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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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Journal ArticleDOI

Green Network Costs of 5G and Beyond, Expectations Vs Reality

TL;DR: A mathematical model is presented that helps in understanding different variables which are necessary to advocate the green/renewable method over the traditional form or vice versa and can predict the futuristic total green network’s tradeoffs.
Journal ArticleDOI

Interference Management and Power Allocation for Energy-Efficient Cognitive Femtocell Networks

TL;DR: This paper forms the problem of power allocation and interference management for energy-efficient transmissions in heterogeneous cognitive radio networks with femtocells as a Stackelberg game, and uses the backward induction method to solve the optimal power allocations and price determination.
Journal ArticleDOI

Equalized Time Reversal Beamforming for Frequency-Selective Indoor MISO Channels

TL;DR: This paper derives theoretical performance bounds for ETR and shows that it greatly enhances the BER performance of conventional TR with minimal impact to its beamforming capabilities, and verify the closed-form approximations and show that the proposed ETR technique outperforms conventional TR under any SNR.
Journal Article

Modified proportional fair scheduling for resource reuse and interference coordination in two-tier lte-advanced systems

TL;DR: A novel resource reuse strategy is proposed that employs the reuse of resources in the tier level, i.e. femto tier, and its performance is evaluated based on a number of scenarios to demonstrate that high spectral and energy efficiencies can be achieved in the context of LTE-Advanced systems.
Proceedings ArticleDOI

Energy-efficient power allocation algorithms for OFDM-based cognitive relay networks with imperfect spectrum sensing

TL;DR: This paper investigates the energy-efficient power allocation for orthogonal frequency division multiplexing (OFDM) based relay-aided cognitive radio networks (CRNs) with imperfect spectrum sensing considered in the system model, and proposes optimal and suboptimal algorithms.
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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