Energy-efficient cellular network operation via base station cooperation

Han, Feng; Safar, Z.; Lin, Wei-An; Chen, Yan; Liu, K. J. Ray

doi:10.1109/icc.2012.6364370

Cited by 41 publications

(38 citation statements)

References 13 publications

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“…Remote electrical downtilt lacks these problems, it positively impacts the noise rise and received powers, and thus the coverage for common control channels could be expanded without increasing their power [12]. More recently, BS cooperation has also been proposed to cover the newly introduced coverage holes when switch-off is applied [13].…”

Section: Introductionmentioning

confidence: 99%

A Traffic Aware Energy Saving Scheme for Multicarrier HSPA+

Jada

García-Lozano

Hämäläinen

2015

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

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Abstract. In the near future, an increase in cellular network density is expected to be one of the main enablers for the newly introduced challenging capacity goals. This development will lead to an increase in the network energy consumption. In this context, we propose an energy efficient dynamic scheme for HSDPA+ (High Speed Downlink Packet Access-Advanced) systems aggregating several carriers. In the proposed scheme the network adapts dynamically to the network traffic. The scheme evaluates whether node-B deactivation is feasible without compromising the user flow throughput. Furthermore, instead of progressive de-activation of carriers and/or node-B switch-off, we evaluate the approach where feasible combination of inter-site distance and number of carriers is searched to obtain best savings. The solution exploits the fact that re-activation of carriers might permit turning off the BSs earlier at relatively higher load than existing policies, which provides the highest energy saving. Remote electrical downtilt is also considered as a means to reduce the utilization of lower modulation and coding schemes (MCS) in the new extended cells. This approach promises significant energy savings when compared with existing policies -not only for low traffic hours but also for medium load scenarios.

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Section: Introductionmentioning

confidence: 99%

A Traffic Aware Energy Saving Scheme for Multicarrier HSPA+

Jada

García-Lozano

Hämäläinen

2015

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

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“…An increase in EE is very important because the continuous increase in data demanded by end-users results in a high cost both from an environmental and technological perspective. It is well known that base stations (BS) consume around 60%-80% of power consumption in cellular networks [1][2][3]. Thus, reducing the power consumption of a BS is quite important to reduce the operational costs, as well as the carbon footprint.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, reducing the power consumption of a BS is quite important to reduce the operational costs, as well as the carbon footprint. For this reason, researchers have actively investigated this problem [1,2,[4][5][6][7][8][9][10][11][12][13][14][15]. Most work has concentrated on implementing the BS on/off technique, which means that the BS is turned off when there is no nearby traffic [1,2,9,10,12,14], as well as on conducting theoretical high-level analyses and optimizations to reduce the BS power consumption [7,8,11,13].…”

Section: Introductionmentioning

confidence: 99%

Design of an Energy Efficient Future Base Station with Large-Scale Antenna System

Lee

Kim

2016

Energies

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Due to the continuous increase in data demanded by end-users, an energy-efficient base station (BS) is a vital topic of interest that would not only result in a substantial economic impact on service providers, but would also reduce the carbon footprint of operating a network. In this regard, we propose the structure and systematic operation of a BS with a large-scale (LS) antenna system that can increase the energy efficiency (EE) of cellular systems. The proposed BS structure includes various power-related units, such as a central management apparatus, power controller, EE calculator, radio site-dependent parameter space (RSD-PS) and determiner. With the information provided from each unit, the decision unit determines how to adjust each component of the BS in order to maximize the EE. Extensive simulations show that the proposed BS improves the EE performance by about 83.05% relative to the reference BS.

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“…We overview each component of the LSAS and derive the expected EE gain from each component with an appropriate scheme. In current BS systems, the power amplifier (PA) consumes around 60∼80% of total power consumption [14,15]. Reducing PA power consumption is a main research topic for current signal transmission systems.…”

Section: Introductionmentioning

confidence: 99%

Energy Efficiency Gain of Cellular Base Stations with Large-Scale Antenna Systems for Green Information and Communication Technology

Lee

2017

Sustainability

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Due to the ever-increasing data demand of end users, the number of information and communication technology (ICT)-related devices and equipment continues to increase. This induces large amounts of heat emissions, which can cause serious environmental pollution. In recent times, signal transmission systems such as cellular base stations (BSs) have been constructed everywhere and these emit a large carbon footprint. Large-scale antenna systems (LSASs) that use a large amount of transmission antennas to serve a limited number of users can increase energy efficiency (EE) of BSs based on the beamforming effect, and thus can be a promising candidate to reduce the carbon footprint of the ICT field. In this paper, we discuss the necessary schemes to realize LSASs and show the expected EE gain of the LSAS with enough practicality. There are many obstacles to realize the high EE LSAS, and even though several studies have shown separate schemes to increase the EE and/or throughput (TP) of LSASs, few have shown combinations of schemes, and presented how much EE gain can be achieved by the schemes in the overall system. Based on the analysis in this paper, we believe more detailed work for the realization of high energy efficient BSs with LSASs is possible because this paper shows the necessary schemes and the maximum achievable energy efficiency gain as a reference. Extensive analysis and simulation results show that with proper implementation of the power amplifier/RF module and a robust channel estimation scheme, LSASs with 600 transmitter (TX) antennas can achieve 99.4 times more EE gain compared to the current systems, thereby resulting in significant reduction of carbon footprints.

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Energy-efficient cellular network operation via base station cooperation

Cited by 41 publications

References 13 publications

A Traffic Aware Energy Saving Scheme for Multicarrier HSPA+

A Traffic Aware Energy Saving Scheme for Multicarrier HSPA+

Design of an Energy Efficient Future Base Station with Large-Scale Antenna System

Energy Efficiency Gain of Cellular Base Stations with Large-Scale Antenna Systems for Green Information and Communication Technology

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