Effect of Failures on Stock Price of Telecommunication Service Providers

2021 ◽  
Author(s):  
Masahiro Hayashi
Keyword(s):  
Stock Price ◽  
Service Providers ◽  
Telecommunication Service

scholarly journals Traffic model for the interconnection of networks and operators using MPLS-TE

2017 ◽  
Vol 26 (44) ◽  
pp. 85 ◽  
Author(s):  
Carlos Mario Restrepo ◽  
Octavio José Salcedo-Parra ◽  
Juan Manuel Sánchez-Céspedes
Keyword(s):  
Traffic Engineering ◽  
Service Providers ◽  
Global Model ◽  
Traffic Model ◽  
Telecommunication Service ◽  
Model Output ◽  
New Model ◽  
Traffic Models ◽  
Wolfram Mathematica ◽  
Study Case

In this paper, the main features of MPLS Traffic Engineering are presented to illustrate how telecommunication service providers use them to create interconnections between each other in order to offer telecom services satisfying QoS commitments. Based on previous traffic models, a new model, which deals with traffic queue balancing for different Classes of Service, and for a provider using another provider´s network is presented. The model output shows that carrying another operator’s traffic may increase delays in an undesirable manner, forcing the carrier to increase the serving rate of LSRs until Utilization is below 60 %. In order to validate the model, a number of network scenarios are implemented in the Wolfram Mathematica 10.1 Study Version, based on study case configurations of an MPLS network. The total global model is useful for future implementation of test-beds of interconnected providers under an MPLS environment.

scholarly journals The Geometric Brownian Motion of Indosat Telecommunications Daily Stock Price During the Covid-19 Pandemic in Indonesia

2021 ◽  
Vol 2084 (1) ◽  
pp. 012012
Author(s):  
Tiara Shofi Edriani ◽  
Udjianna Sekteria Pasaribu ◽  
Yuli Sri Afrianti ◽  
Ni Nyoman Wahyu Astute
Keyword(s):  
Brownian Motion ◽  
Stock Price ◽  
Service Providers ◽  
Main Idea ◽  
Geometric Brownian Motion ◽  
Government Policies ◽  
Percentage Error ◽  
Price Movement ◽  
Data Movement ◽  
Total Data

Abstract One of the major telecommunication and network service providers in Indonesia is PT Indosat Tbk. During the coronavirus (COVID-19) pandemic, the daily stock price of that company was influenced by government policies. This study addresses stock data movement from February 5, 2020 to February 5, 2021, resulted in 243 data, using the Geometric Brownian motion (GBM). The stochastic process realization of this stock price fluctuates and increases exponentially, especially in the 40 latest data. Because of this situation, the realization is transformed into log 10 and calculated its return. As a result, weak stationary in variance is obtained. Furthermore, only data from December 7, 2020 to February 5, 2021 fulfill the GBM assumption of stock price return, as R t 1 * , t 1 * = 1 , 2 , 3 , … , 40 . The main idea of this study is adding datum one by one as much as 10% – 15% of the total data R t 1 * , starting from December 4, 2020 backwards. Following this procedure, and based on the 3% < p-value < 10%, the study shows that its datum can be included in R t 1 * , so t 1 * = − 4. − 3 , − 2 , … , 40 and form five other data groups, R t 2 * , … , R t 6 * . Considering Mean Absolute Percentage Error (MAPE) and amount of data from each group, R t 6 * is selected for modelling. Thus, GBM succeeded in representing the stock price movement of the second most popular Indonesian telecommunication company during COVID-19 pandemic.

scholarly journals Analysis of Mobile Service Providers Performance Using Naive Bayes Data Mining Technique

2018 ◽  
Vol 8 (6) ◽  
pp. 5153
Author(s):  
M. A. Burhanuddin ◽  
Ronizam Ismail ◽  
Nurul Izzaimah ◽  
Ali Abdul-Jabbar Mohammed ◽  
Norzaimah Zainol
Keyword(s):  
Data Mining ◽  
Data Science ◽  
Service Providers ◽  
Telecommunication Service ◽  
Mobile Service ◽  
Business Growth ◽  
Data Mining Technique ◽  
R Language ◽  
Mining Technique ◽  
Industry Standard

Recently, the mobile service providers have been growing rapidly in Malaysia. In this paper, we propose analytical method to find best telecommunication provider by visualizing their performance among telecommunication service providers in Malaysia, i.e. TM Berhad, Celcom, Maxis, U-Mobile, etc. This paperuses data mining technique to evaluate the performanceof telecommunication service providers using their customers feedback from Twitter Inc. It demonstrates on how the system could process and then interpret the big data into a simple graph or visualization format. In addition, build a computerized tool and recommend data analytic model based on the collected result. From prepping the data for pre-processing until conducting analysis, this project is focusing on the process of data science itself where Cross Industry Standard Process for Data Mining (CRISP-DM) methodology will be used as a reference. The analysis was developed by using R language and R Studio packages. From the result, it shows that Telco 4 is the best as it received highest positive scores from the tweet data. In contrast, Telco 3 should improve their performance as having less positive feedback from their customers via tweet data. This project bring insights of how the telecommunication industries can analyze tweet data from their customers. Malaysia telecommunication industry will get the benefit by improving their customer satisfaction and business growth. Besides, it will give the awareness to the telecommunication user of updated review from other users.

scholarly journals LEGALITY OF “BORROW ME CREDIT” SERVICES OFFERED BY TELECOMMUNICATION COMPANIES: A SHARI’AH PERSPECTIVE

2021 ◽  
Vol 28 (2) ◽  
pp. 621-640
Author(s):  
Isa Abdur-Razaq Sarumi ◽  
Abdulraheem Abdulwahid Yusuph ◽  
Mu’az Yusuf Ahmed
Keyword(s):  
Islamic Law ◽  
Service Providers ◽  
Telecommunication Service ◽  
Legal Research ◽  
Extra Time ◽  
Secondary Sources ◽  
Telecommunication Companies ◽  
Ab Inito

Telecommunication service providers are known to provide various benefits for airtime packages. Different packages have been introduced in order to satisfy consumer needs. The nexus between service providers and consumers are guided by terms and conditions. Under Islamic law, any condition stipulated by the parties, which involves riba is rejected ab inito and renders the transaction voidable. Therefore, this article seeks to examine the Airtime Credit Service by service providers such as extra time package known as ‘borrow me credit’ in order to determine whether it is a Shariah-compliant transaction or otherwise. The study adopts doctrinal legal research by using primary and secondary sources of Islamic law such as Qur’an, Sunnah. The study also relies on textbook, journals, and service providers’ websites. The study reveals that the use of the word ‘borrow’ in the package has triggered polemical discourse among the Islamic financial jurists. The study reveals that, although the word ‘borrow’ is used, the intention of service providers is to sell the airtime on credit sale. The article clarifies the juristic discourse of the sale based on Islamic law of contract. It  recommends some clarifications on the form and structure of the sale and concludes that it is allowed for Muslims to buy airtime through the package.

The Interplay of Agents in Improvising Telecommunication Infrastructures' Services to Rural Community of South Africa

2015 ◽  
pp. 208-225
Author(s):  
Sharol Mkhomazi
Keyword(s):  
South Africa ◽  
Rural Communities ◽  
South African ◽  
Service Provider ◽  
Rural Areas ◽  
Service Providers ◽  
Telecommunication Network ◽  
Structuration Theory ◽  
Telecommunication Service ◽  
Network Service Provider

The deployment of telecommunication infrastructures is a challenge in many parts of South Africa particularly in the rural areas. The challenge has impact of communities' members as they do not have network coverage for Internet in some areas. The challenge gets worse with individual telecommunication service provider. Hence there is technological proposal for sharing of infrastructure by the service providers. However, the sharing of infrastructure is not as easy as notion by many individuals and groups institutions included. The article presents findings from a study on how a South African telecommunication network service provider could deploy shared infrastructures in the country's rural communities. The sharing of infrastructure is described by the structure and actions of agents within the infrastructure sharing process. Structuration theory was employed as a lens in the data analysis. The key findings include insufficient distribution of infrastructure, ownership responsibility, competitiveness, infrastructure deployment cost, and signification of regulation.

Utilizing SMS/3G Networks for Better and Reliable Communications between Yard Cranes and Server

2011 ◽  
Vol 2 (3) ◽  
pp. 16-29
Author(s):  
C. D. Cheng ◽  
C. C. Ko ◽  
W. J. Huang
Keyword(s):  
Wireless Networks ◽  
Communication Channel ◽  
Current Practice ◽  
Service Providers ◽  
Telecommunication Service ◽  
Infrastructure Development ◽  
3G Networks ◽  
Port Operation ◽  
Reliable Communications ◽  
Set Up

In a normal port operation, yard cranes are used to move containers from one location to another for import, export or relocation purposes. In order to locate the positions of containers, a database is set up in the office server to store the current locations of existing containers within the yard. Whenever the Rubber Tyred Gantry (RTG) crane operator moves a container around, the database has to be updated via a program installed in the Vehicle Mounted Terminal (VMT) fitted to the crane. This requires the establishment of a communication channel between the server and the crane VMT. The current practice is to make use of wireless networks, even though these are susceptible to attenuation and interferences in rugged surroundings as in a port. This paper describes and explores another alternative, that of using 2G/SMS for short messages and 3G networks for real-time scenarios. These methods are more reliable as major telecommunication service providers normally expend substantial resources in infrastructure development. They also provide a cheaper alternative in terms of reducing maintenance expenses.

ACCESSING PSTN INTELLIGENT NETWORK FUNCTIONS FOR A DATA CALL

2016 ◽  
Vol 78 (6-3) ◽  
Author(s):  
Baptist Kalya Heshani ◽  
Kottage Amila U ◽  
Gunawardena Tilani
Keyword(s):  
Service Provider ◽  
Service Providers ◽  
Telecommunication Service ◽  
Core Network ◽  
Intelligent Network ◽  
Internet Service ◽  
Initiation Phase ◽  
Triple Play ◽  
Voice Data ◽  
Regulatory Commission

As Telecommunication has become a basic requirement of the today’s society there had been a vast increase of competition between the telecommunication service providers. Every service provider tries to cater the customers the best services for the lowest charges. Customers have the expectation of receiving the most recent technologies for the cheapest cost. Triple play (voice, data, content) is becoming everyone’s requirement today in communication. Voice over IP (VoIP) comes handy in considering Triple play. The design presents in the paper is an approach developed for a company that holds an Internet Service Provider (ISP) license from the Telecommunications Regulatory Commission of Sri Lanka (TRCSL) for island-wide coverage. The said company is a subsidiary of the leading Telecommunication provider of the nation. The problem faced here by the subsidiary is finding the capital cost to provide this highly exclusive IN (Intelligent Network) services to the customers in their initiation phase to cope with the existing competition. As an optimum solution, came up with the idea of accessing existing legacy PSTN core network of the leading telecommunication service provider which enhances most of the highly exclusive services. The system presented in the paper is a small model of an existing network that allows online billing facility for data calls as an IN facility.

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