scholarly journals Heterogeneous wireless networks with mobile devices of multiple interfaces for simultaneous connections using Fuzzy System

PLoS ONE ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. e0247142
Author(s):  
Jorge Amaro de Sarges Cardoso ◽  
Fabio Pereira Ferreira da Silva ◽  
Tássio Costa de Carvalho ◽  
José Jailton Henrique Ferreira ◽  
Nandamudi Lankalapalli Vijaykumar ◽  
...  
Keyword(s):  
Wireless Networks ◽  
Fuzzy System ◽  
Heterogeneous Wireless Networks ◽  
Academic Community ◽  
Network Simulator ◽  
Multiple Interfaces ◽  
Exponential Increase ◽  
And Performance ◽  
Dual Interface

With the exponential increase in heterogeneous wireless networks today, there has been a growing interest from the academic community for issues related to handover problems. The main objective of this paper is to evaluate the quality of service and performance of a device with a dual interface that connects simultaneously to two heterogeneous networks with no competition in the exchange of packets between them. It is a proposal to solve the mitigation of handover impacts. The tool used for evaluation was the Network Simulator 2. The results showed a better use of the band in comparison to the scenario using a traditional mobile device.

scholarly journals A Proposal for Routing Protocol for FANET: A Fuzzy System Approach with QoE/QoS Guarantee

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Jorge Souza ◽  
José Jailton ◽  
Tássio Carvalho ◽  
Jasmine Araújo ◽  
Renato Francês
Keyword(s):  
Routing Protocol ◽  
Fuzzy System ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Network Simulator ◽  
Access Technology ◽  
Qos Guarantee ◽  
Efficient Communication ◽  
New Type

The flying ad hoc network (FANET) has emerged as an alternative access technology for regions that have no fixed infrastructure or are hard to reach. This new type of network is composed of devices called unmanned aerial vehicles (UAVs) that communicate with each other, but there is no specific routing protocol to FANET applications that allows efficient communication between these devices. This paper proposes a FANET adaptive routing protocol based on the fuzzy system. The validation of the FANET adaptive protocol was performed through simulation using Network Simulator version 2 (NS-2) and, it was assessed by quality of service (QoS) and quality of experience (QoE) metrics.

A Network Selection Algorithm with Parallel Transmission Based on MADM

2014 ◽  
Vol 556-562 ◽  
pp. 4606-4611 ◽  
Author(s):  
Li Na Zhang ◽  
Qi Zhu
Keyword(s):  
Wireless Networks ◽  
Quality Of Service ◽  
Heterogeneous Wireless Networks ◽  
Network Selection ◽  
Selection Algorithm ◽  
Decision Matrix ◽  
Parallel Transmission ◽  
User Throughput ◽  
Selection Algorithms

At present, most of researches on network selection algorithms are focused on single access. To support seamless mobility and provide better quality of service in heterogeneous wireless networks, this paper proposes a network selection algorithm with parallel transmission based on MADM. In the algorithm, we firstly determine all available wireless networks and consider every subset of these networks as a network scheme. Then we obtain aggregation attributes of every scheme and determine the alternative network schemes. Finally, we build the decision matrix of multiple attributes and determine the optimal scheme by using GRA. Simulation results show that the proposed algorithm can obviously improve user quality of service, improve user throughput, reduce power consumption and price cost per bit.

scholarly journals Mobility and quality of service across heterogeneous wireless networks

2005 ◽  
Vol 47 (2) ◽  
pp. 203-217 ◽  
Author(s):  
Andrea Calvagna ◽  
Aurelio La Corte ◽  
Sabrina Sicari
Keyword(s):  
Wireless Networks ◽  
Quality Of Service ◽  
Heterogeneous Wireless Networks

scholarly journals A Fuzzy Preprocessing Module for Optimizing the Access Network Selection in Wireless Networks

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Faisal Kaleem ◽  
Abolfazl Mehbodniya ◽  
Kang K. Yen ◽  
Fumiyuki Adachi
Keyword(s):  
Wireless Networks ◽  
Wireless Network ◽  
Proper Time ◽  
Heterogeneous Wireless Networks ◽  
Access Network ◽  
Wireless Access ◽  
Vertical Handoff ◽  
Heterogeneous Wireless Network ◽  
Multiple Interfaces ◽  
Access Network Selection

A heterogeneous wireless network is characterized by the presence of different wireless access technologies that coexist in an overlay fashion. These wireless access technologies usually differ in terms of their operating parameters. On the other hand, Mobile Stations (MSs) in a heterogeneous wireless network are equipped with multiple interfaces to access different types of services from these wireless access technologies. The ultimate goal of these heterogeneous wireless networks is to provide global connectivity with efficient ubiquitous computing to these MSs based on the Always Best Connected (ABC) principle. This is where the need for intelligent and efficient Vertical Handoffs (VHOs) between wireless technologies in a heterogeneous environment becomes apparent. This paper presents the design and implementation of a fuzzy multicriteria based Vertical Handoff Necessity Estimation (VHONE) scheme that determines the proper time for VHO, while considering the continuity and quality of the currently utilized service, and the end-users' satisfaction.

scholarly journals Voice Quality Estimation in Wireless Networks

2015 ◽  
Vol 63 (6) ◽  
pp. 2179-2185
Author(s):  
Petr Zach ◽  
Martin Pokorný ◽  
Jiří Balej
Keyword(s):  
Wireless Networks ◽  
Computer Network ◽  
Voice Quality ◽  
Research Area ◽  
Network Simulator ◽  
Quality Estimation ◽  
Voice Service ◽  
Voice Data ◽  
The Impact

This article deals with the impact of Wireless (Wi-Fi) networks on the perceived quality of voice services. The Quality of Service (QoS) metrics must be monitored in the computer network during the voice data transmission to ensure proper voice service quality the end-user has paid for, especially in the wireless networks. In addition to the QoS, research area called Quality of Experience (QoE) provides metrics and methods for quality evaluation from the end-user’s perspective. This article focuses on a QoE estimation of Voice over IP (VoIP) calls in the wireless networks using network simulator. Results contribute to voice quality estimation based on characteristics of the wireless network and location of a wireless client.

Simulation of Vertical Handoff Algorithms for Heterogeneous Wireless Networks

2012 ◽  
pp. 62-84
Author(s):  
Alexander Garcia D. ◽  
Andres Navarro C. ◽  
Adriana Arteaga A. ◽  
Fabio G. Guerrero ◽  
Enrique Stevens-Navarro
Keyword(s):  
Computer Simulation ◽  
Wireless Networks ◽  
Programming Languages ◽  
Communication Networks ◽  
Heterogeneous Wireless Networks ◽  
General Purpose ◽  
Vertical Handoff ◽  
Network Simulator ◽  
First Case

Computer simulation is an important tool for the study and analysis of communication networks. In the case of simulation of Vertical Handoff Algorithms (VHAs) for heterogeneous wireless networks there are two approaches: using a network simulator or using general purpose programming languages. The objective of this chapter is to present and compare both approaches, by means of two study cases. The first case considers the use of network simulator NCTUns (National Chiao Tung University Network Simulator), while the second case considers the use of MATLAB.

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