A Proactive VHD Algorithm in Heterogeneous Wireless Networks for Critical Services

Lozano-Garzón, Carlos; Ortiz-Gonzalez, Nicolas; Donoso, Yezid

doi:10.15837/ijccc.2013.3.468

Cited by 9 publications

(4 citation statements)

References 17 publications

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“…Each of them works in a different way, but they all select networks by comparing different options based on multiple attributes and choosing the network that best satisfies the conditions. According to Lozano-Garzon et al [10], the results of each are almost the same.…”

Section: Literature Reviewmentioning

confidence: 81%

Handover Decision-Making Algorithm for 5G Heterogeneous Networks

et al. 2023

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The evolution of 5G small cell networks has led to the advancement of vertical handover decision-making algorithms. A mobile terminal (MT) tends to move from one place to another and, as the 5G network coverage is small, user network access will change frequently and lead to a high probability of unnecessary handover, which is a waste of network resources and causes degradation of service quality. This paper aims to reduce the number of unnecessary handovers in 5G heterogeneous networks by proposing a handover decision-making algorithm that integrates the dwelling time prediction technique and Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS). The proposed algorithm reduces the number of unnecessary handovers by estimating the connection time to a small cell network using the dwell time prediction technique. The TOPSIS evaluates the network quality and chooses the best network based on user preference. The result shows that the proposed handover algorithm reduces the number of unnecessary handovers to small cell networks in high-speed scenarios. It also saves the network connection cost by up to 27.51% compared with the TOPSIS-based handover algorithm. As for throughput achievement, the proposed algorithm yields an improvement of 5.12%. The proposed algorithm significantly reduces the number of unnecessary handovers in the high-speed scenario while fulfilling user preferences.

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Section: Literature Reviewmentioning

confidence: 81%

Handover Decision-Making Algorithm for 5G Heterogeneous Networks

et al. 2023

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“…handover decision), proposing new procedure that improves the handover decision and consequently the user experience when performing handover using VoIP applications in heterogeneous networks. Handover in heterogeneous network can be performed using different protocols and this has been the subject of several studies [1] [5] [6]. At the network layer, Mobile IP (MIP), defined in [8], has been most frequently selected [8] [18].…”

Section: Mobility Managementmentioning

confidence: 99%

Adaptive probe-based congestion-aware handover procedure using SIP protocol

Libnik

Švigelj

2015

INT J COMPUT COMMUN

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Wireless technologies have evolved very rapidly in recent years. In the future, operators will need to enable users to use communication services independently of access technologies, so they will have to support seamless handovers in heterogeneous networks. In this paper we present a novel adaptive congestion aware Session Initiation Protocol (SIP) based procedure for handover in heterogeneous networks. In the proposed algorithm the handover decision is based in addition to signal strength, also on target network congestion status, which is tested during the conversation. As SIP protocol was used, the proposed procedure is independent of access technologies. For performance evaluation of proposed procedure we developed a purpose built simulation model. The results show that the use of the proposed adaptive procedure significantly improves the QoE of VoIP users, compared to reference scenario, in which only signal strength was used as the trigger for handover decision.

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“…Considering the aforementioned problems, we addressed our study about the Always Best Connected (ABC) problem in heterogeneous wireless networks (HWN) in [16]. In this work we designed a proactive Vertical Handover Decision Algorithm (VHO-DA) based on user preferences, QoS requirements, and network conditions.…”

Section: Introductionmentioning

confidence: 99%

A Multi-Objective Approach for a Multihoming Load Balancing Scheme in WHN

Lozano-Garzón

Molina

Donoso

2016

INT J COMPUT COMMUN

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Abstract:The telco operators face up to challenges related to the need of ensuring a quality of service to the user in a planning, maintenance and resource allocation in their complex networks. These challenges are directly related with the need to ensure an user's service with a good level of quality in a highly dynamic environment in terms of changes in the radio access technologies, growth in the number of mobile users, technical requirements of the new services and applications, and the possibility to connect to different networks at the same time, among others. In this paper, we address the problem of the user's service allocation into the different feasible networks in order to reduce the network overloading. We present a multihoming load balancing scheme that allows the re-allocation of services according to their QoS requirements and the availability of network resources. We propose a multi-objective optimization model of this problem together with an evolutionary algorithm to solve it. Through simulation in different scenarios, we show that our algorithm is efficient, sensitive, scalable and provides optimal solutions.

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A Proactive VHD Algorithm in Heterogeneous Wireless Networks for Critical Services

Cited by 9 publications

References 17 publications

Handover Decision-Making Algorithm for 5G Heterogeneous Networks

Handover Decision-Making Algorithm for 5G Heterogeneous Networks

Adaptive probe-based congestion-aware handover procedure using SIP protocol

A Multi-Objective Approach for a Multihoming Load Balancing Scheme in WHN

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