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Quality of Service Based Cloud Computing Framework for Resource Management

Thesis Info

Access Option

External Link

Author

Ullah, Saeed

Program

PhD

Institute

Preston University

City

Kohat

Province

KPK

Country

Pakistan

Thesis Completing Year

2018

Thesis Completion Status

Completed

Subject

Computer Science

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/12866/1/Saeed%20Ullah_CS_2018_Preston_PRR.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676727817191

Similar


Cloud Computing is an evolving information technology development, deployment and delivery model consisting of a collection of interconnected and virtualized computers enabling real time delivery of services and solutions over the Internet. One of the critical concerns in this environment is the provisioning of optimal software and hardware resources to ensure a better quality of service (QoS). The classic cloud computing model where services are provided by a single vendor introduces numerous challenges. Cloud services may be interrupted due to unavailability, natural disaster or abrupt increase of the load and hence the system may not be able to provide services to thousands of customers who solely rely and pay for resources. One of the recently emerging areas in cloud computing is deployment of virtual machines across multiple clouds based on providers’ ranking. This involves benchmarking of different cloud providers, development of different techniques for selection of candidate providers, frameworks for ranking cloud providers and monitoring service level agreement (SLA) violations. Most of the existing literature is focused on employing centralized approaches for overall system ranking and monitoring, however, these approaches are not efficient for an environment where job migration and auto-scaling of virtual machines take place across cloud boundaries. The main objective of this research work is the development and evaluation of a QoS based ranking framework for IaaS computing resources across multiple clouds for resource negotiation, provisioning of physical resources, monitoring and ranking, based on job execution experience. We propose a broker enabled QoS ranking, negotiation and monitoring framework based on user level QoS requirements that determine users’ needs and utility for choosing a best-fit cloud provider among a list of candidate cloud providers. Simulation and real test-bed experimentation results suggest that our proposed framework not only gained higher profit margin but also attained more user satisfaction in terms of lower job rejection and failure rate.
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آخری ملاقات

آخری ملاقات
وہ آنسوؤں کی رحل پر۔۔۔!
مقد س اشارہ ، روشن ستارہ، دھڑکنوں کا سپارہ رکھتے ہوئے!
آرزو کے چاک پر ۔۔۔کئی اصرار تخلیق کرتے ہوئے!
نصاب سخن، جواب سوسن، گلاب و نسترن۔۔۔!
ہاتھوں کے لمس میںسموتے ہوئے!
ساتویں آسمان سے۔۔۔پہلے آسمان تک چلی آئی تھی
صدیوں کے صحیفے سے لذت معانی۔۔۔!
رفاقت زمانی، فطرت ارغوانی جیسی آیتیں پڑھتے ہوئے!
دردائیل، رومائیلؑ اور جبرائیلؑ کی منتیں کرتے ہوئے!
آنسوؤں میں ڈوبی ہوئی۔۔۔!
نور ازل ، وعدہ اول کا واسطہ دیتے ہوئے!
اذیت میں روتے ہوئے۔۔۔درد میں تڑپتے ہوئے!
اسرا رمستجاب، معصوم شباب، سارے خواب لیے روک رہی تھی
مجھے شفق زادوں کے روبرو۔۔۔!
تازیانوں کی تحریر میں۔۔۔!
قلندرانہ زمانوں کی تفسیر میں۔۔۔تکمیل جنوں کا حکم مل چکا تھا
اسباب جدائی کے ساتھ۔۔۔!
خانہ بدوشی کا صحیفہ اور وظیفہ مل چکا تھا

Effective Moral Ethics Education at the Undergraduate Level in Pakistan: The Role of Curriculum

Ethical Education is an optional subject in lieu of Islamic Studies for non-Muslim students in Pakistan from primary to undergraduate level. The main aim of this study is to discuss factors which can help to design a Moral Ethic curriculum which would assist the teachers to educate an individual with his/her own identity, to assimilated by ethical values with developed moral judgment and behavior established by an individual’s beliefs. Students can show a positive attitude towards themselves and others and be able to work together and support others. In this perspective, we also illustrated that moral education helped those people who respect social norms and behave sensibly in any situation belonged to present or future. Therefore, the main objective of this research paper is to establish the necessary elements that should be the part of an effective Moral Ethics curriculum in order to create a democratic and educational environment where everyone can respect for others’ beliefs and stop violating others’ feelings on the basis of freedom of speech.  In this study, our targeted readers were included teachers of Moral Ethics, policy makers at different levels, and curriculum developers.

Development of an Economic Model for Load Dispatch Center to Overcome Energy Crises in Pakistan

Operational functions such as to maintain a balance between demands as well as generation happens to be one of the main functions carried out by the latest energy management system.Actually, this is termed as the short-term evaluation of the maximum output of different power generation facilities to meet the required total system load at minimum possible cost without disrupting the regular power supply to the end users. The overloadswould result in the entire system’s instability and increased likelihood of blackouts. The analysis is aimed to give an overview of the economic load dispatch problem regarding abrupt variations in monthly load demand and generation throughout the year. During the research, time series analysis is conducted by using daily data regarding the generation and load demand across the country both for considering with/without losses. Real-time data for power system components of 64 power plants, 496 generating units, 17(500 KV Grid Stations), 35(220 KV Grid Stations), 900(132 KV Grid Stations) and 500/220/132 KV transmission network lines is used. Generation, demand and load management measures acquired from actual daily data associated with demand and supply, power system constraints have also been considered. The aspect of reduction in Hydel generation share during canals closure at water scar season every year has also been taken into account. Daily and monthly data figures of the last 12 years in MW/GWh is analyzed and executed by using time series analysis. Durbin Watson statistics is used to detect auto correlation; also Dickey-Fuller test was performed to check covariance stationarity. Values have been plotted in graphs to understand the monthly/annual variations in total generation and total demand. Research is aimed at improving the quality of power dispatch and deriving workable solutions. Holt-Winters forecasting techniques are applied to analyze both the actual and predicted values of generation, demand and load shed of every month at load dispatch center. It also provides monthly trend of generation, consumer demand and load shed at the same time. The methodology is based on the integrated system modeling. The main purpose is to minimize the total per unit fuel cost without violating system constraints. In case of Pakistan energy scenario, system does not have surplus energy but having short fall. By keeping in mind the current emergent situation and to cope up this problem, national utility system has been analyzed with reference to its operation problems and all the generation is grouped into fuel source wise, and then optimized. Case studies with different fuel sources have also been discussed. All the analyses are executed in MATLAB environment. An overall optimization at the national level shows that there are opportunities to better utilize low cost generators, curtailing usage of higher cost units and increasing electric power trade, considering with and without losses, which would ultimately allow customers to benefit from lower electricity prices. Finally, the thesis recommends managerial actions, structural overhaul in the existing energy system of NTDC, gas allocation to generating plants by using economic criteria, energy sector smart solutions and remedies, to make it sustainable and more versatile to cope up the current and future challenges.