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Self-organizing Network Architectures and Protocols

The capacity of mobile ad hoc networks becomes a constraint due to the mutual interference of concurrent transmissions between nodes. The mobility of nodes adds another dimension of complexity in the communication process. Several works in ad hoc network studied the impact of mobility on the network capacity and suggested virtual backbone network to solve the issues in mobility management. The mobility model represents the The mobility models for mobile ad hoc networks include:

» Random walk
» Random waypoint
» Random direction mobility
» Reference point group mobility model
» Gauss-Markov
» Manhattan grid model
» Disaster area model
» Random street model

Solution in NS2
i) In NS2, mobility models such as Random way point, Random direction, Random walk and group mobility model can be modeled.
ii) The performance of the different routing protocols such as AODV, DSR and DSDV under different mobility models can be evaluated using NS2.
iii) Highly dynamic mobile adhoc network can be created using the above mentioned mobility models in order to evaluate the performance of the routing protocols under the dynamic nature of topology.
iv) Random way point mobility model can be generated using the ns~\indep-utils\cmu-scen-gen\ file is available in ns2 for the input parameters total nodes, simulation time, pause time, network area and speed.

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Posted by on January 29, 2016 in Uncategorized


How to Compile Hadoop Applications using IntelliJ IDEA

The hadoop uses IntelliJ IDEA (Intelligent Java IDE) tool for building  the hadoop packages.

Steps to compile sample program in IntelliJ Idea

1) Downloading the IntelliJ IDEA tool from following link

2) Create hadoop application with IntelliJ IDEA

(i) Start IntelliJ IDEA.

(ii) Click Create new project

(iii) The project type is set to Java. Browse and select the Java SE  Development Kit 7 (JDK) installation folder on project SDK. Click Next.

(iv) Set the project name and project location and then click finish.

(v) In the Project Explorer, right-click the src folder. Select New –> Java Class.

3) Configuring Module Dependencies and Libraries

(i) Select File->Project Structure.

(ii) Click on Modules under “Project Settings.”

(iii) Select the Dependencies tab then click on the + at the right of the  screen. Select JARS or directories.

4) Run the project

(i) Select Run->Edit Configurations

(ii) Click on Application under “Run/Debug Configurations”

(iii) Select the Configuration tab then give the class name in “Main class” and set the input and output directory in “Program arguments” tags.

5) Compile the Hadoop Application

(i) Select Run-> Run

(ii) The outputs are generated in output directory with a file called _SUCCESS and part-r-00000.

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Posted by on January 29, 2016 in Uncategorized