Roaming Management Research Articles

Management by roaming and self-efficacy and their impact on the excellence of hotel service: An applied study

This research investigates the type and the significant relationship between roaming management and self-efficacy and its impact on excellence in providing hotel service. To achieve this, the applied approach was adopted through A questionnaire was designed and developed for the collected data. It has consisted of three parts. The firsts section included nine questions to measure the dimensions of management by roaming. The second section includes nine questions to measure the effectiveness of the two employees. The last section includes 12 questions to measure the excellence of the hotel service. The research sample included 43 employees' responding to this survey to measure the two independent variables—also, 45 of the guests responding to this survey to measure the adopted variable. The final results indicated there is a significant direct correlation between management, roaming, and self-efficacy, which has an impact on the excellence of hotel service. The most important recommendations of this study were: achieving excellence in providing hotel service requires a work environment that supports senior management in the field of work. In addition to its ideal investment of workforce potentials and enabling them to provide the best performance, Through that, the research provides what qualifies them towards the excellence in their services to the customer

BlockRoam: Blockchain-based Roaming Management System for Future Mobile Networks

Mobile service providers (MSPs) are particularly vulnerable to roaming frauds, especially ones that exploit the long delay in the data exchange process of the contemporary roaming management systems, causing multi-billion dollars loss each year. In this paper, we introduce BlockRoam, a novel blockchain-based roaming management system that provides an efficient data exchange platform among MSPs and mobile subscribers. Utilizing the Proof-of-Stake (PoS) consensus mechanism and smart contracts, BlockRoam can significantly shorten the information exchanging delay, thereby addressing the roaming fraud problems. Through intensive analysis, we show that the security and performance of such PoS-based blockchain network can be further enhanced by incentivizing more users (e.g., subscribers) to participate in the network. Moreover, users in such networks often join stake pools (e.g., formed by MSPs) to increase their profits. Therefore, we develop an economic model based on Stackelberg game to jointly maximize the profits of the network users and the stake pool, thereby encouraging user participation. We also propose an effective method to guarantee the uniqueness of this game's equilibrium. The performance evaluations show that the proposed economic model helps the MSPs to earn additional profits, attracts more investment to the blockchain network, and enhances the network's security and performance.

واقع ممارسة الإدارة بالتجوال لدى العمداء فی جامعة المجمعة من وجهة نظر الوکلاء ورؤساء الأقسام The reality of practicing Roaming management among Deans at Majmaah University from the perspective of department leaders and heads

هدفت الدراسة إلى التعرف على واقع ممارسة الإدارة بالتجوال لدى العمداء في جامعة المجمعة، وفي سبيل تحقيق ذلک استخدمت الباحثة المنهج الوصفي المسحي، کما تم استخدام الاستبانة کأداة لجمع بيانات الدراسة من مجتمعها المتمثل في جميع الوکلاء ورؤساء الأقسام في المرکز الرئيس لجامعة المجمعة بمحافظة المجمعة والبالغ عددهم (63) فردا، وقد استجاب منهم (56) فردا، أي بنسبة (88.9%). وقد توصلت الدراسة للعديد من النتائج أبرزها: أن درجة ممارسة الإدارة بالتجوال لدى العمداء في جامعة المجمعة جاءت عالية، کما أوضحت النتائج أن هناک العديد من الصعوبات التي تواجه القيادات الجامعية لممارسة الإدارة بالتجوال لدى العمداء في جامعة المجمعة أبرزها: کثرة المهام الموکلة للعميد وضغوط العمل، قله الوعي بأهمية الجولات التفقدية، إضافة إلى ما سبق فقد أظهرت النتائج أن بعض المقترحات التي من الممکن أن تساهم في تعزيز ممارسة الإدارة بالتجوال لدى القيادات الجامعية بجامعة المجمعة أبرزها: إلمام العمداء بالأساليب الإشرافية الحديثة المبنية على الشفافية، اختيار الکفاءات القيادية المتفهمة لدورها في تطوير بيئة العمل، کما بينت النتائج أنه لا توجد هناک فروقا ذات دلالة إحصائية بين متوسطات استجابات أفراد الدراسة حول درجة ممارسة الإدارة بالتجوال لدى العمداء في جامعة المجمعة باختلاف متغير طبيعة العمل، وسنوات الخبرة في مجال العمل، في حين أظهرت النتائج أن هناک فروقا ذات دلالة إحصائية عند مستوى (0.01) بين متوسطات استجابات أفراد الدراسة حول درجة ممارسة الإدارة بالتجوال لدى العمداء في جامعة المجمعة باختلاف متغير الدورات التدريبية، وذلک لصالح أفراد الدراسة ممن حصلوا على ثلاث دورات فأکثر، ولصالح ممن حصلوا على دورتين بالنسيبة للصعوبات، وفي الأخير فقد أوضحت النتائج أنه لا توجد هناک فرواقا ذات دلالة إحصائية بين متوسطات استجابات أفراد الدراسة حول المقترحات التي من شأنها تعزيز ممارسة الإدارة بالتجوال لدى العمداء في جامعة المجمعة باختلاف متغير الدورات التدريبية الخاصة في مجال مدخل الإدارة بالتجوال. The current study generally aimed at identifying the reality of practicing roaming management by the deans of Majmaah University. Accordingly, the researcher used the descriptive survey methodology in order to achieve the study objective. Moreover, the questionnaire was used as a study tool to collect study data from the targeted population represented by all department leaders and heads at the main center of Majmaah University in in Majmaa Governorate. The study population was 63 individuals, of who 56 responded, that is (88.9%).The study revealed several findings, including: The degree to which the deans of Majmaah University are practicing roaming management at Majmaah University was high. The finding also showed that there are many difficulties encountered by the university top management while the deans are practicing roaming management at Majmaah University, most prominently: the plenty of tasks assigned to the university deans, work pressures, lack of awareness of the importance of supervisory roaming. Moreover, the study findings stated some of the proposals that could contribute to enhance the roaming management practice among university leaders at Majmaah University, most notably: deans should be aware of modern supervisory methods which are based on transparency, selecting leadership competencies who have deep understanding of their role in the development of work environment. Besides, the study resutls showed that there are no statistically significant differences between the mean responses of the study participants about the degree of practicing roaming management by the deans at Majmaah University, in terms of the variables of the work nature and years of work experience in the field. While the study results showed that there are statistically significant differences at the level (0.01) between the mean responses of the study participants about the degree of practicing roaming by the deans at the Majmaah University according to the variable of training courses in favor of the participants who have completed three courses or more, and in favor of those who have completed two courses with regard to the difficulties. Finally, the findings showed that there are no statistically significant differences between the mean responses of the study participants about the proposals that would promote the practice of roaming management among the deans of Majmaah University, in terms of the special training courses in the field of roaming management.

RSSI Prediction in WiFi Considering Realistic Heterogeneous Restrictions

Received Signal Strength Indicator is an indication of power level being received by a wireless device. This parameter for Wireless Fidelity has never been standardized, so any manufacturer implements it measuring as best they know how. This is a problem because different scenarios can be found based in several elements like: the particular Wireless Fidelity Network Interface Card implementation, the driver, the operating system and software monitoring implementation. This makes the utilization of the Received Signal Strength Indicator to implement higher level functions in wireless networks (like roaming management or localization of terminals) be a headache in realistic scenarios. This heterogeneity of devices, drivers… makes that the application of the Received Signal Strength Indicator be not general. In this paper we present the comparison of our new model of Received Signal Strength Indicator prediction in several realistic and heterogeneous scenarios. The experimental results indicate that we obtain in general, better results than the other models.

A Context-Aware Seamless Interoperator Roaming Management Framework in 4G Networks

The roaming services with the predefined security associations among the entities in various networks are especially complex. We propose a novel architecture to support future context-aware interoperator roaming services throughout 4G networks by using Roaming Coordinators. We design a secure context management model for the practical use of Smart Cards in the secure roaming services. Our architecture solves the interoperator roaming management problems while minimizing the processing overhead on the mobile nodes.

Roaming and service management in public wireless networks using an innovative policy management architecture

Nowadays, public wireless local area networks (WLANs), commonly called hotspots, are being largely deployed by WISPs (Wireless Internet Service Providers) as a means of offering ubiquitous Internet access to their customers. Although a substantial number of solutions have been proposed to improve security, mobility and quality of service on the wireless area, access network management which is mandatory remains a very significant concern.This paper describes RSM-WISP, a new management architecture designed for WISPs to facilitate the implementation and management of the services they offer at the access side of the WLAN, and to manage roaming contracts between WISPs. Our architecture is based upon the policy-based management principles as introduced by the IETF, combined with more intelligence at the network edge. RSM-WISP adopts an architecture that is composed of two elements: a WISP management center (MC) that deploys policies and monitors all the WLANs, and a programmable access router (CPE) located in each WLAN. The CPE ensures service enforcement, service differentiation (access to different service levels) and guarantee, user access management, and dynamic WLAN adaptation according to the user's SLA (service level agreement). It also permits automatic service updates according to the user's requirements. Concerning roaming management, this is achieved on the CPE through multiple service provider support capabilities. This approach provides WISPs with a simple, flexible and scalable solution that allows easy service deployment and management at the access. This management architecture has been implemented, tested and validated on the 6WINDGate routers.