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Area Spectral and Energy Efficiency Analysis of Cellular Networks with Cell DTX
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).ORCID iD: 0000-0001-7872-0444
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).
2015 (English)In: IEEE Globecom 2015 , San Diego, December 6th-10th, 2015, IEEE conference proceedings, 2015, 1-6 p.Conference paper (Refereed)
Abstract [en]

Cell discontinuous transmission (DTX) has been proposed as an effective solution to reduce energy consumption of cellular networks. In this paper, we investigate the impact of network traffic load on area spectral efficiency (ASE) and energy efficiency (EE) of cellular networks with cell DTX. Closedform expressions of ASE and EE as functions of traffic load for cellular networks with cell DTX are derived. It is shown that ASE increases monotonically in traffic load, while EE depends on the power consumption of base stations in sleep mode. If this power consumption is larger than a percentage of the active-mode power consumption, EE increases monotonically with traffic load and is maximized when the network is fully loaded. Otherwise, EE first increases and then decreases in traffic load. In this case, ASE and EE are maximized with different loads. The percentage threshold only depends on the path loss exponent of radio propagation environment and is calculated to be 56.2% when the path loss exponent is 4.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2015. 1-6 p.
Keyword [en]
Cellular networks, spectral efficiency, energy efficiency, discontinuous transmission
National Category
Electrical Engineering, Electronic Engineering, Information Engineering Communication Systems
Research subject
Information and Communication Technology
URN: urn:nbn:se:kth:diva-179337DOI: 10.1109/GLOCOMW.2015.7414162ISI: 000380457400205ScopusID: 2-s2.0-84971280259OAI: diva2:882602
Workshop on 5G & Beyond – Enabling Technologies and Applications

QC 20160316

Available from: 2015-12-15 Created: 2015-12-15 Last updated: 2016-09-05Bibliographically approved

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Chang, PeiliangMiao, Guowang
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