A Survey of Scheduling and Interference Mitigationin LTE

Kwan, R.; Leung, Cyril

doi:10.1155/2010/273486

Cited by 126 publications

(76 citation statements)

References 48 publications

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“…It is not bandwidth efficient to reuse the same frequency reuse factor (FRF) in the entire cell [12]. A solution to increase the SINR of cell edge users, while good spectral efficiency is being maintained, is to use a reuse factor greater than one for cell edge regions and RF1 for cell centre regions [13].…”

Section: Partial Frequency Reuse (Pfr)mentioning

confidence: 99%

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Interference Management in Lte Downlink Networks

Afroz¹,

Sandrasegaran²,

Kim³

2015

IJWMN

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Section: Partial Frequency Reuse (Pfr)mentioning

confidence: 99%

“…[b] Inter-cell interference [12] In interference avoidance, the allocation of various resources (e.g. time/frequency/power) is controlled to increase signal to interference and noise ratio, SINR; thereby throughput, for cell edge users and to make sure ICI will be within tolerable limits [6].…”

mentioning

confidence: 99%

Interference Management in Lte Downlink Networks

Afroz¹,

Sandrasegaran²,

Kim³

2015

IJWMN

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“…2 To manage inter-cell interference in LTE+, channels are aggregated into a cell-edge or cellcenter carrier [23], where channels in the cell-edge carriers must be different among neighboring base stations. An example of this type of frequency assignment is shown in Fig.…”

Section: Optimal Assignment Of Dsa Carriersmentioning

confidence: 99%

Dynamic spectrum access in LTE-advanced networks

Deaton

Irwin

DaSilva

2014

Physical Communication

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a b s t r a c tAs early as 2014, mobile network operators' spectral capacity will be overwhelmed by the demand brought on by new devices and applications. To augment capacity and meet this demand, operators may choose to deploy a Dynamic Spectrum Access (DSA) overlay. The signaling and functionality required by such an overlay have not yet been fully considered in the architecture of the planned Long Term Evolution Advanced (LTE+) networks. This paper presents a Spectrum Accountability framework to be integrated into LTE+ architectures, defining specific element functionality, protocol interfaces, and signaling flow diagrams required to enforce the rights and responsibilities of primary and secondary users. We also quantify, through integer programs, the benefits of using DSA channels to augment capacity under a scenario in which the LTE+ network can opportunistically use TV and GSM spectra. The framework proposed here may serve as a guide in the development of future LTE+ network standards that account for DSA.

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“…In the literature, different solutions have been proposed so far to adjust the power radiated by a BS (see for example [1]). The goal is to guarantee capacity to the users associated with a BS, and also to reduce the overall interference with the neighboring BSs (see e.g., the survey [2]). In this context, resource allocation and interference mitigation are investigated in [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Life is Short: The Impact of Power States on Base Station Lifetime

2015

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Abstract:We study the impact of power state transitions on the lifetime of base stations (BSs) in mobile networks. In particular, we propose a model to estimate the lifetime decrease/increase as a consequence of the application of power state changes. The model takes into account both hardware (HW) parameters, which depend on the materials used to build the device, and power state parameters, that instead depend on how and when power state transitions take place. More in depth, we consider the impact of different power states when a BS is active, and one sleep mode state when a BS is powered off. When a BS reduces the power consumption, its lifetime tends to increase. However, when a BS changes the power state, its lifetime tends to be decreased. Thus, there is a tradeoff between these two effects. Our results, obtained over universal mobile telecommunication system (UMTS) and long term evolution (LTE) case studies, indicate the need of a careful management of the power state transitions in order to not deteriorate the BS lifetime, and consequently to not increase the associated reparation/replacement costs.

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A Survey of Scheduling and Interference Mitigationin LTE

Cited by 126 publications

References 48 publications

Interference Management in Lte Downlink Networks

Interference Management in Lte Downlink Networks

Dynamic spectrum access in LTE-advanced networks

Life is Short: The Impact of Power States on Base Station Lifetime

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