Energy Efficiency-Spectral Efficiency Tradeoff in Interference-Limited Wireless Networks with Shadowing

Alam, Ahmad Mahbubul; Mary, Philippe; Baudais, Jean-Yves; Lagrange, Xavier

doi:10.1109/vtcfall.2015.7390917

Cited by 7 publications

(4 citation statements)

References 15 publications

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“…P c and P 0 respectively. Moreover, since ASE converges towards a limit while EE decreases when P t is increased, a sharp decrease of EE is observed for a slight improvement of ASE, as it has been also observed in regular hexagonal networks [41]. The results also demonstrate that at optimal transmit power, ρ = 0.1 allows to achieve the best ASE for the SLNR precoder without loosing too much EE compared to other values of ρ.…”

Section: Numerical and Simulation Resultssupporting

confidence: 73%

Asymptotic Analysis of Area Spectral Efficiency and Energy Efficiency in PPP Networks With SLNR Precoder

Alam

Mary

Baudais

et al. 2017

IEEE Trans. Commun.

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Section: Numerical and Simulation Resultssupporting

confidence: 73%

Asymptotic Analysis of Area Spectral Efficiency and Energy Efficiency in PPP Networks With SLNR Precoder

Alam

Mary

Baudais

et al. 2017

IEEE Trans. Commun.

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“…SE and then sharply decreases when the transmit power increases, i.e., when SE increases. This behaviour, which has been reported in several other works, e.g., [39,40], is explained by the presence of static power consumptions, i.e., independent of the transmit power, counterbalancing the natural conflicting behaviour of EE and SE. Indeed, at low transmit power, i.e., low SE, the static parts are predominant and hence increasing the transmission power results in an increase of both SE and EE.…”

Section: Energy Efficiency-spectral Efficiency Tradeoffsupporting

confidence: 75%

Energy efficiency analysis of hybrid-ARQ relay-assisted schemes in LTE-based systems

Maaz¹,

Lorandel²,

Mary³

et al. 2016

J Wireless Com Network

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This work deals with the analysis of energy efficiency (EE) issues of hybrid automatic repeat request (HARQ) protocols such as Chase combining (CC) and incremental redundancy (IR), in a LTE baseband-based half-division duplex relay-assisted network. The EE performance is highly dependent on delay and circuitry power consumption, i.e., baseband and radio-frequency (RF) parts, and the effects of these components are investigated for amplify and forward (AF) and decode and forward (DF) protocols. Moreover, a realistic estimation of the baseband power consumption is provided. Our contributions in this paper can be summarized as follows: (1) an accurate estimation of power consumption of the main blocks of the LTE baseband is provided based on a real field-programmable gate array (FPGA) target and is integrated to a global energy consumption model (2) based on the previous power consumption evaluation; energy-efficiencies of DF protocol with HARQ-CC and HARQ-IR are investigated with various modulation orders; in addition, a quite insightful study of the energy efficiency-spectral efficiency trade-off is conducted, and (3) DF and AF protocols with HARQ are compared in terms of EE, and recommendations are suggested in order to jointly enhance the QoS and the energy efficiency of wireless systems.

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“…For the case of single-cell network, the SE and EE are evaluated using (11) and (14), and for multi-cell network, Monte Carlo simulation has been performed using (10) and (13). The steps used in simulation are given below, and the system parameters used are given in Table 1.…”

Section: Numerical Results Of Se and Eementioning

confidence: 99%

“…The trade-off between SE and EE for an interference limited wireless network using a power allocation algorithm is examined in [10]. The effect of shadowing and frequency reuse factor on SE and EE for a wireless network is considered in [11]. The SE and EE for a cellular network are examined for a simple interference model and Rayleigh fading environment in [12,13].…”

Section: Introductionmentioning

confidence: 99%

Spatial spectral and energy efficiencies of cellular networks limited by co-channel interference and path loss in Nakagami-m fading environment

Hamed

Rao

2018

J Wireless Com Network

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A comprehensive framework for design of hexagonal cellular network system in terms of spatial spectral and energy efficiencies is presented. The communication environment in the system is assumed to be Nakagami-m fading coupled with simplified path loss model and co-channel interference. Three base station antenna configurations namely, omni, 120 • and 60 • are considered. Closed-form expressions for spatial spectral and energy efficiencies and coverage probability are derived and illustrated as a function of signal-to-noise ratio, cell radius, reuse distance, path loss exponent factor, and fading figure. A discussion of trade-offs among spatial spectral efficiency, spatial energy efficiency, and coverage probability as a function of parameters of cellular system and propagation environment is also provided. Numerical results show that the use of sectorized antenna system in the cellular network provides significant improvements even under severe propagation and interference conditions. For example, it is observed that the 120 • base station antenna configuration system provides nearly double the spatial energy efficiency relative to the omni configuration system.

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Energy Efficiency-Spectral Efficiency Tradeoff in Interference-Limited Wireless Networks with Shadowing

Cited by 7 publications

References 15 publications

Asymptotic Analysis of Area Spectral Efficiency and Energy Efficiency in PPP Networks With SLNR Precoder

Asymptotic Analysis of Area Spectral Efficiency and Energy Efficiency in PPP Networks With SLNR Precoder

Energy efficiency analysis of hybrid-ARQ relay-assisted schemes in LTE-based systems

Spatial spectral and energy efficiencies of cellular networks limited by co-channel interference and path loss in Nakagami-m fading environment

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