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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50026

Title: An energy-efficient coverage algorithm for macrocell—small cell network systems
Authors: Yao-Liang Chung
Contributors: 國立臺灣海洋大學:通訊與導航工程系
Keywords: efficiency
energy saving
coverage holes
small cells
next-generation cellular systems
Date: 2017-07
Issue Date: 2018-09-07T07:45:01Z
Publisher: Energies (Full Paper)
Abstract: Abstract: The energy efficiency of a macrocell base station (MBS) can be substantially improved via
the deployment of small cell base stations (SBSs) within the coverage area of the MBS. Moreover,
this approach is expected to remain a key feature of communication network markets in the future.
However, little research has been conducted to uncover effective solutions to the issue of coverage
holes (i.e., specific locations or areas in which a user is not able to get an adequate signal from the
wireless network) that may occur in the context of such a network architecture. To address this dearth
of relevant research, the present study proposes an energy-efficient coverage algorithm utilizing
novel system configurations, for use in such macrocell—small cell network systems. The goal of the
proposed algorithm is providing the maximum possible reduction of the combined power consumed
by the transceivers of all the BSs (that is, the SBSs and the MBS), while simultaneously guaranteeing
the provision of comprehensive wireless signal coverage to users under various scenarios. In order to
accomplish this aim in an efficient manner, the algorithm smartly adjusts the power levels of all the
SBSs in a given system, including the full deactivation of a previously active SBS, or the activation of
a previously inactive SBS, according to the dynamics of the given network traffic, thereby modifying
their power consumption as necessary. The results for simulations of various test scenarios indicated
that the algorithm exhibits better performance than two conventional methods in terms of its overall
effects on coverage, power usage, and average transmission rate. The simulated power savings
yielded by the proposed algorithm were particularly notable, as it garnered an improvement as high
as 78% under the condition of light traffic volumes.
Relation: 10(9)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50026
Appears in Collections:[通訊與導航工程學系] 期刊論文

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