A survey on interference management techniques in femtocell self-organizing networks

Mhiri, Fadoua; Sethom, Kaouthar; Bouallègue, Ridha

doi:10.1016/j.jnca.2012.04.021

Cited by 67 publications

(30 citation statements)

References 38 publications

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“…Many works have been done [6][7][8][9][10] in the field of telecommunications to tackle the two aforementioned problems, i.e. Frequency Assignment and PCI Allocation in LTE.…”

Section: Previous Workmentioning

confidence: 99%

New graph colouring algorithm for resource allocation in large-scale wireless networks

Abdullah

Baba

Ali

et al. 2014

2014 IEEE 5th Control and System Graduate Research Colloquium

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The vertex-colouring problem is a well-known classical problem in graph theory in which a colour is assigned to each vertex of the graph such that no two adjacent vertices have the same colour. The minimum vertex-colouring problem is known as NP-hard problem in an arbitrary graph. In this paper a graph colouring algorithm based on modified incidence matrix is proposed for resolving Physical Cell ID (PCI) allocation for largescale femtocell deployment in LTE Telecommunication Networks. The proposed algorithm is not specified for neighbours only, but additionally can deal with neighbours of neighbours' objects due to telecommunication requirements. Our results show that by applying proper searching and assigning methods it is possible to achieve satisfactory results for resource allocation in large and complex networks such as resolving PCI allocation and conflict for large femtocells deployment in LTE Networks.

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“…Many works have been done [6][7][8][9][10] in the field of telecommunications to tackle the two aforementioned problems, i.e. Frequency Assignment and PCI Allocation in LTE.…”

Section: Previous Workmentioning

confidence: 99%

New graph colouring algorithm for resource allocation in large-scale wireless networks

Abdullah

Baba

Ali

et al. 2014

2014 IEEE 5th Control and System Graduate Research Colloquium

View full text Add to dashboard Cite

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“…High-level programming languages and computer-based simulations provide a cost-effective, rapid and flexible approach to model and verify novel interference-management algorithms for HetNet systems [4], [5], [6]. On the other hand, when such algorithms are implemented in real-time DSP prototyping boards and RF transceivers, they take into account real-life operating constraints, implementation losses, component imperfections and signal impairments.…”

Section: Overview Of the Related Literaturementioning

confidence: 99%

Measuring the performance of a distributed interference management scheme in a LTE-based HetNet deployment

Font-Bach¹,

Bartzoudis²,

Payaró³

et al. 2014

2014 IEEE 8th Sensor Array and Multichannel Signal Processing Workshop (SAM)

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This paper presents the experimental evaluation of an interference- mitigation scheme tailored for heterogeneous multi-cell LTE-based systems. The real-time FPGA-based system implementation was evaluated under realistic operating conditions using the GEDOMIS® testbed. An intensive measurement campaign was conducted to assess the performance-gains of the proposed scheme, considering mobile channels and various levels of noise and interference.Peer ReviewedPostprint (published version

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“…Due to the low transmission power (≈ 10 ∼ 100mW ) used by femtocells as compared to MBSs, their contribution in the overall interference will be vary small, hence neglected in the analysis onwards. Therefore, the total interference energy is the summation of all individual interference energies, given by (1). The total interference energy comes out to be E f s…”

Section: Interference Analysis and Modellingmentioning

confidence: 99%

“…The deployment of femtocells nowadays provides a reasonable solution for the higher data rate demands and better indoor coverage for wireless networks [1], [2]. FFR schemes further improve the scenario in OFDMA based systems by intelligently handling the interference [3].…”

Section: Introductionmentioning

confidence: 99%

Interference analysis of subband allocation for femtocells in fractional frequency reuse based OFDMA Networks

Darshi

Bhattacharjee

2014

2014 International Conference on Signal Processing and Communications (SPCOM)

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In Fractional frequency reuse (FFR) based cellular networks which employ femtocells to fulfill the higher data rate requirements, the throughput performance of femtocells are primarily limited by the co-channel interference due to the frequency reuse. However, in orthogonal frequency division multiple access (OFDMA) systems, allocation of an optimum frequency subband based on the minimum interference present in all the available subbands, can improve the performance of femtocells considerably. This paper presents an energy based analysis related to the subband allocation considering the asynchronization effects of interfering signals occurring due to the propagation delays and timing offsets in the network. Based on the analysis presented here, a femtocell can be configured to provide improved performance by selecting a subband least affected by the interference.

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A survey on interference management techniques in femtocell self-organizing networks

Cited by 67 publications

References 38 publications

New graph colouring algorithm for resource allocation in large-scale wireless networks

New graph colouring algorithm for resource allocation in large-scale wireless networks

Measuring the performance of a distributed interference management scheme in a LTE-based HetNet deployment

Interference analysis of subband allocation for femtocells in fractional frequency reuse based OFDMA Networks

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