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Open AccessJournal ArticleDOI

Fundamental trade-offs on green wireless networks

TLDR
In this paper, the authors propose a framework for green radio research and integrate the fundamental issues that are currently scattered, which consists of four fundamental tradeoffs: deployment efficiency, energy efficiency, spectrum efficiency and delay power.
Abstract
Traditional mobile wireless network mainly design focuses on ubiquitous access and large capacity. However, as energy saving and environmental protection become global demands and inevitable trends, wireless researchers and engineers need to shift their focus to energy-efficiency-oriented design, that is, green radio. In this article, we propose a framework for green radio research and integrate the fundamental issues that are currently scattered. The skeleton of the framework consists of four fundamental tradeoffs: deployment efficiency-energy efficiency, spectrum efficiency-energy efficiency, bandwidth-power, and delay-power. With the help of the four fundamental trade-offs, we demonstrate that key network performance/cost indicators are all strung together.

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Citations
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Proceedings ArticleDOI

Energy efficient pico base station switching-on/off in heterogeneous cellular network with minimum rate requirement

TL;DR: An algorithm that determines the optimal user equipment (UE) and base station (BS) association in heterogeneous cellular network by taking into account the energy consumption of PBS switching-on/off operation can considerably reduce the network energy consumption and thus improve the energy efficiency.
Proceedings ArticleDOI

Energy-spectral efficiency in simultaneous wireless information and power transfer

TL;DR: Different EE-SE trade-off and optimization strategies are proposed for various working conditions and numerical results verify that the proposed optimal system performance can be achieved by setting appropriate system parameters.
Posted Content

Joint User Grouping, Scheduling, and Precoding for Multicast Energy Efficiency in Multigroup Multicast Systems

TL;DR: This paper studies the joint design of user grouping, scheduling and precoding to optimize energy efficiency (EE) for multigroup multicast scenarios in single-cell multiuser MISO downlink channels and proposes a convex-concave procedure framework based iterative algorithm for each optimization criteria.
Proceedings ArticleDOI

Joint optimization for cell configuration and offloading in heterogeneous networks

TL;DR: An optimal cell configuration algorithm is proposed by formulating a stochastic programming model that considers both network design and data offloading, and can maximize the profit, under future demand and price uncertainty.
Journal ArticleDOI

Cost-efficient secondary users grouping for two-tier cognitive radio networks

TL;DR: Simulation results show that the performance of the distance-based greedy coloring scheme, in terms of reducing the number of channels to be purchased from the PU networks, approaches that of the optimal scheme in high interference environments.
References
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Journal ArticleDOI

Communication over fading channels with delay constraints

TL;DR: The tradeoff between the average delay and the average transmission power required for reliable communication is analyzed and a dynamic programming formulation is given to find all Pareto optimal power/delay operating points.
Proceedings ArticleDOI

Energy Efficiency Aspects of Base Station Deployment Strategies for Cellular Networks

TL;DR: The results suggest, that for scenarios with full traffic load, the use of micro base stations has a rather moderate effect on the area power consumption of a cellular network.
Journal ArticleDOI

Energy-efficient packet transmission over a wireless link

TL;DR: This paper obtains an optimal offline schedule for a node operating under a deadline constraint, and shows that this lazy schedule is significantly more energy-efficient compared to a deterministic schedule that guarantees queue stability for the same range of arrival rates.
Journal IssueDOI

Cross-layer optimization for energy-efficient wireless communications: a survey

TL;DR: This article presents a comprehensive overview of recent advances in cross-layer design for energy-efficient wireless communications, particularly focus on a system-based approaches toward energy optimal transmission and resource management across time, frequency, and spatial domains.
Proceedings ArticleDOI

EARTH — Energy Aware Radio and Network Technologies

TL;DR: A power efficient transceiver will be developed that adapts to changing traffic load for an energy efficient operation in mobile radio systems and will enable a sustainable increase of mobile data rates.
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