A User-Centric Model for Evaluating & Validating User-Perceived Quality of Service (QoS) in Wireless Network
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Computing, Information Systems, Development Informatics & Allied Research Journal
A wireless network allows computers to share printers, files or an internet connection without any wires between them. Quality as a generic performance measure can have many meanings. Quality of Service (QoS) represents the set of those quantitative and qualitative characteristics of distributed multimedia system necessary to achieve the required functionality of an application. Until recently QoS from a network perspective has dominated research in Wireless Network. While the network approach is not the recommended one to evaluate and improve the user experience, the user-perceived approach remains attractive as it affords tangible values (reliability, satisfaction, efficiency) that can be accurately measured, quantified and tested continually given the latest robot technology available. This research proposed a user-centric model for evaluating and validating the quality of service of wireless network from users’ perspective using satisfaction, efficiency and reliability as measurement parameters. Analysis of research findings using the proposed model based on questionnaire responses shows that users measure of QoS is directly proportional to bandwidth size. The higher the size of the bandwidth, the higher the user’s satisfaction while using the network. Satisfaction is inversely proportional to rate of loss, that is, the higher the loss, the lower the satisfaction of the user. Interestingly, the results show that there were no significant within- subject differences in the perception of network performance as a function of physical environment (indoors versus outdoors). However, significant differences between subjects on this variable highlight that users bring with them their own subjective perceptions and attitudes that affect their user-experience.
Ogude, U.C & Onyejegbu, L. N. (2014). A User-Centric Model for Evaluating & Validating User-Perceived Quality of Service (QoS) in Wireless Network. Computing, Information Systems, Development Informatics & Allied Research Journal, 5 (2) June 2014. pp 37-52.