Open AccessEnergy efficiency of joint base station and relay sleeping in heterogeneous networks
Author(s) -
Yousefi Erfan,
Eslami Mohsen
Publication year - 2017
Publication title -
iet communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.355
H-Index - 62
eISSN - 1751-8636
pISSN - 1751-8628
DOI - 10.1049/iet-com.2016.0622
Subject(s) - sleep mode , relay , base station , efficient energy use , computer science , heterogeneous network , energy consumption , mode (computer interface) , homogeneous , throughput , computer network , sleep (system call) , joint (building) , energy (signal processing) , cellular network , telecommunications , wireless , wireless network , mathematics , engineering , electrical engineering , statistics , architectural engineering , power (physics) , physics , power consumption , quantum mechanics , combinatorics , operating system
Energy efficiency (EE) is an important criterion in devising emerging mobile networks. One of the techniques that has been proposed to reduce energy consumption of base stations (BSs) in cellular networks is BS sleep mode. In this work, the effect of sleep mode on throughput, coverage and EE of relay assisted heterogeneous cellular networks is analysed. A cooperative relay‐BS sleep mode‐based algorithm for heterogeneous networks is proposed and its performance analytically evaluated. It is shown that the proposed algorithm has a considerably higher EE compared with a homogeneous network without sleep mode or a heterogeneous network with relay‐only sleep mode.