Paper Info
Title
Reducing connection failure in mobility management for LTE HetNet using MCDM algorithm
Abstract
Heterogeneous network (HetNet) deploying a number of small cells in a macro cell improves network capacity as well as data rate at hot spots and cell edges. The mobility management with HetNet is challenging due to its complexity. In this paper an efficient handover scheme is proposed considering the asymmetric characteristics of macro and pico cells in HetNet. The proposed scheme ranks the candidate cells for handover using a multi-criteria decision making (MCDM) algorithm and the information on the movement of user equipment (UE). When the received power is too low, if the UE can detect a suitable target eNB of good quality, handover is triggered promptly even before the time-to-trigger window expires to avoid radio link failure. Even though the received signal from the serving cell is high enough for communication, handover is also triggered for the UE when the downlink SINR is below a threshold. The performance of the proposed scheme is evaluated by computer simulation and compared with two well-known handover algorithms with respect to the number of handovers per second, goodput per UE, and packet loss rate. The simulation with LTE-Sim reveals that the proposed scheme significantly enhances the goodput while reducing packet loss and unnecessary handover.
Year
DOI
Venue
2015
10.1109/SNPD.2015.7176222
Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing
Keywords
Field
DocType
Handover, MCDM, LTE-A, HetNet, Goodput
Mobility management,Computer science,Soft handover,Computer network,Packet loss,Algorithm,Real-time computing,User equipment,Goodput,Handover,LTE Advanced,Telecommunications link
Conference
Citations 
PageRank 
References 
1
0.37
10
Authors
4
Name
Order
Citations
PageRank
Xianda Chen1101.87
Young-ho Suh218124.12
Seung Wan Kim341.45
Hee Yong Youn4943142.78