wireless Internet telephony full report
#1

[attachment=12609]
INTRODUCTION
Internet Telephony can be defined as real time voice or mult-imedia communication over the internet or more generally over packet switched network. two telecommunication standardizations bodies are now used IP (session initiation protocol ) as basis to make wireless Internet telephony a reality in the context of third generation wireless telecom- munication network.Millions of highly mobile end-user who are frequently change their location will access Internet telephony services using wide
range of wireless devices . Advances service anything that goes beyond two party call . It may or may not be related telephony like call diversion , call transfer, blend telephony etc.In wireless telephony end-user need to have to access these services from any terminal or from anywhere .this requirement
is called universal access.
This paper presents the design ,the implementation , & the evaluation of an advanced service architecture for wireless Internet telephony.
The architecture relies on mobile agent that act as folder & carries services . Carrying services mobile agent raises the issue of agent upgrading when end-user subscribes or unsubscribes to service .mobile agent is software program whose main characteristics is ability to move from node to node on network during execution . The mobile agent provide universal access requirement with an efficient manner . They can relocate to new devices being used by end-user or the SIP proxy H.323 gatway that is close to the end-user. A mobile agent that we call MSA (mobile service agent) &there are also some important elements like Service Creation Unit , Service Management Unit & S - ervice Publication Unit .The SCU handles the creation of new services . The SMU manages user subscription creates and maintains MSAs. The service publication unit is the interface of the system to the external world and can be simple web server . our architecture tackles the issue by proposing and eval -uating two novel schemes :agent swapping and on-the fly updating . Althogh wireless Internet Telephony is our prime targrt ,the architecture is ,to a large extent ,independent of the lyiny network and therefore applicable to Internet telephony in general.
2. ARCHITECTURE COMPONENTS: There are four phases in the service life cycle: creation, deployment utilization and withdrawal respectively Service Creation unit, Service management Unit, Mobile Service Agent & Service publication Unit. Service maintenance takes place over the network without any human interaction.
2.1 Mobile Service Agent: MSA needs an agent execution environment (AEE) on every node they might move to. AEE is running agent platform where Mobile Agent can move and provide encryption
Facility to the MSA including a Java Virtual Machine (JVM).
For end user the MSA provide following features:
• locally starting and stopping service
• Universal access requirement
The MSA supports features for:
• Communication with system unit and other MSAs during subscription change ,using mark up language tag.
• Dynamically reconfiguring itself devices and when the set of services it contains changes.
• Making transparent to end-user all the mechanism subjected to subscription handling i.e. agent/service replacement , dynamic update .
• Authenticating each MSA before communication with it.
• agent swapping
• dynamic replacement and dynamic update
2.1.1 Implementation: MSA is implemented in JAVA on top of Voyager ,a mobile agent platform .the MSA implements a Java class loader. Java is interpreted programming language that implements dynamic linking that enables software programs to resolve class at only invocation time .it is possible to download a class over the network the first time class is called .the MSA maintains a list of service it carries along with the location of their files .it downloads each file once on every device or server it roam to. There are no multiple file download. The MSA on the inside described in following figure .
the particular instances carries service pointer .the MSA also transport customized data .it is configured with service activation and termination logic .user can further modify and expand the logic . Regarding data privacy communication between MSA and components ,application want to transmit private data outside occur in encrypted form .the MSA has a classloader class so it can dynamically page link classes over the network . It has a small list of authentication request-reply challenge to authenticate SMU and MSA it communicate with. The agent hosted on AEE that take care of security and reliability issues.
MSA on the inside
There are two possible destination for an MSA .the agent can more to a server or to an end-user device .when it moves to device ,the MSA display a graphical interface through which the user can schedule service execution times ,start and stop services .the same interface enable him to page link service and modify their execution logic through startup arguments .the graphical interface is a rectangular pane with service names as pointer for starting, stopping and schedule the service . The MSA implements a small message passing facility limited to a few primitive such as swap etc.
MSA Message
This message is asking the agent to swap all of its services and data with an agent location IP address “location” .the particular agent is listening or parsing on port 6300.
2.1.2 Evaluation and Interface: the following figure illustrates possible action of MSA once it deployed on the network node or a user device (e.g. palmtop, cellular phone). All the actions triggered by user interaction through a menu are valid for a MSA that reside on user device .all the other action are applicable both to an MSA on a device or a network node.
The MSA interface with the SMU SCU and other MSAs. The SMU communicate with MSA using HTTP protocol and SCU also uses HTTP to communicate with MSA .the SMU sends management information to the MSA encoded markup language.
2.2 The Service Creation Unit and the Service Publication Unit:
The SCU provides a service creation frame work .it offers a library through it is possible to develop dynamically updatable program .
service development using the SCU library be updated on the fly while they are running .the MSA carries that library while roaming ,if the library is not already available on the platform .the library has a small
size (9 KB).
The SCU is comprised of service creation environment (SCE) with and a service repository.
The SCU serves files in the SIR to MSA upon request from MSAs .the SIR contains the file of all the service that are responsible for the publication of the list of available services .this list reflects all service to which user can subscribe at given in an SCU.
The publication unit (SPU) along with the MSA is responsible for service utilization .the SPU could be secure web server or more elaborate schemes using lookup service (LUS)technology could be designed .The SPU forwards selections to the SMU .the SMU and SPU communicate through the HTTP protocol.
2.3 Service Management Unit:
The service management unit (SMU) manages subscriber and service life cycles .it functional includes:
1. MSA creation
2. MSA management
3. User profile creation and management
1. MSA Creation:
an MSA is created the first time the user subscribe to service(s) belonging to the category of service carried by that type of MSA .the SMU creates a n MSA brain and service or pointers to service.
2. MSA Management:
Beside updating ,MSA management include moving MSA to the appropriate node(or terminal) during the user inter domain and inter- domain roaming.
3.User Profile Creation & Management:
The profile is created the first time user subscribe to service(s). It contain the list of MSA that carry the service to which the user can subscribe and eventually the list of service.
Following figure covers the steps for the deployment of an MSA
Reply
#2

to get information about the topic internet telephony full report ppt and related topic refer the page link bellow

http://seminarsprojects.in/attachment.php?aid=135

http://studentbank.in/report-internet-telephony

http://studentbank.in/report-wireless-in...ull-report

http://studentbank.in/report-internet-te...y-voip-sip
Reply

Important Note..!

If you are not satisfied with above reply ,..Please

ASK HERE

So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page
Popular Searches: internet telephony full report, full project report on computer telephony integration, ppt on internet telephony, working of internet telephony pdf, technical seminar report on wireless internet telephony, ip telephony seminar report, free download ppt on internet telephony in india,

[-]
Quick Reply
Message
Type your reply to this message here.

Image Verification
Please enter the text contained within the image into the text box below it. This process is used to prevent automated spam bots.
Image Verification
(case insensitive)

Possibly Related Threads...
Thread Author Replies Views Last Post
  SAMBA SERVER ADMINISTRATION full report project report tiger 3 4,718 17-01-2018, 05:40 PM
Last Post: AustinnuAke
  air ticket reservation system full report project report tiger 16 46,803 08-01-2018, 02:33 PM
Last Post: RaymondGom
  Opportunistic Routing in Multi-radio Multi-channel Multi-hop Wireless Networks seminar class 4 3,542 17-10-2017, 02:48 PM
Last Post: jaseela123d
  LTE-ADVANCED AND 4G WIRELESS COMMUNICATIONS 1 720 15-02-2017, 12:51 PM
Last Post: jaseela123d
  An Efficient Algorithm for Mining Frequent Patterns full report project topics 3 4,714 01-10-2016, 10:02 AM
Last Post: Guest
  online examination full report project report tiger 14 42,735 03-09-2016, 11:20 AM
Last Post: jaseela123d
  Employee Cubicle Management System full report computer science technology 4 5,080 07-04-2016, 11:37 AM
Last Post: dhanabhagya
  e-Post Office System full report computer science technology 27 25,744 30-03-2016, 02:56 PM
Last Post: dhanabhagya
  college website project full report project report tiger 28 67,020 29-11-2015, 02:37 PM
Last Post: Guest
  steganography full report project report tiger 31 33,550 07-07-2015, 02:57 PM
Last Post: seminar report asees

Forum Jump: