Open AccessReduction of Outage Probability due to Handover by Mitigating Inter‐cell Interference in Long‐Term Evolution Networks
Author(s) -
Hussein Yaseein Soubhi,
Ali Borhanuddin Mohd,
Rasid Mohd Fadlee A.,
Sali Aduwati
Publication year - 2014
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.14.0113.0947
Subject(s) - handover , throughput , soft handover , interference (communication) , computer science , computer network , node (physics) , base station , term (time) , voice over ip , quality of service , high data rate , cellular network , reuse , real time computing , telecommunications , engineering , wireless , channel (broadcasting) , physics , the internet , structural engineering , quantum mechanics , world wide web , waste management
The burgeoning growth of real‐time applications, such as interactive video and VoIP, places a heavy demand for a high data rate and guarantee of QoS from a network. This is being addressed by fourth generation networks such as Long‐Term Evolution (LTE). But, the mobility of user equipment that needs to be handed over to a new evolved node base‐station (eNB) while maintaining connectivity with high data rates poses a significant challenge that needs to be addressed. Handover (HO) normally takes place at cell borders, which normally suffers high interference. This inter‐cell interference (ICI) can affect HO procedures, as well as reduce throughput. In this paper, soft frequency reuse (SFR) and multiple preparations (MP), so‐called SFRAMP, are proposed to provide a seamless and fast handover with high throughput by keeping the ICI low. Simulation results using LTE‐Sim show that the outage probability and delay are reduced by 24.4% and 11.9%, respectively, over the hard handover method — quite a significant result.