Dynamic load balancing architecture in heterogeneous wireless network environment

Ha, Jeounglak; Kim, Jiyeon; Kim, Jin-Up; Kim, Sang-Ha

doi:10.1109/iscit.2009.5341250

Cited by 30 publications

(14 citation statements)

References 7 publications

(5 reference statements)

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“…In order to overcome the shortcoming of mainstream WLAN-first scheme, some Load Balancing schemes have been proposed in literature [15][16][17]. In these schemes, the traffic is distributed among the available networks, based on different network conditions and objectives.…”

Section: Related Workmentioning

confidence: 99%

“…A load balancing scheme, based on fuzzy logic algorithm is proposed in [15] for a 3G and WLAN HetNet, which focuses on the utilisation fairness. In [16], the authors propose a load balancing algorithm to improve network utilization and call blocking probability. A policy based resource management framework is presented in [17] for Cellular-WLAN integrated network, which improves the network utilization by dynamically balancing the offered traffic load via call admission control (CAC) and vertical handoff (VHO).…”

Section: Related Workmentioning

confidence: 99%

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Adaptive stochastic radio access selection scheme for cellular‐WLAN heterogeneous communication systems

et al. 2016

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This paper proposes a novel Adaptive Stochastic Radio Access Selection (ASRAS) scheme for mobile users in heterogeneous Cellular-WLAN systems. In this scheme, a mobile user located in dual coverage area randomly selects WLAN with probability of ω when there is a need for downloading a chunk of data. The value of ω is optimised according to the status of both networks in terms of network load and signal quality of both cellular and WLAN networks. An analytical model, based on Continuous Time Markov Chain (CTMC) is proposed to optimise the value of ω and compute the performance of proposed scheme in terms of energy efficiency, throughput, and call blocking probability. Both analytical and simulation results demonstrate the superiority of the proposed scheme compared to the mainstream network selection schemes, namely, WLAN-first and Load Balancing.

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Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Adaptive stochastic radio access selection scheme for cellular‐WLAN heterogeneous communication systems

et al. 2016

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“…The non-3GPP inter-working system architecture defined by 3GPP allows efficient utilization and management of multiple access technologies and facilitates, for example, load-balancing [33], off-loading [34], and optimal access to operator managed services offered by the IMS [26]. However, for legacy Internet applications, such as the overthe-top video (OTT) services [35], it may not be feasible always to route all the traffic through the 3GPP CN.…”

Section: Architectural Considerationsmentioning

confidence: 99%

Cross-layer optimized video streaming in heterogeneous wireless networks

Ojanperä¹

2013

SIGMultimedia Rec.

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This dissertation studies the impact of heterogeneous wireless networks on the design and implementation of mobile video streaming services. The aim is to enable Quality of Service (QoS) sensitive video streaming services to take full advantage of the access diversity of heterogeneous networks in order to optimize their operation in terms of quality and efficiency of network resource usage. This nevertheless requires support beyond the layered communication architecture of today's Internet.The thesis proposes an architecture for end-to-end cross-layer signaling and control for video streaming systems. The architecture supports extensive context information transfer in heterogeneous networks; thus, enabling the efficient management of video stream adaptation and user terminal mobility in a diverse and dynamic network environment. This thesis also studies and proposes cross-layer enhancements for adaptive video streaming and mobility management functions enabled by the cross-layer architecture. These include cross-layer video adaptation, congestion-triggered handovers, and concurrent utilization of multiple access networks in the video stream transport. For the video adaptation and multipath transmission, the flexible adaptation and transmission capabilities of the novel scalable video coding technology are used. Regarding the mobility management, the proposed solutions essentially enhance the handover decision-making of the Mobile IP protocol to better support QoS-sensitive video streaming. Finally, the thesis takes a holistic view on the application adaptation and mobility management, and proposes a solution for coordinated control of these two operations in order to achieve end-toend optimization.The resulting mobile video streaming system architecture and the cross-layer control algorithms are evaluated using network simulations and real prototypes. Based on the results, the proposed mechanisms can be seen to be viable solutions for improving video streaming performance in heterogeneous wireless networks. They require changes in the communication end-points and the access network but support gradual deployment. This allows service providers and operators to select only a subset of the proposed mechanisms for implementation. The results also support the need for cross-layer signaling and control in facilitating efficient management and utilization of heterogeneous wireless networks.

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“…[160] proposed a load balancing strategy for heterogeneous wireless environments based on the concept of community. A community consists of several wireless networks (using the same or different technologies) covering a certain geographical area.…”

Section: Handover In Load Balancingmentioning

confidence: 99%

Quality-Oriented Mobility Management for Multimedia Content Delivery to Mobile Users

Ciubotaru

Muntean

2012

Ubiquitous Multimedia and Mobile Agents

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The latest advances in wireless data access technologies and increased popularity of mobile computing have enabled the development of the future mobile Internet. The various wireless technologies and standards already developed or under development support the existence of a highly heterogeneous wireless communication environment in which mobile users access the network from diverse devices and exchange data of various types. In the context of such a heterogeneous wireless and mobile environment, maintaining certain level of Quality of Service required by some applications and consequently providing high user Quality of Experience is very challenging. This chapter analyzes the state of the art in quality-oriented mobility management in heterogeneous wireless environments in the context of mobile multimedia applications. Most important wireless access technologies and multimedia support systems and protocols for wireless delivery are presented, while requirements for quality-oriented mobility management are identified. Handover management is discussed as the component of the mobility management system with the greatest impact on the quality as measured by the user. Finally a novel multimedia mobility management framework is presented which aims at maintaining high user perceived quality while efficiently exploiting all the communication resources available in a heterogeneous wireless environment.

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Dynamic load balancing architecture in heterogeneous wireless network environment

Cited by 30 publications

References 7 publications

Adaptive stochastic radio access selection scheme for cellular‐WLAN heterogeneous communication systems

Adaptive stochastic radio access selection scheme for cellular‐WLAN heterogeneous communication systems

Cross-layer optimized video streaming in heterogeneous wireless networks

Quality-Oriented Mobility Management for Multimedia Content Delivery to Mobile Users

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