DocumentCode :
2118472
Title :
On the trade-off between handover failure and small cell utilization in heterogeneous networks
Author :
Moon, Jung-Min ; Jung, Jungsoo ; Lee, Sungjin ; Nigam, Anshuman ; Ryoo, Sunheui
Author_Institution :
DMC R&D Center, Samsung Electronics, Korea
fYear :
2015
fDate :
8-12 June 2015
Firstpage :
2282
Lastpage :
2287
Abstract :
To enhance the performance of a heterogeneous network, where many small cells are deployed in a macro cell, we consider two technical challenges. First, seamless handover between the same or different types of cells should be supported with a low handover failure rate. Second, small cells should use their radio resources as much as possible to maximize a cell splitting gain. It was well known that there is a trade-off between the low handover failure rate and the high small cell utilization. To find a better operation considering such a trade-off, we propose a state-dependent handover decision algorithm. In the proposed scheme, a user sets a “state” for each small cell, and performs a “state transition” to distinguish between macro-to-small and small-to-macro handovers, and then uses suitable handover parameters for each handover type. Through simulation, we observe that the proposed scheme can reduce the handover failure rate significantly without degrading the small cell utilization and the throughput experienced by the user.
Keywords :
Handover; Interference; Macrocell networks; Rayleigh channels; Signal to noise ratio;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communication Workshop (ICCW), 2015 IEEE International Conference on
Conference_Location :
London, United Kingdom
Type :
conf
DOI :
10.1109/ICCW.2015.7247521
Filename :
7247521
Link To Document :
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