Dynamic Resource Partitioning for Downlink Femto-to-Macro-Cell Interference Avoidance

Bharucha, Zubin; Saul, Andreas; Auer, Gunther; Haas, Harald

doi:10.1155/2010/143413

Cited by 57 publications

(40 citation statements)

References 5 publications

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“…Hence, user outages are prevented by scheduling victim users in dedicated resources, while the spectrum is still reused in co-channel CCs. The resources within a certain CC may also be partitioned into smaller chunks for similar interference mitigation purposes [6].…”

Section: Macrocell Spectrummentioning

confidence: 99%

“…Capacity cumulative distribution functions (CDFs) of indoor and outdoor users for different SSRs have been compared through computer simulations in [9], which shows that for certain scenarios, the performance close to the co-channel deployment can be obtained by appropriately setting the SSR value in a dedicated channel setting. Bharucha et al investigate the impact of dynamic resource partitioning for downlink femto-to-macrocell interference avoidance for co-channel femtocell deployments in [6]. The simulation results show that co-channel deployment with dynamic resource partitioning can benefit from the frequency reuse property to achieve high throughputs, and femtocells can switch to orthogonal resource utilization when a close-by macrocell user is detected.…”

Section: Macrocell Spectrummentioning

confidence: 99%

See 1 more Smart Citation

Fair and QoS-oriented resource management in heterogeneous networks

Erturk

Güvenç

Mukherjee³

et al. 2013

J Wireless Com Network

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In this paper, a heterogeneous network composed of femtocells deployed within a macrocell network is considered, and a quality-of-service (QoS)-oriented fairness metric which captures important characteristics of tiered network architectures is proposed. Using homogeneous Poisson processes, the sum capacities in such networks are expressed in closed form for co-channel, dedicated channel, and hybrid resource allocation methods. Then a resource splitting strategy that simultaneously considers capacity maximization, fairness constraints, and QoS constraints is proposed. Detailed computer simulations utilizing 3GPP simulation assumptions show that a hybrid allocation strategy with a well-designed resource split ratio enjoys the best cell-edge user performance, with minimal degradation in the sum throughput of macrocell users when compared with that of co-channel operation.

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Section: Macrocell Spectrummentioning

confidence: 99%

Section: Macrocell Spectrummentioning

confidence: 99%

Fair and QoS-oriented resource management in heterogeneous networks

Erturk

Güvenç

Mukherjee³

et al. 2013

J Wireless Com Network

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show abstract

“…A dynamic resource partitioning method that denies Home enhanced NodeBs (HeNBs) to access the downlink resources that are assigned to macro UEs in their vicinity was introduced by Bharucha et al [9]. Here, the interference on most vulnerable MUEs can be ef-fectively controlled at the expense of HeNB's capacity.…”

Section: Introductionmentioning

confidence: 99%

Scalable and Self-sustained Algorithms for Femto-Cell Interference Mitigation

Palipana

Zaki

Toseef

et al. 2015

Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering

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Abstract. Cellular networks are reaching their physical limits providing capacity that is almost near the Shannon theory. However, cellular usage is still increasing exponentially with hungry applications demanding higher data rates. As a result, designers are facing significant challenge in meeting the required demands. One of the promising solutions, being fostered by the 3GPP, is to increase the spectral efficiency through higher frequency reuse using smaller and denser network cells such as femto, pico and nano cells. One of the main challenges behind using smaller cells is managing interference, in this paper, we propose two novel solutions that alleviate the interference of femto-cells on macro-cell user equipment (MUEs). The solutions do not rely on any additional information exchange or signaling, nor do they rely on the backhaul and it's delay. The first proposal is Femto-cell Power Control Scheme (FPCS) that utilizes an analytical approach to adapt the femto base station's transmit power based on Channel Quality Indicator (CQI) reports from affected MUEs. The second method is Random Physical Resource Block Selection Scheme (RPSS) that allocates the femto-cell's resources from a random subset of Physical Resource Blocks (PRBs) so that the MUEs benefit from a reduced interference level. Our evaluations have shown that the two proposals do alleviate the femto-cell interference significantly, increasing the SINR and enhancing the end performance. To the best of our knowledge, no similar work exist in literature that addresses the femto-cell's interference without information exchange.

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“…Notably, an important and detrimental problem facing SCNs is the presence of interference among neighboring SNCs, and between the SNCs and the macrocell LTE network [2]. Several solutions are presented in the bibliography about how to mitigate interference in co-channel femto-to-macro Downlink (DL) interference [3][4] [5][6] [7]. These studies have consistently shown that a coverage-hole exists when co-channel femto cells are deployed in a macrocell overlay network.…”

Section: Introductionmentioning

confidence: 99%

“…A major portion of the existing literature has investigated the interference management issues of integrated LTE and Small Cell deployments [3][4] [5][6] [7][8] [9]. However, the area of Power Control in Small Cell networks is not thoroughly investigated in the literature.…”

Section: Introductionmentioning

confidence: 99%

A Power Control Mechanism Based on Priority Grouping for Small Cell Networks

Alexiou

Billios

Bouras

2013

2013 Eighth International Conference on Broadband and Wireless Computing, Communication and Applications

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Abstract-Future mobile networks following Long Term Evolution (LTE) will be characterized by demanding services, in terms of bandwidth and delay, already dominant in wired networks, such as cloud-computing, High Definition of anything (HDOA) and highly-interactive online games. Small Cell technology is one of the key-technologies aiming to address the need for ultra-high performance in future mobile networks. This paper is focused on efficient power control in Small Cell Networks (SCNs). In particular, we propose a power control mechanism for efficient power allocation in SCNs. The proposed mechanism efficiently controls systems' interference while on the other hand guarantees home user QoS. We introduce the methodology of Priority Grouping, in which home users in the topology is assigned to one of the available groups with different priorities in terms of power requirements and requested traffic load. The mechanism dynamically updates the Home evolved Node B power setting based on the topology of the macro and home users in real time. Additionally, depending on the examined traffic scenario the mechanism can provide better protection (in terms of interference) either on macro users or on home users.

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Dynamic Resource Partitioning for Downlink Femto-to-Macro-Cell Interference Avoidance

Cited by 57 publications

References 5 publications

Fair and QoS-oriented resource management in heterogeneous networks

Fair and QoS-oriented resource management in heterogeneous networks

Scalable and Self-sustained Algorithms for Femto-Cell Interference Mitigation

A Power Control Mechanism Based on Priority Grouping for Small Cell Networks

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