Journal Articles

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    Cross-Layer Integration Approach for Improving QoS for IPv6 Based VOIP
    (iJET, 2014) Dogo, E. M.; Ahmed, A.; Olaniyi, O. M.
    Voice over IP (VOIP) is today one of the most innovative IP based Communication Technologies in the Telecommunications industry. This has made it to enjoy a high degree of success in its application in small, medium and large scale enterprises, primarily to save cost as well as leveraging on its enhance functionalities such as mobility and scalability. Despite all its successes, VOIP still faces challenges with Quality of Service (QoS) degradation. This paper proposes a cross-layer model to effectively manage interactions in the data, network and transport layers guided by tradeoff between three performance metrics that affect QoS of VOIP for an improved QoS for Voice over IPv6 (VOIPv6). The parameters taken into consideration in this proposed model are: packet loss, delay and throughput observe by the end user.
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    CUSTOMERS' INTENSION TO CHANGE MOBILE COMMUNICATION NETWORKS REGARDING QUALITY OF INFORMATION SERVICES PROVISION IN ZARIA METROPOLIS
    (I-manager's mobile Applications and Technologies, 2019-01) Hassan, Hadizatu; Goshie, Rhoda Wusa; JImada, Aisha; Oyewumi, Roseline; Amata, Sadiya
    The study was undertaken to determine customers' intension to change mobile communication networks regarding quality of information services provision in Zaria metropolis. The study raised three research questions and answers were sought to them, among which are the types of information services provided by mobile communication network to customers in Zaria metropolis, customers satisfaction level, and their intension to change network providers regarding information service quality. Survey research method was adopted for the study and data was collected from the sample of 1,269 out of the total population study of 1534. The data were analyzed descriptively using frequency tables, percentage, mean, and mode. The study revealed that customers in Zaria metropolis are provided with a wide range of information services. It was also revealed that customers are partially satisfied with the overall services of call, SMS, Internet, and SIM card service in the entire networks. It is recommended that attention should be directed toward services with lower satisfaction by setting a target using a set of benchmark of ACSI and N.C.C standard of communication services, to serve as a guide for mobile network industries and telecommunication industries to raise the satisfaction level so as to maintain the market share, maintain and generate their customers