy in terms of average transfer ratio, average throughput, average delay and average jitter.

Bandwidth management framework for smart homes using SDN: ISP perspective

This paper proposed a software-defined networking-based (SDN) quality of service (QoS) aware bandwidth management framework for thousands of IoT-enabled smart homes from ISP perspective. Each smart home equips with tens of IoT devices, and each smart home exploits a variety of services. The overall system architecture consists of SDN smart home cloud at ISP side, and massive SDN enabled smart homes. The smart home cloud interconnects with Smart Homes through OpenFlow protocol. With this architecture, we proposed a bandwidth allocation for smart home (BASH) strategy to calculate appropriate bandwidth for each service category according to distinct QoS requirements. ISP can thus use BASH to optimise bandwidth allocation of aggregated and classified services of smart homes. The experiment results show that the proposed framework can effectively enhance QoS and outperform the traditional ISP bandwidth allocation strategy in terms of average transfer ratio, average throughput, average delay and average jitter.

NPRA: Novel Policy Framework for Resource Allocation in 5G Software Defined Networks

In cellular networks, physical resources are always limited, especially when shared among different contributors such as mobile network operator (MNO) or mobile virtual network operators (MVNO) etc. Software Defined Network (SDN) and Network Function Virtualization (NFV) is a Current research area. SDN-based cellular networks provide high Quality of Services (QoS) to the end-user and NFV provides isolation. The sharing of resources is often provided by leveraging virtualization. SDN can generate new forwarding rules and policies for dynamic routing decision based on the traffic classification. However, virtualization in cellular networks is still in infancy and many issues and challenges remain unaddressed. The queue-length problem for providing QoS is cellular network requires attention. The queue management requires separate management protocols for fair allocation of resources. In this research paper, we propose a novel framework for resource allocation and bandwidth management in the 5G cellular network. We are using two level of virtualization, i.e., implementing dynamic resource optimization at network slice manager and executing optimized policies at the wireless virtual manager.

Towards coordinated bandwidth adaptations for hundred-scale 3D tele-immersive systems

3D tele-immersion improves the state of collaboration among geographically distributed participants. Unlike the traditional 2D videos, a 3D tele-immersive system employs multiple 3D cameras based in each physical site to cover a much larger field of view, generating a very large amount of stream data. One of the major challenges is how to efficiently transmit these bulky 3D streaming data to bandwidth-constrained sites. In this paper, we study an adaptive Human Visual System (HVS) -compliant bandwidth management framework for efficient delivery of hundred-scale streams produced from distributed 3D tele-immersive sites to a receiver site with limited bandwidth budget. Our adaptation framework exploits the semantics link of HVS with multiple 3D streams in the 3D tele-immersive environment. We developed TELEVIS, a visual simulation tool to showcase a HVS-aware tele-immersive system for realistic cases. Our evaluation results show that the proposed adaptation can improve the total quality per unit of bandwidth used to deliver streams in 3D tele-immersive systems.

Design and implementation of network management with two-layer fairness approach in campus network environment

Accelerated growth in Internet bandwidth and Internet users have been increased network management complexity. This issue is more pronounced in campus networks as the scale of such networks has increased dramatically. This work proposes a layer-based network bandwidth management framework that significantly decreases the implementation complexity, achieves fair bandwidth allocation and resolves the problem of stolen IP addresses. Simulation results demonstrate that the proposed framework achieves fair bandwidth usage in the subnet and backbone. By the way, we also realise the system with embedded platform to reveal the algorithm and performance.

Bandwidth Management for Supporting Differentiated Service Aware Traffic Engineering

This paper presents a bandwidth management framework for the support of differentiated-service-aware traffic engineering (DS-TE) in multiprotocol label switching (MPLS) networks. Our bandwidth management framework contains both bandwidth allocation and preemption mechanisms in which the link bandwidth is managed in two dimensions: class type (CT) and preemption priority. We put forward a Max-Min bandwidth constraint model in which we propose a novel "use it or lend it" strategy. The new model is able to guarantee a minimum bandwidth for each CT without causing resource fragmentation. Furthermore, we design three new bandwidth preemption algorithms for three bandwidth constraint models, respectively. An extensive simulation study is carried out to evaluate the effectiveness of the bandwidth constraint models and preemption algorithms. When compared with the existing constraint models and preemption rules, the proposed Max-Min constraint model and preemption algorithms improve not only bandwidth efficiency, but also robustness and fairness. They achieve significant performance improvement for the well-behaving traffic classes in terms of bandwidth utilization and bandwidth blocking and preemption probability. We also provide guidelines for selecting different DS-TE bandwidth management mechanisms.

Integration of IEEE 802.11 WLANs with IEEE 802.16-based multihop infrastructure mesh/relay networks: A game-theoretic approach to radio resource management

One of the promising applications of IEEE 802.16 (WiMAX)-based wireless mesh/relay networks is to provide infrastructure/backhaul support for IEEE 802.11-based mobile hotspots. In this article we present an architecture for integrating IEEE 802.11 WLANs with IEEE 802.16-based multihop wireless mesh infrastructure to relay WLAN traffic to the Internet. The major research issues in this integrated architecture are outlined and related work is reviewed. A game-theoretic model is developed for radio resource management in this integrated network architecture. In particular, a multiplayer bargaining game formulation is used for fair bandwidth allocation and optimal admission control of different types of connections (e.g., WLAN connections, relay connections, and connections from standalone subscriber stations) in an IEEE 802.16 base station/mesh router. Both connection-level and inconnection-level performances for this bandwidth management and admission control framework are presented

A new value chain model for the evolution of broadband application market

The market of advanced broadband applications is currently underdeveloped because of some unique technical features of the internet and the existing value chain models cannot guarantee satisfactory application performance to the users. This paper aims to solve the problem from the perspective of industrial organisation. We propose a new value chain model to facilitate commercial development of the broadband application market. It emphasises coordination by demand chain management between all sectors in the value chain to deliver end-to-end Quality of Service (QoS) for broadband applications. We propose a way to implement the new value chain model at the operational level by the availability of enabling technology and a demand-oriented bandwidth management framework. The framework considers user perception and Human-Computer Interaction (HCI) as the common demand characteristics. It includes an HCI-based classification framework to prioritise different broadband applications and a perception-based methodology to determine the optimal bandwidth allocation for individual application.

Adaptive fault tolerant bandwidth management framework for multimedia cellular networks

The design of reliable and fault-tolerant bandwidth management algorithms for mobile cellular networks is an important issue. It has not received much attention in the literature. In the paper, an adaptive fault tolerant scheme that provides high quality of service (QoS) to users in a multimedia cellular network is developed. The most important feature of the algorithm is its ability to respond to current network traffic conditions based on real time estimates. It does not reduce network capacity during normal conditions and adapts to the loss of one or more base stations via the fault tolerance mechanism. With a simulation study, the excellent performance of the scheme for diverse scenarios including failure modes is demonstrated.

An Integrated Adaptive Bandwidth-Management Framework for QoS-Sensitive Multimedia Cellular Networks

Bandwidth is an extremely valuable and scarce resource in a wireless network. Therefore, efficient bandwidth management is necessary in order to provide high-quality service to users in a multimedia wireless/mobile network. In this paper, we propose new online bandwidth-management algorithms for bandwidth reservation, call admission, bandwidth migration, and call-preemption strategies. These techniques are combined in an integrated framework that is able to balance the traffic load among cells accommodating heterogeneous multimedia services while ensuring efficient bandwidth utilization. In addition, our online framework to adaptively control bandwidth is a cell-oriented approach that has low complexity, which makes it practical for real cellular networks. Simulation results indicate the superior performance of our bandwidth-management framework to strike the appropriate performance balance between contradictory quality-of-service requirements.

Differentiated Wavelength Assignment with QoS Recovery for DWDM Next Generation Internet Backbone Networks

This paper describes a differentiated wavelength assignment strategy for the appropriate allocation of wavelengths on wavelength-routed quality of service (QoS) routes with differentiated QoS class and recovery capabilities. The paper is based on the differentiated MPλS services (DMS) model as a framework for optical bandwidth management and the real time provisioning of optical channels in re-configurable transport networks. MPλS stands for multi protocol lambda switching which is a functional part of GMPLS (generalized MPLS). We discuss here a QoS recovery scheme at the optical layer, at the MPλS layer, and at the IP layer, as related to QoS failure caused by device failures or attack-induced faults in dense-wavelength division multiplexing (DWDM) transport networks. According to the QoS characteristics of wavelength in optical links and the type of used optical cross-connect (OXC) nodes, a differentiated wavelength assignment strategy that considers QoS recovery capability is also described. We point out important problems that should be resolved in the DMS model for optical QoS routing with differentiated wavelength assignment.

Design and analysis of a bandwidth management framework for ATM-based broadband ISDN

When designing and configuring an ATM-based B-ISDN, it remains difficult to guarantee the quality of service (QoS) for different service classes, while still allowing enough statistical sharing of bandwidth so that the network is efficiently utilized. These two goals are often conflicting. Guaranteeing QoS requires traffic isolation, as well as allocation of enough network resources (e.g., buffer space and bandwidth) to each call. However, statistical bandwidth sharing means the network resources should be occupied on demand, leading to less traffic isolation and minimal resource allocation. The authors address this problem by proposing and evaluating a network-wide bandwidth management framework in which an appropriate compromise between the two conflicting goals is achieved. Specifically, the bandwidth management framework consists of a network model and a network-wide bandwidth allocation and sharing strategy. Implementation issues related to the framework are discussed. For real-time applications the authors obtain maximum queuing delay and queue length, which are important in buffer design and VP (virtual path) routing.

A framework for bandwidth management in ATM networks-aggregate equivalent bandwidth estimation approach

A unified framework for traffic control and bandwidth management in ATM networks is proposed. It bridges algorithms for real-time and data services. The central concept of this framework is adaptive connection admission. It employs an estimation of the aggregate equivalent bandwidth required by connections carried in each output port of the ATM switches. The estimation process takes into account both the traffic source declarations and the connection superposition process measurements in the switch output ports. This is done in an optimization framework based on a linear Kalman filter. To provide a required quality of service guarantee, bandwidth is reserved for possible estimation error. The algorithm is robust and copes very well with unpredicted changes in source parameters, thereby resulting in high bandwidth utilization while providing the required quality of service. The proposed approach can also take into account the influence of the source policing mechanism. The tradeoff between strict and relaxed source policing is discussed.

Adaptive bandwidth management in ATM networks

AbstractA framework for adaptive bandwidth management in ATM based networks is proposed. It is based on a layered approach which includes bandwidth allocation to virtual networks. The central concept of this approach is adaptive estimation of the effective bandwidth required, by connections carried in the network. To achieve reliable results the estimation process takes into account both the traffic source declarations and the connection superposition process measurements on the network links. This is done in an optimization framework provided by estimation theory. A study, based on a linear two‐state Kalman filter, shows that the proposed approach provides good adaptation to undeclared changes in traffic parameters and that the network performance is significantly improved when compared to the effective bandwidth allocation based solely on the source parameters declarations. These features allow more relaxed source parameter declarations and at the same time permit less stringent source policing. Thus the two bottlenecks influencing bandwidth management in ATM networks can be significantly widened.

Bandwidth management and congestion control framework of the broadband network architecture

Abstract In this paper we describe an integrated set of procedures for bandwidth management and congestion control in IBM's broadband network architecture for high speed networks. These controls operate at two different time scales, at the connection level and at the packet or cell level. Major connection level controls are path selection, admission control and bandwidth allocation. These controls are applied at the connection setup time and are based on the connection characterization and the network state at that time. Packet level controls are access control, traffic monitoring and intermediate node buffer management. Because of their smaller time scale, they do not rely on any feedback information from the network. The main focus of this paoer is to reconcile the different time scales of these controls, and define how they interplay to ensure proper network operation. The ideas presented in this paper are being implemented and deployed in several test-beds and field trials for experimental validation.