Title :
Cell division, migration and death for energy efficient 5G ultra-small cell networks
Author :
Zhehan Li ; Grace, David ; Mitchell, Paul
Author_Institution :
Dept. of Electron., Univ. of York, York, UK
Abstract :
In this paper, a novel topology management scheme is proposed for 5G Small Cell Networks (SCNs). The scheme is based on cell division, migration and death dedicated to exploiting the sleep mode of base stations to reduce the number of active base stations in a SCN for energy saving. Direction Of Arrival is used in a distributed way to adapt networks to the dynamic traffic conditions. Simulation results show that the proposed scheme saves 39% power at low traffic loads compared with no topology management. With the scheme, SCNs can react to various traffic loads and consequently can sustain at least 1.2 Gbps/km2/MHz traffic with low blocking probability. The proposed scheme is compared to an existing topology management scheme and demonstrated to attain similar performance while reducing information exchange overhead. The alternative configurations of the scheme are investigated and analyzed.
Keywords :
5G mobile communication; direction-of-arrival estimation; energy conservation; mobility management (mobile radio); probability; telecommunication network topology; 5G SCN; active base station reduction; base station sleep mode; blocking probability; cell death; cell division; cell migration; direction-of-arrival; dynamic traffic conditions; energy saving; energy-efficient 5G ultrasmall-cell networks; information exchange overhead reduction; no-topology management; topology management scheme; traffic loads; Base stations; Bismuth; Computer architecture; Power demand; Quality of service; Signal to noise ratio; Topology;
Conference_Titel :
Globecom Workshops (GC Wkshps), 2014
DOI :
10.1109/GLOCOMW.2014.7063554
