User-assisted coverage and interference optimization for broadband femtocells

Schröder, André; Lundqvist, Henrik; Nunzi, Giorgio; Brunner, Marcus

doi:10.1109/inmw.2009.5195960

Cited by 11 publications

(6 citation statements)

References 7 publications

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“…As discussed in Section IV, such a model is probably not accurate for cellular systems with femtocells. In [31] the authors investigated userassisted approaches to interference optimization, while in [32] the authors presented interference management techniques for both downlink and uplink of femtocells operating based on high speed packet access (HSPA); this work was extended in [33], which developed new analytical techniques to improve the optimization for WCDMA femtocell systems.…”

Section: Modern Femtocell Researchmentioning

confidence: 99%

Femtocells: Past, Present, and Future

Andrews

Claußen²,

Döhler

et al. 2012

IEEE J. Select. Areas Commun.

1,062

703

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Abstract-Femtocells, despite their name, pose a potentially large disruption to the carefully planned cellular networks that now connect a majority of the planet's citizens to the Internet and with each other. Femtocells -which by the end of 2010 already outnumbered traditional base stations and at the time of publication are being deployed at a rate of about five million a year -both enhance and interfere with this network in ways that are not yet well understood. Will femtocells be crucial for offloading data and video from the creaking traditional network? Or will femtocells prove more trouble than they are worth, undermining decades of careful base station deployment with unpredictable interference while delivering only limited gains? Or possibly neither: are femtocells just a "flash in the pan"; an exciting but short-lived stage of network evolution that will be rendered obsolete by improved WiFi offloading, new backhaul regulations and/or pricing, or other unforeseen technological developments? This tutorial article overviews the history of femtocells, demystifies their key aspects, and provides a preview of the next few years, which the authors believe will see a rapid acceleration towards small cell technology. In the course of the article, we also position and introduce the articles that headline this special issue.

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Section: Modern Femtocell Researchmentioning

confidence: 99%

Femtocells: Past, Present, and Future

Andrews

Claußen²,

Döhler

et al. 2012

IEEE J. Select. Areas Commun.

1,062

703

View full text Add to dashboard Cite

show abstract

“…However by deployment of more femtocells the co-interference between macrocell and femtocell also increases. [43] Presents user assisted coverage and interference optimization. The goal is to maximize the coverage while minimizing the interference induced into the other cells by using lower pilot power that limits mobility related problems.…”

Section: Coverage Qualitymentioning

confidence: 99%

A Survey on Femtocells: Benefits Deployment Models and Proposed Solutions

Mahmud¹,

Khan²,

Zafar³

et al. 2013

Journal of Applied Research and Technology

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Femtocell networks are considered to be a viable option that can fulfill the demands of high speed voice and data traffic for the indoor users. It uses the services of the existing broadband connection to connect to the operator core network. The cellular network operators need to modify the existing single tier macrocell network in order to provide the services of femtocells to its users. In this paper, we present a survey on femtocell deployment. Various aspects of femtocell networks in a diverse domain are discussed. A detailed analysis of the previous approaches is given to highlight their pros and the cons.

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“…They modelled interference as a Gaussian random variable which is not always consistent with practical systems. Interference management has been the focus of several papers including [10,11]. In [12] the authors developed new analytical techniques to optimize small cell systems, and [13,14] have considered interference coordination.…”

Section: Introduction Mobile Wireless Communication Systems Today mentioning

confidence: 99%

Performance Benefits of Small Cells and Radio Optimization in Co-Channel Deployments

Reed

Wang

2014

Proceedings of the 9th International Conference on Cognitive Radio Oriented Wireless Networks

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Performance of outdoor small cells with co-channel deployment of macro cells for DS-CDMA systems is considered in this paper. Although interference management techniques, such as self organising networks, have been developed and to some degree deployed there are many open issues especially related to the performance of small cells. Small cells address outdoor hotspots and have different characteristics to indoor self-installed femtocells, including higher power levels and open subscriber group connectivity. This paper describes downlink performance results to better understand key parameters and trade-offs for these co-channel deployments. We describe the parameter configuration, the amount of offload achieved, and throughput for users connected to small cells. The results show that orders of magnitude of throughput improvements can be achieved when as little as four small cells per macro are deployed. We also discuss self optimisation use cases and show some motivating performance results.

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User-assisted coverage and interference optimization for broadband femtocells

Cited by 11 publications

References 7 publications

Femtocells: Past, Present, and Future

Femtocells: Past, Present, and Future

A Survey on Femtocells: Benefits Deployment Models and Proposed Solutions

Performance Benefits of Small Cells and Radio Optimization in Co-Channel Deployments

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