Quality of service in 3GPP R12 LTE-advanced

Ali, Najah Abu; Taha, Abd‐Elhamid M.; Hassanein, Hossam S.

doi:10.1109/mcom.2013.6576346

Cited by 29 publications

(25 citation statements)

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“…The negotiated flow parameters are then further mapped to their regarding bearers (Poikselkä et al, 2006). In recent editions of LTE Advanced specifications (Release 12), the need for improved QoS and congestion management has been identified (Ali et al, 2013). However, effective congestion management procedures for advanced and dynamic services continue to pose an open research issue.…”

Section: Resource Management and Qos Mechanisms In Lte/epc Networkmentioning

confidence: 99%

Cross-layer QoE-driven admission control and resource allocation for adaptive multimedia services in LTE

Ivesic

Skorin‐Kapov

Matijašević

2014

Journal of Network and Computer Applications

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Section: Resource Management and Qos Mechanisms In Lte/epc Networkmentioning

confidence: 99%

Cross-layer QoE-driven admission control and resource allocation for adaptive multimedia services in LTE

Ivesic

Skorin‐Kapov

Matijašević

2014

Journal of Network and Computer Applications

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“…9. Simplified LTE architecture overview many other publications, such as [104], [105]. It should be noted, however, since LTE is entirely an IP-based network, that it relies on its S1 interface [106], which connects the eNodeBs with the EPC, i.e.…”

Section: B Ltementioning

confidence: 99%

QoS Provisioning in Converged Satellite and Terrestrial Networks: A Survey of the State-of-the-Art

Niephaus

Kretschmer

Ghinea

2016

IEEE Commun. Surv. Tutorials

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It has been widely acknowledged that future networks need to provide significantly more capacity than nowadays' ones in order to deal with the increasing traffic demands of the users. Particularly in regions where optical fiber are unlikely to be deployed due to economical constraints, this is a huge challenge. One option to address this issue is to complement existing narrow-band terrestrial networks with additional satellite connections. Satellites cover huge areas and recent developments have considerably increased the available capacity, while the cost are decreasing. However, geostationary satellite links have significantly different link characteristics than most terrestrial links, mainly due to the higher signal propagation time, which often renders them not suitable for delay intolerant traffic. This article surveys the current state-of-the-art of satellite and terrestrial network convergence. We mainly focus on scenarios in which satellite networks complement existing terrestrial infrastructures, i.e. parallel satellite and terrestrial links exist, in order to provide high bandwidth connections while ideally achieving a similar end user Quality-of-Experience as in high bandwidth terrestrial networks. Thus, we identify the technical challenges associated with the convergence of satellite and terrestrial networks and analyze the related work. Based on this, we identify four key functional building blocks, which are essential to distribute traffic optimally between the terrestrial and the satellite networks. These are the Traffic Requirement Identification function, the Link Characteristics Identification function as well as the Traffic Engineering function and the Execution function. Afterwards, we survey current network architectures with respect to these key functional building blocks and perform a gap analysis, which shows that all analyzed network architectures require adaptations to effectively support converged satellite and terrestrial networks. Hence, we conclude by formulating several open research questions with respect to satellite and terrestrial network convergence.

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“…We also consider that MBMS members update their CQI values every scheduling frame, to allow MSML to select the most suitable subgroup configuration for video delivery according to the channel quality variations. 2 The proposed MSML is designed to assign resources to the subgroups by considering the frequency selectivity. An example is shown in Fig.…”

Section: A System Constraintsmentioning

confidence: 99%

“…Especially group-oriented services, such as TV, be it managed IPTV or Over-The-Top (OTT), news feeds, weather forecast, video conferencing, Internet video streaming, are expected to be massively exchanged over LTE (4G) and future systems [2]. In this scenario, multicast transmissions are gaining in importance, in the view of simultaneously delivering data towards multiple destinations [3], and the Multimedia Broadcast Multicast Service (MBMS) as part of the 3GPP LTE standard Copyright (c) 2015 IEEE.…”

Section: Introductionmentioning

confidence: 99%

Multicast Resource Allocation Enhanced by Channel State Feedbacks for Multiple Scalable Video Coding Streams in LTE Networks

Condoluci

Araniti

Molinaro

et al. 2016

IEEE Trans. Veh. Technol.

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The growing demand of mobile multicast services such as IPTV and video streaming requires effective radio resource management (RRM) to handle traffic with strict Quality of Service constraints over Long Term Evolution (LTE) and beyond systems. Special care is needed to limit the system performance degradation when multiple multicast streams are simultaneously transmitted. To this aim, this paper proposes a RRM policy based on the subgrouping technique for the delivery of scalable multicast video flows in a cell. Our proposal enhances the legacy multicast transmission over LTE systems by exploiting the multi-user diversity and the users' channel quality feedbacks. Moreover, it is designed to take advantage from the frequency selectivity in the subgroup formation. Simulation results demonstrate the effectiveness of the proposed scheme, which outperforms existing approaches from the literature. It succeeds to achieve higher spectral efficiency and to guarantee adequate video quality to all the multicast receivers and improved quality to the ones with good channel conditions.

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Quality of service in 3GPP R12 LTE-advanced

Cited by 29 publications

References 0 publications

Cross-layer QoE-driven admission control and resource allocation for adaptive multimedia services in LTE

Cross-layer QoE-driven admission control and resource allocation for adaptive multimedia services in LTE

QoS Provisioning in Converged Satellite and Terrestrial Networks: A Survey of the State-of-the-Art

Multicast Resource Allocation Enhanced by Channel State Feedbacks for Multiple Scalable Video Coding Streams in LTE Networks

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