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ABSTRACT
Now a days we can use internet by using Wi-Fi in the mobile phones too. But, mobile phones with Wi-Fi are very expensive. But Bluetooth being common and efficient way of transferring of data, can as well be used to gain internet access. Using Bluetooth Hotspot we can use internet, on mobile phones
with Bluetooth, from other phones which will host their own internet connection. This will make
available the provision of accessing the internet for a large percentage of mobile phone users even if
they do not have GPRS connection or Wi-Fi facility.
INTRODUCTION
1.1 Overview
Wi-Fi hotspots are very common now days. Laptops and PDAs use these hotspots to access the internet as these devices have Wi-Fi facility built into it. But mobile phones do not have Wi-Fi facility in them.So it is a better idea to create a Bluetooth hotspot using which mobiles with Bluetooth can access the internet.
Bluetooth hotspot application allows a smart phone to host a Bluetooth hotspot which can be accessed by other phones with Bluetooth. By this we are making the access of internet on mobile phone available cheaply to majority of mobile phone users who do not have a Wi-Fi service in their phones. The hosting smart phone can get the internet connection from a Wi-Fi server or via GPRS of their own service provider. The client phone need not spend any money to access the internet made available to him by the host phone.
The host will set up an internet connection and share the service with the public. Interested client can request the host to receive access to the service. The host will accept or reject the connection. If accepted the client can surf the internet using the hosts internet connection free of cost.
LITERATURE SURVEY
2.1 History of Hotspot
A hotspot is a site that offers Internet access over a wireless local area network through the use of a router connected to a link to an Internet service provider. Hots0pots typically use Wi-Fi technology. Hotspots may be found in coffee shops and various other public establishments in many developed urban areas throughout the world.
Public access wireless local area networks (LANs) were first proposed by Henrik Sjödin at the NetWorld+Interop conference in The Moscone Center in San Francisco in August 1993. Sjödin did not use the term hotspot but referred to publicly accessible wireless LANs.
2.2 Bluetooth
Bluetooth is a short range wireless communication standard operating in the 2.4 GHz hand, designed to connect mobile phones, laptops, PDAs and other portable devices . It is a cable replacement standard for a Personal Area Network (PAN). Its compact, light and affordable features allow people to travel conveniently, reducing the problems of cable connections which take up luggage space and get tangled quickly.
Bluetooth deploys a Frequency Hopping Spread Spectrum (FHSS) technique to improve its immunity from interference. This ensures that data packets are not lost and consequently, increases the performance of the network.
2.3 Bluetooth Technology Overview
The basic components of any Bluetooth application consist of the following items:
• Stack initialization
• Device management
• Device discovery
• Service discovery
• Service registration
• Communication
2.4 Challenges for Bluetooth Hotspot
The execution of such a heavy application on the mobile phone effectively and efficient facilitation of data transfer between two mobile phones.
Also we have to enable the application to access the internet connection on one mobile phone from any possible source so we have to include options for choosing from a list of possible sources for a mobile phone and all that sources should be able to share their internet connection through the Bluetooth with the client‟s mobile device.
Also the communication between the client and the server over the Bluetooth is a challenge. Both the mobile phones will have to be synchronized so that the client can send data in the form of page requests and it can in turn receive data in the form of browser readable pages from the internet through the server.
SYSTEM ANALYSIS
3.1 Existing System
A. Wi-Fi
Most widely used wireless technology today, is Wi-Fi. Wi-Fi hotspots are deployed in shopping malls, cafes, public libraries etc. It gives internet access to Wi-Fi enabled laptops or to Wi-Fi enabled mobile phones for free or at a low cost to the ones in that hotspot area.
A wireless network uses radio waves, just like cell phones, televisions and radios do. In fact, communication across a wireless network is a lot like two-way radio communication.
B. Bluetooth Hotspot service using a PC and a dongle
There are two major components of the entire system. The first component is the Bluetooth hotspot network which consists of many machines in a client server configuration.
The Bluetooth network is essentially a collection of many Bluetooth devices like mobile phones and PDAs. A „*server” connects the entire network to the internet acting as a gateway to the “clients”.
The second part of the network is the Bluetooth service manager. This is mainly the software used to manage the users of that particular system. This system takes care about the login and authentication. The customer enters his/her user details to gain access to the service. Then the authentication process validates the users. User details are stored in a database with access details like a username and password.
A centralized database will maintain the details of all users registered to the system. Once the user enters the hotspot, a simple “login” facility will enable the user to access the Internet.
3.2 Proposed system
When a mobile phone user wants to access internet through Bluetooth, the internet request is send to the GPRS and then the GPRS forward it to the MOBILE or a Network Access Point to access internet. When the request is completed it is send to the Bluetooth device connected to the MOBILE and send back to the
mobile browser or other applications.
SYSTEM REQUIREMENTS
4.1 System requirements
4.2.1 Hardware Requirements
Processor : Pentium IV 3.0GHz or above
RAM : 1GB
Output Device : Colour Monitor
Input Device : Keyboard
Pointing Device : Mouse
4.2.2 Software Interface
Operating System : Microsoft Windows 8
Software Platform : Eclipse IDE Configured for Android Development
SYSTEM IMPLIMENTATION
6.1 Modular Discription
The architecture of Bluetooth Hotspot consists of the following modules:
1. Server Mobile:
a. Internet Browser
b. Wi-Fi card/ GPRS card
c. Bluetooth
2. Client mobile:
d. Internet Browser
e. Bluetooth
3. Internet
A. Server Mobile:
The server mobile is the mobile which hosts the internet service for the client to use it.
i. Internet Browser:
The internet browser on the server mobile is used by the server himself to access the internet. The user types a domain name into the address bar in the browser and the page request for that page is sent by the browser to the Wi-Fi/GPRS card. The browser also displays the page received from the World Wide Web server, through Wi-Fi/GPRS card, as a response to his request.
ii. Wi-Fi/GPRS card:
The server mobile accesses internet with the help of Wi-Fi or GPRS. It uses Wi-Fi card or GPRS card for the same. These cards forward the requests made by the browser to the World Wide Web server via the link established between the mobile and the internet. It also accepts the response received from the World Wide Web server and recognizes it as response to the servers request or clients request and accordingly forwards the page to the browser or to the Bluetooth respectively.
iii. Bluetooth:
The Bluetooth on the server side does the work of accepting page requests from the connected clients Bluetooth and forwards this request to the Wi-Fi/GPRS card. Also it sends the response received from the card back to the clients Bluetooth. This interconnection of Bluetooth requires pairing of the Bluetooth devices to establish the trust of the client with the server.
B. Client Mobile:
The client mobile is the mobile which uses the service of Bluetooth hotspot provided by the server. The client accesses the internet with the help of Bluetooth hotspot.
i. Internet Browser:
The client after pairing his device with servers mobile, uses the internet browser to access the internet. The client enters the URL into the address bar in the browser. The browser makes a page request for the URL and sends the request to the Bluetooth of his own device. The browser also displays the page on the device when the Bluetooth responds with the requested page.
ii. Bluetooth:
The client pairs its Bluetooth device with the servers mobile using Bluetooth. The page request made by the browser is received by the Bluetooth and it sends this request to the servers Bluetooth over established Bluetooth connection between client and the server. The Bluetooth also receives the page sent by the servers Bluetooth and forwards the page to the browser of this device.
C. Internet:
The internet is the World Wide Web which receives all the page requests from the server via Wi-Fi/GPRS card. It analyzes the request and responds to the server with appropriate response in the form of a web page.
CONCLUSION
With the use of internet so rampant in these days the access of internet must be simplified and made common. Bluetooth Hotspot is the perfect way to realize this need. Bluetooth Hotspot already exists for use in computers and in laptops. But to carry around a laptop everywhere to access free internet on mobile phone is a lot of effort. Also a Bluetooth dongle should be used. That is why Bluetooth Hotspot will be of a great help. It is easily installed on to the mobile phone and does not require any extra hardware for it to run. This will help a lot of people who do not use internet so frequently but require it on the go.
The modules and design for this project have been conceptualized and the hardware and software requirements for development and usage have been analyzed and documented successfully.