Femtocells in 3G Mobile Networks

Neruda, Marek; Vrana, Jaroslav; Bestak, Robert

doi:10.1109/iwssip.2009.5367772

Cited by 16 publications

(8 citation statements)

References 5 publications

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“…These femtocells can provide higher data rates as compared to the 2G femtocells [40]. The UMTS technology has the capability of connecting through IP based networks, which make it more applicable to femtocells.…”

Section: A Technical Aspectsmentioning

confidence: 99%

Interference Management in Femtocells

Zahir

Arshad

Nakata

et al. 2013

IEEE Commun. Surv. Tutorials

321

182

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Abstract-Increase in system capacity and data rates can be achieved efficiently in a wireless system by getting the transmitter and receiver closer to each other. Femtocells deployed in the macrocell significantly improve the indoor coverage and provide better user experience. The femtocell base station called as Femtocell Access Point (FAP) is fully user deployed and hence reduces the infrastructure, maintenance and operational cost of the operator while at the same time providing good Quality of Service (QoS) to the end user and high network capacity gains. However, the mass deployment of femtocell faces a number of challenges, among which interference management is of much importance, as the fundamental limits of capacity and achievable data rates mainly depends on the interference faced by the femtocell network. To cope with the technical challenges including interference management faced by the femtocells, researchers have suggested a variety of solutions. These solutions vary depending on the physical layer technology and the specific scenarios considered. Furthermore, the cognitive capabilities, as a functionality of femtocell have also been discussed in this survey.This article summarises the main concepts of femtocells that are covered in literature and the major challenges faced in its large scale deployment. The main challenge of interference management is discussed in detail with its types in femtocells and the solutions proposed over the years to manage interference have been summarised. In addition an overview of the current femtocell standardisation and the future research direction of femtocells have also been provided.

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Section: A Technical Aspectsmentioning

confidence: 99%

Interference Management in Femtocells

Zahir

Arshad

Nakata

et al. 2013

IEEE Commun. Surv. Tutorials

321

182

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show abstract

“…There are a few modifications made to the standard UMTS architecture in order to accommodate the integration of a femtocell. The new essential network elements in the revised UMTS architecture [10] are the femtocell, itself, known here as the 3G Home NodeB (HNB), the 3G Home NodeB Gateway (HNB GW), Security Gateway (SeGW) and the 3G Home NodeB Management System (HMS). Figure 2.…”

Section: Core Network (Cn)mentioning

confidence: 99%

Femto Cells: Current Status and Future Directions

Elleithy

Rao

2011

IJNGN

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“…Recently, femtocell becomes popular as a new emergence cellular revolution nowadays. Basically, femtocell are based on Access Point Base Station and it is called as Home Node B (HNB) or in other term as Home eNode B (HeNB) [5]. Fig 2 shows the concept of femtocell networks where underlay in the macrocell network that used in this research work.…”

Section: Introductionmentioning

confidence: 99%

Capacity improvement for heterogeneous LTE network by using Fractional Frequency Reuse method

Rosdi

Yusof

Ali

et al. 2014

2014 IEEE 5th Control and System Graduate Research Colloquium

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In cellular network, it is predictable that 2/3 of calls and more 90% data services take place indoors. Because of that reasons, the User Equipment (UE) will having serious problem regarding on capacity achieving in indoors place. Due to this scenario, the femtocell is deployed in order to provide a good indoor coverage. However, deployment of femtocells pose a number of challenges and one of it is how to handle the co-channel interference. Co-channel interference occurs due to the femtocells sharing the same frequency band allocating as macrocells. To resolve this issue, a method called Fractional Frequency Reuse (FFR) is proposed in this paper in order to reduce the interferences in macrocell and femtocell hence the higher capacity network can be achieved. The method focuses on the analyzing and improving the macrocell user's capacity and maximizes the femtocell capacity. The simulation results show that choosing the fraction of center system bandwidth and fraction of center radius becomes important since the proper resource partitioning and interference coordination can be achieved so that it can increasing the user's capacity in network

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Femtocells in 3G Mobile Networks

Cited by 16 publications

References 5 publications

Interference Management in Femtocells

Interference Management in Femtocells

Femto Cells: Current Status and Future Directions

Capacity improvement for heterogeneous LTE network by using Fractional Frequency Reuse method

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