Paper Info
Title
Multi-Criteria Handover Using Modified Weighted TOPSIS Methods for Heterogeneous Networks.
Abstract
Ultra-dense small cell deployment in future 5G networks is a promising solution to the ever increasing demand of capacity and coverage. However, this deployment can lead to severe interference and high number of handovers, which in turn cause increased signaling overhead. In order to ensure service continuity for mobile users, minimize the number of unnecessary handovers and reduce the signaling overhead in heterogeneous networks, it is important to model adequately the handover decision problem. In this paper, we model the handover decision based on the multiple attribute decision making method, namely Technique for Order Preference by Similarity to Ideal Solution (TOPSIS). The base stations are considered as alternatives, and the handover metrics are considered as attributes to selecting the proper base station for handover. In this paper, we propose two modified TOPSIS methods for the purpose of handover management in the heterogeneous network. The first method incorporates the entropy weighting technique for handover metrics weighting. The second proposed method uses a standard deviation weighting technique to score the importance of each handover metric. Simulation results reveal that the proposed methods outperformed the existing methods by reducing the number of frequent handovers and radio link failures, in addition to enhancing the achieved mean user throughput.
Year
DOI
Venue
2018
10.1109/ACCESS.2018.2846045
IEEE ACCESS
Keywords
Field
DocType
Heterogeneous networks,handover,small cells,interference,MADM,weight,TOPSIS
Base station,Decision problem,Weighting,Computer science,Computer network,Ideal solution,Heterogeneous network,Throughput,TOPSIS,Handover
Journal
Volume
ISSN
Citations 
6
2169-3536
2
PageRank 
References 
Authors
0.38
0
2
Name
Order
Citations
PageRank
Mohanad Alhabo141.42
Li Zhang282.53