signaling for multimedia-i

8/9/2019 Signaling for Multimedia-I

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Signaling for Multimedia Conferencing in Stand-AloneMobile Ad Hoc Networks

Abstract:

Mobile ad hoc networks (MANETs) are infrastructure-less and can be set up

anywhere, anytime. They can host a wide range of applications in rescue

operations, military, private, and commercial settings. Multimedia conferencing is

the basis of a wealth of "killer applications that can be deployed in MANETs. Some

examples are audio/video conferencing, multiplayer games, and online public

debating. Signaling is the nerve center of multimedia conferencesit establishes,

modifies, and tears down conferences. This paper focuses on signaling for

multimedia conferences in MANETs. We review the state of the art and propose a

novel architecture based on application-level clusters. Our validation employed SIP

as the implementation technology and OPNET as our simulation tool. Our clusters

are constructed dynamically and the nodes that act as cluster heads are elected

based on their capabilities. The capabilities are published and discovered using a

simple application-level protocol. The architectural principles and the clustering

operations are discussed. Our SIP-based implementation is also presented along

with the performance evaluation.

2. Modules:

The Project Modules are as follows,

Connector Module

Signaling Module

Cluster to Node Generation Module

Cluster Identification

Node Generation

Path Identification


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3. Module Description:

3.1 Connector Module:

This is the module which is used by the clients to login and searchesthe network available in the area. It connects to the available network and starts

streaming of data between the users.

3.2 Signaling Module:

This is the module which is used to get the list of connected clients in

the networks. From the list of clients it selects a client and sends the signal to that

client. When the client is connected it sends acknowledgment.

3.3Cluster to Node Generation Module:

This module is used to gets the selected the network and finds the

clusters in the network. It translates the clusters into nodes and group them into

path. It finds a fine path from the network.


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4. System Requirements Specification:

The following are the SRS to run the Project.


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5. Project Requirements:

5.1 Software Requirements:

Operating System : Windows 2000, Windows XP

Programming Language : JAVA,J2ME

IDE : Netbeans 6.7.1

5.2 Hardware Requirements:

Processor : 1GHz

RAM : 512 MB

Mobile Kit : GPRS enabled Mobile, Datacable.

6. Existing System:

In Existing system there is a lack of signaling which does not

establish a connection in MANETs. Hence the clients in the network fail to get the

server communication. It also requires a separate medium to transfer the data to

the destination.

7. Proposed System:

The objective of this work is to explore SIP based

implementation with performance evaluation to strengthen the signal for

multimedia conferences in MANETs. All the clients in the network will get server

signaling which results in reliable communication. Using the AdHoc network

mechanism this system does not require any medium to transfer.


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Data Flow Diagram

1. Connector Module

2. Signaling Module

Client logins

Search

for the

network

Connected to

the network

Send and

receive

data

Gets the list of

connected

clients

Select a

client

Sends signal

to the client

Gets

acknowledgem

ent


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3. Cluster to Node Generation Module

Gets the

selected

network

Finds the

intermediate

clusters in

network

Translate the

clusters into

nodes

Group them

into a path

Finds a fine path


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Data Flow Diagram

Client gets into the

wireless network

Connectedwith the

network

Finds other clients

in the network

Identification of

intermediate

clusters

Translation of

clusters into nodes

Grouping the

nodes

Finds a fine path

Sends signal

to clients

Gets

acknowledgement


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Use case Diagram

Client

Connects via wireless network

Connected to the network Finds available networks

Select a network

Find intermediate c lusters

Change the clusters to nodes

Group the nodes and create path

Network

Sends signal

Get acknowledged


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Activity Diagram

ClientNetwork

Connects via wireless

mechanism

Finds the

network

Find the intermediate

clusters

Change clusters

to nodes

Group the

nodes

Finds fine path

Signal the client

Get

acknowledged


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Sequence Diagram

Client Find Clusters Find Path NetworkSignaling the

client

connects via wireless network

Finds the available clusters in network

Change the clusters into nodes

Group nodes and finds the path

connected to the network

Gets reply

Signal the client in network

Gets acknowledged


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Collaboration Diagram

Client Find

Clusters

Find Path

Network Signaling the

client

1:2:3:

4:

5:

6:7:

8:


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Class Diagram

signaling for multimedia-i

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