Energy efficient high capacity HETNET by offloading high QoS users through femto

Usman, Muhammad; Västberg, A.; Edler, Tomas

doi:10.1109/icon.2011.6168500

Cited by 11 publications

(8 citation statements)

References 6 publications

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“…in [13] evaluate the power consumption and the energy efficiency of a HetNet scenario by considering different inter-site distances among the femtocells of the system. In [14], instead, the authors analyze two different points of view such as the (i) environments side and the (ii) operators side. Thus, they quantify the effect of offloading the traffic in the femtocells in term of spectral efficiency and power consumption.…”

Section: Related Workmentioning

confidence: 98%

“…We remark that, differently to [13] and [14], we consider the power consumption of the system by varying the number of the users within the small BSs and the macrocell. In addition, we take into account the opportunity to switch-off the BSs when there are not users within their coverage.…”

Section: Related Workmentioning

confidence: 99%

“…The energy efficiency of the system in coordination with power saving techniques are taken into account in [13] and [14]. In particular, Arshad et Al.…”

Section: Related Workmentioning

confidence: 99%

See 2 more Smart Citations

Power consumption model using green policies in Heterogeneous Networks

Araniti

Cosmas

Loiacono

et al. 2014

2014 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting

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Although the LTE systems provides high data-rate, low latency and spectrum flexibility, the coverage holes due to the cell edge and high interference areas are still an open issue. The Heterogeneous Networks (HetNets) can be a possible solution to this problems. The HetNet paradigms overlaps low power base stations (BSs) with different transmitted powers within a macro cellular coverage. However, the dense deployment of BSs increases the power consumption of the network and, as a consequence, decreases the system performance due to the high inter-cell interference. In this paper, we propose a power control scheme based on green policies in order to enhance the power saving over Heterogeneous Networks (HetNets) in Long Term Evolution (LTE) systems. In particular, the aim of the proposed framework is to increase the energy efficiency of the system, without decreasing the network throughput. An extensive simulation campaign has been conducted through the usage of the Network Simulator 3 (NS-3). The obtained results show that the proposed green power control reduces the power consumption and enhances the energy efficiency of the system without decreases the throughput of both the BSs and users (UEs).

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Section: Related Workmentioning

confidence: 98%

Section: Related Workmentioning

confidence: 99%

See 1 more Smart Citation

Power consumption model using green policies in Heterogeneous Networks

Araniti

Cosmas

Loiacono

et al. 2014

2014 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting

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show abstract

“…Except for enhancing capacity purposes, the energy efficiency metric is also considered during offloading processes. In [11], the system energy efficiency is improved through offloading the high Quality of Service (QoS) requirement traffic to femtocells. But the fairness between different users is neglected.…”

Section: Introductionmentioning

confidence: 99%

Reverse Auction Based Green Offloading Scheme for Small Cell Heterogeneous Networks

Xu¹,

Yuan²,

Li³

et al. 2016

Mobile Information Systems

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The small cell is treated as a promising proposition to provide hot spot capacity and higher data rates. However, even with dense small cell deployment scenario, the heavy traffic load pressure and low energy efficiency in the small cell heterogeneous network (HetNet) still exist. Therefore, how to make the best use of densely deployed small cells under HetNet environments becomes the focus of researches. Offloading provides a feasible solution to promote cooperation between macrocells and small cells for user traffic supporting. In this paper, we propose the reverse auction based Green Offloading (GO) scheme for energy efficiency improvements. The proposed GO scheme employs the reverse auction theory to handle the offloading decision process, aiming at maximizing the system energy efficiency under the constraints of user Quality of Service (QoS) requirements, bandwidth, and transmission power limitations. Moreover, the reverse auction model gives the facility of multicell coordination transmissions with multiple winners situation. The energy efficiency optimization problem with constraints is solved by Dynamic Programming method with Karush-Kuhn-Tucker (KKT) conditions. The Individual Rationality and Truthfulness of the reverse auction model are also proved. By comparing the energy efficiency performances of the proposed GO scheme with current works within the Long Term Evolution-Advanced (LTE-A) system downlink scenario, simulation results show the improvements of the proposed GO scheme.

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“…But the system EE performance was not considered. In [11], EE was improved through offloading the high Quality of Service (QoS) users to the femtocell, but the fairness between different users was neglected. [12] verified the offloading gain in the macrocell and femtocell overlaid network by analytical evaluation.…”

Section: Introductionmentioning

confidence: 99%

Optimal Energy Efficient Offloading in small cell HetNet with auction

Zhang

Dai

et al. 2014

9th International Conference on Communications and Networking in China

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The small cell network based Heterogeneous Network (HetNet) is featured as the promising way to meet the higher capacity improvement requirements for future. But how to effectively solve the upcoming heavy load and low Energy Efficiency (EE) problem in densely deployment scenario are still the key challenges for the small cell HetNet. In order to solve above problems, we implement the offloading strategy to make the load flow within the network tiers of the HetNet and provide better EE performances. Based on the auction theory, we propose the Optimal Energy Efficient Offloading (OEEO) scheme to maximize the system EE performance under the constraints of guaranteed requirements for the offloading processes. The Karush-Kuhn-Tucker (KKT) condition is utilized to find the optimal solutions. According to the observation of system-level simulation results, the proposed OEEO scheme has better performances over previous work.

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Energy efficient high capacity HETNET by offloading high QoS users through femto

Cited by 11 publications

References 6 publications

Power consumption model using green policies in Heterogeneous Networks

Power consumption model using green policies in Heterogeneous Networks

Reverse Auction Based Green Offloading Scheme for Small Cell Heterogeneous Networks

Optimal Energy Efficient Offloading in small cell HetNet with auction

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