MINIMIZING FILE DOWNLOADING TIME IN STOCHASTIC PEER TO PEER NETWORKS
ABSTRACT
The peer-to-peer (P2P) file sharing applications are becoming increasingly popular and account for more than 70% of the interneta, cs bandwidth usage. Measurement studies show that a typical download of a file can take from minutes up to several hours depending on the level of network congestion or the service capacity fluctuation. In this paper, we consider two major factors that have significant impact on average download time, namely, the spatial heterogeneity of service capacities in different source peers and the temporal fluctuation in service capacity of a single source peer. We point out that the common approach of analyzing the average download time based on average service capacity is fundamentally flawed. We rigorously prove that both spatial heterogeneity and temporal correlations in service capacity increase the average download time in P2P networks and then analyze a simple, distributed algorithm to effectively remove these negative factors, thus minimizing the average download time. We show through analysis and simulations that it outperforms most of other algorithms currently used in practice under various network configurations.
TABLE OF CONTENTS
Title page - - - - - - - - i
Certification - - - - - - - - ii
Approval page - - - - - - - - iii
Dedication - - - - - - - - iv
Acknowledgement - - - - - - - v
Abstract - - - - - - - - - vi
Table of contents - - - - - - - vii
CHAPTER ONE
1.0 INTRODUCTION - - - - - - 1
1.1 Statement of the problem - - - - 2
1.2 Purpose of the study - - - - - 3
1.3 Aims and objectives - - - - - 4
1.4 Scope of study - - - - - - 5
1.5 Limitations of the study - - - - - 6
1.6 Definition of terms. - - - - - - 7
CHAPTER TWO
2.0 LITERATURE REVIEW - - - - - 9
CHAPTER THREE
3.0 METHOD FOR FACT FINDINGS AND DETAILED DISCUSSIONS ON THE SUBJECT MATTER - -16
3.1 Methodologies for fact-finding - - - - 16
3.2 Discussion - - - - - - - 17
CHAPTER FOUR
4.0 FUTURES, IMPLICATIONS AND CHALLENGES OF THE SUBJECT MATTER FOR THE SOCIETY-22
4.1 Futures - - - - - - - - 22
4.2 Implications - - - - - - - 24
4.3 Challenges - - - - - - - 26
CHAPTER FIVE
5.0 SUMMARY,RECOMMENDATION AND CONCLUSION 28
5.1 summary- - - - - - - - 28
5.2 Recommendations - - - - - - 28
5.3 Conclusion - - - - - - - 29
References - - - - - - - 30
CHAPTER ONE
1.0 INTRODUCTION
Peer-to-peer (P2P) technology is heavily used for content distribution applications. The early model for content distribution is a centralized one, in which the service provider simply sets up a serve and every user downloads files from it. In this type of network architecture (server-client), many users have to compete for limited resources in terms of bottleneck bandwidth or processing power of a single serve. As a result, each user may receive very poor performance. From a single user perspective, the duration of a download session, or the download time for that individual user is the most often used performance metric.
P2P technology tries to solve the issue of scalability by making the system distributed. Each computer (peer) in the network can act as both a server and a client at the same time. When a peer complete downloading some files from the network, it can become a server to service other peers in the network. It is obvious that as time goes on, the service capacity of the entire network will increase die to the increase in the number of servicing peers. With this increasing service capacity, theoretical studies have shown that the average download time for each user in the network is much shorter than that of a centralized network architecture in ideal cases (2), (3). In other words, users of a P2P network should enjoy much faster download.
1.1 STATEMENT OF PROBLEMS
Owing to:
i) The difficulties people face in locating a web application workshop.
ii) Urgent need to contact a web application workshop at emergency time.
iii) Improper management of information/data in a web application workshop.
iv) Difficulties people encountered when ordering for web application workshop tools/equipment.
v) Time wasted in contacting a web application workshop
The need arise for the development of download wizard for simultaneous download.
1.2 PURPOSE OF STUDY
The main purpose of this study is to put to an end the difficulties people encountered in a minimizing file downloading time in stochastic peer to peer network workshop. This is actualized by download wizard for simultaneous downloads which is user friendly and interactive. By the time this software is designed and implemented, the difficulties encountered. By the time this software is designed and implemented, the difficulties encountered with manual method of contacting and receiving information will be eliminated.
1.3 AIMS AND OBJECTIVES
The aims and objectives of this project are listed below:
· To develop software called download wizard for simultaneous download that will replace the manual method of processing information.
· To develop, promote, and provide adequate and efficiently coordinated web application workshop services at reasonable rates.
· To maintain an efficient system of collection, sorting and delivery of web application workshop fault and solution.
· To demonstrate increased motivation to the KIAMOTORS workers.
· To provide a means of contacting web application workshops at any given time.
· To eliminate the error involved with the manual method of processing data/information in a web application workshop.
· To save the time wasted with manual method of processing data/information and items.
· To establish and maintain minimizing file downloading time in stochastic peer to peer network workshop services.
1.4 SCOPE OF STUDY
This project work s narrowed to KIAMOTORS Enugu. It deals with the development of minimizing file downloading time in stochastic peer to peer network to help in the transferring of data/information and web application workshop tools.
1.5 LIMITATION OF STUDY
Owing to the scope of this project work as stated above, the project work is limited to Minimizing file downloading time in stochastic peer to peer network, KIAMOTORS Enugu.
It is important to mention here that time was a major constraint in the course of fact findings.
It is also wise to mention here that some information we need to work with was not collected because of the unwillingness of the staff review such information.
1.6 DEFINITION OF TERMS
Ø Computer: This is an electronic machine that can accept; handle and manipulate data by performance arithmetic and logic operations without human intervention usually under the control of programmes.
Ø Database: Is a collection of information that is related to a particular subject or purpose.
Ø Information: This is data that have been processed, interpreted and understood by the recipient of the message or report.
Ø Internet: Internet is a collection of computer networks that operate to common standards and enable the computes and the program they run to communicate directly.
Ø Web application workshop: A skilled worker who is employed to repair or operate machinery or engines.
Ø Staff: This is a person working in an establishment.
Ø Server: This is a process that provides requested services for clients.
Ø Software: This is a logical written program that hardware uses to perform it’s operation.
Ø Storage: This is the process through which data/information, procedures and people.
Ø Website: Is a space or location customized by a company, organization or an individual which is locatable within an address on the internet.
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