Proceedings ArticleDOI
Spectral and Energy Efficiency Analysis of Dense Small Cell Networks
Edwin Mugume,Daniel K. C. So +1 more
- pp 1-5
TLDR
This paper investigates the effect of varying user densities on the energy efficiency (EE) performance of the network and derives simple analytical approximations that allow important insights to be made on the spectral efficiency (SE) and EE performance of a typical dense small cell network.Abstract:
Mobile network operators are currently faced with exponentially-increasing data traffic demand which necessitates significant investment in network expansion and upgrades. The required capital expenditure (CAPEX) and operational expenditure (OPEX) have reduced revenues and the associated CO2 emissions continue to raise ecological concerns. In this paper, we investigate the effect of varying user densities on the energy efficiency (EE) performance of the network. Using Poisson point process (PPP) theory, we derive simple analytical approximations that allow important insights to be made on the spectral efficiency (SE) and EE performance of a typical dense small cell network. We also study the impact of the sleep mode power consumption on the network EE especially in dense networks where numerous base stations may be idle simultaneously.read more
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Posted Content
A Survey of Multi-Access Edge Computing in 5G and Beyond: Fundamentals, Technology Integration, and State-of-the-Art
Quoc-Viet Pham,Fang Fang,Vu Nguyen Ha,Md. Jalil Piran,Mai Le,Long Bao Le,Won-Joo Hwang,Zhiguo Ding +7 more
TL;DR: This survey provides a holistic overview of MEC technology and its potential use cases and applications, and outlines up-to-date researches on the integration of M EC with the new technologies that will be deployed in 5G and beyond.
Journal ArticleDOI
Energy Efficiency of Downlink Networks With Caching at Base Stations
Dong Liu,Chenyang Yang +1 more
TL;DR: In this article, the authors explore the potential of EE of cache-enabled wireless access networks and identify the key factors that contribute more to the EE gain from caching, and derive the closed-form expression of the approximated EE.
Journal ArticleDOI
Energy Efficiency of Downlink Networks with Caching at Base Stations
Dong Liu,Chenyang Yang +1 more
TL;DR: It is shown that caching at the BSs can improve the network EE when power efficient cache hardware is used and the caching EE gain is large when the backhaul capacity is stringent, interference level is low, content popularity is skewed, and when caching at pico BSs instead of macro BSs.
Journal ArticleDOI
SDN-Based Smart Gateways (Sm-GWs) for Multi-Operator Small Cell Network Management
TL;DR: This work introduces a novel access backhaul network architecture based on a smart gateway (Sm-GW) between the small cell base stations and the conventional backhaul gateways, e.g., LTE servicing/packet gateways (S/P-GWs) and the modest LTE protocol modifications that integrate the Sm-GW into the conventional LTE network.
Journal ArticleDOI
An Energy Saving Small Cell Sleeping Mechanism With Cell Range Expansion in Heterogeneous Networks
TL;DR: Using a stochastic geometry-based network model, the results indicate that the proposed sleeping mechanism can significantly reduce the power consumption of the network compared with the existing sleeping methods while guaranteeing the QoS requirement.
References
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A Tractable Approach to Coverage and Rate in Cellular Networks
TL;DR: The proposed model is pessimistic (a lower bound on coverage) whereas the grid model is optimistic, and that both are about equally accurate, and the proposed model may better capture the increasingly opportunistic and dense placement of base stations in future networks.
Journal ArticleDOI
How much energy is needed to run a wireless network
Gunther Auer,Vito Giannini,Claude Desset,István Gódor,Per Skillermark,Magnus Olsson,Muhammad Imran,Dario Sabella,Manuel J. Gonzalez,Oliver Blume,Albrecht Fehske +10 more
TL;DR: The most important addenda of the proposed E3F are a sophisticated power model for various base station types, as well as large-scale long-term traffic models, which are applied to quantify the energy efficiency of the downlink of a 3GPP LTE radio access network.
Journal ArticleDOI
Seven ways that HetNets are a cellular paradigm shift
TL;DR: The most important shifts in cellular technology in 10-20 years are distilled down to seven key factors, with the implications described and new models and techniques proposed for some, while others are ripe areas for future exploration.
Journal ArticleDOI
Offloading in Heterogeneous Networks: Modeling, Analysis, and Design Insights
TL;DR: It is shown that the optimum fraction of traffic offloaded to maximize SINR coverage is not in general the same as the one that maximizes rate coverage, defined as the fraction of users achieving a given rate.
Journal ArticleDOI
Energy Efficient Heterogeneous Cellular Networks
TL;DR: A stochastic geometry based model is used to derive the success probability and energy efficiency in homogeneous macrocell and heterogeneous K-tier wireless networks under different sleeping policies and provides an essential understanding on the deployment of future green heterogeneous networks.