The common RRM approach to admission control for converged heterogeneous wireless networks

Skehill, Ronan; Barry, Michael; Kent, W.; O’Callaghan, Michael; Gawley, N.; McGrath, Sean

doi:10.1109/mwc.2007.358964

Cited by 34 publications

(16 citation statements)

References 3 publications

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“…The NRTV calls are modelled by a Poisson distribution, and the call duration is exponentially distributed with an average of 180 s. The 95% confidence interval is represented in the curves by the vertical bars. Figure 10 reports the total ST for a system without iCRRM, using the standard CRRM from [18]. In such system, each one of the two frequency bands are managed separately.…”

Section: Resultsmentioning

confidence: 99%

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Integrated Common Radio Resource Management with Spectrum Aggregation Over Non-Contiguous Frequency Bands

Cabral

Meucci

Mihovska

et al. 2011

Wireless Pers Commun

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This paper proposes an Integrated Common Radio Resource Management (iCRRM). The iCRRM performs classic CRRM functionalities jointly with Spectrum Aggregation (SA), being able to switch users between non-contiguous frequency bands. The SA scheduling is obtained with an optimised General Multi-Band Scheduling algorithm with the aim of cell throughput maximisation. In particular, we investigate the dependence of the throughput on the cell coverage distance for the allocation of users over the 2 and 5 GHz bands for a single operator scenario under a constant average Signal to Interference-plusNoise Ratio. For the performed evaluation, the same type of Radio Access Technology is considered for both frequency bands. The operator has the availability of a non-shared 2 GHz band and has access to part (or all) of a shared frequency band at 5 GHz. The performance gain, analysed in terms of data throughput, depends on the channel quality for each user in the considered bands which, in turn, is a function of the path loss, interference, noise, and the distance from the Base Station. An almost constant gain near 30% was obtained with the proposed optimal solution compared to a system where users are first allocated in one of the two bands and later not able to handover between the bands.

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Section: Resultsmentioning

confidence: 99%

“…10·A cell (18) Considering that the distance in the path loss equation is expressed in kilometres and that:…”

Section: Discussionmentioning

confidence: 99%

Integrated Common Radio Resource Management with Spectrum Aggregation Over Non-Contiguous Frequency Bands

Cabral

Meucci

Mihovska

et al. 2011

Wireless Pers Commun

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“…The proposed CA-FEI framework can be considered as complementary to [12], which presents a scheme for dynamic service-level agreement negotiation between the ISP provider and the femtocell operator, aiming to tackle the problem of xDSL line's varying capacity. In general, our proposed scheme adopts a hybrid partitioning policy [13] and can be classified within the family of admission control schemes designed for the integration of heterogeneous networks, such as [14][15][16][17]. However, such schemes are not directly applicable in our case as either (a) they consider significantly different system models, which in most cases include networks that have their own separate links to the core network or (b) they support basic QoS features that are not compatible with the strict QoS requirements of a femtocell.…”

Section: Integration Of Femtocell and Ip Trafficmentioning

confidence: 99%

A context-aware framework for the efficient integration of femtocells in IP and cellular infrastructures

Makris

Νομικός

Skoutas

et al. 2013

J Wireless Com Network

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In today's heterogeneous networking (HetNet) environments, where end users are provided with universal connectivity opportunities, femtocell deployments can become key players in the enhancement of critical performance indicators such as capacity, coverage, QoS, etc. In order to confront the up-to-date LTE femtocell challenges, we propose a context-aware framework that provides a controlled environment from the femtocell point of view, which is required for applicable functionality. More specifically, we aim to (a) control the local environment where the femtocell is placed within, by efficiently managing the total incoming traffic load and by continuously adjusting the distribution of the backhaul capacity among the coexisting networks and (b) control the macro-femto interference caused by macrocell users transmitting close to the femtocell by investigating the "femtocell as a relay" concept. Finally, the performance of the proposed framework is evaluated via simulation results showing that the overall performance of a HetNet environment can be leveraged in terms of QoS requirements, energy saving and data rate enhancement.

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“…The best performance is obtained when VHOs are performed. In [23], an admission control strategy for CRRM is presented, highlighting the advantages of statistics based methods over counter-based ones.…”

Section: Introductionmentioning

confidence: 99%

A Cost Function Model for CRRM over Heterogeneous Wireless Networks

Serrador

Correia

2010

Wireless Pers Commun

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Heterogeneous cellular networks performance is usually analysed by taking several Key Performance Indicators (KPIs) into account, their proper balance being required in order to guarantee a desired Quality of Service (QoS). An approach to simplify and integrate a set of KPIs into a single one is presented, by using the proposed Cost Function model that includes these KPIs, providing a single evaluation parameter as output, and reflecting network conditions and Common Radio Resource Management (CRRM) strategies performance. This paper proposes a Cost Function that enables the implementation of different CRRM algorithms and policies, by manipulating KPIs according to user's or operator's perspectives, allowing for a better QoS. Results show that different policies can in fact be established, with a different impact on the network, e.g., with median values ranging by a factor higher than two.

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The common RRM approach to admission control for converged heterogeneous wireless networks

Cited by 34 publications

References 3 publications

Integrated Common Radio Resource Management with Spectrum Aggregation Over Non-Contiguous Frequency Bands

Integrated Common Radio Resource Management with Spectrum Aggregation Over Non-Contiguous Frequency Bands

A context-aware framework for the efficient integration of femtocells in IP and cellular infrastructures

A Cost Function Model for CRRM over Heterogeneous Wireless Networks

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