Introduction to the project:
A network is said to be a group of computers or people connected together to share information for their business purpose. In a computer terminology network can be defined as a group of computers connected logically for information sharing such as file printing, multitasking etc. these networks may be wired or wireless. A wireless network is with the no physical connection between node to node.
The number of devices that can be connected wirelessly in a wireless network is increased greater. Therefore packet flooding on a wireless network would create high processing power by aggregation of processing power of the nodes. In my project I have aimed towards the packet flooding on a wireless networks with new layer called SMAC (sensor medium access control) layer. This layer contains all the required services for packet flooding implementation.
Before going to the aim and objectives of the project, we have to know about the MANET (mobile ad-hoc network). MANET is an autonomous system of mobile nodes.
For construction of MANET all the needed is a node which is willing to receive the data. A MANET infrastructure is less approach to a wireless local area network (WLAN/WLL) etc. it has a self configuration of network nodes and routers wirelessly. Therefore a rapid change topology takes place in packet traffic. Different types of MANETS are used for a packet delivery.
AIM & OBJECTIVES:
The main aim of our project is to research on wireless ad-hoc networks flooding using SMAC layer.
AD- hoc networks are the networks which can be used for a particular purpose.
The main objective of our projects is as follows:
- To investigate about Ad- hoc networks and MANET
- To understand the various routing protocols involved in a Ad-hoc networks.
- To research about the packet flooding on a wireless sensor networks.
For a packet flooding in a wireless network first we have to know about what is Ad-hoc network and a MANET.
On doing the research work, it is known that MANET (mobile Ad-hoc network) is a kind of an wireless Ad-hoc network which can be usually routable at the top link layer. 802.11 wi-fi wireless network was the best example for a MANET.
The packet flooding on a network can be done by using many routing techniques which include routing protocols. Therefore it focus on our objective points, which is understanding various routing protocols. So, it is advisable to know various protocols involved. Routing is a mechanism which is used to find the path in between two nodes or entities. The different routing protocols are RIP (routing information protocol); IGRP( interior gateway routing protocol); OSPF(open shortest path first); BGP(border gateway protocol). Therefore our main objective is advisable for our research work.
After having an idea of all above we can able to research on our main objective i.e. packet flooding on a wireless sensor networks. In this I am going to research on wireless Ad-hoc routing protocols in order to packet flooding. It splits into sub-topic research work on prospective protocols, reactive protocols and hybrid protocols.
As this my masters level project I split into these main above objectives for my research work. This will help in clear understanding of packet flooding concept in detail.
The main reason for choosing this particular topic as my dissertation work was to overcome the disadvantages of a present wireless networks to overcome problems in the present wireless communication and by knowing the importance of proposed network for packet flooding and its benefits over existing networks. This was an interesting experience to do research work on a wireless network.
It is expensive to maintain cables over an entire network and even it causes to failure for some reasons. Therefore we switched towards a wireless network. In a wireless network a network can be extended to places. Some of the major problems with the wireless are total throughout output will be effected when the multipath propagation, pathless are very big problems in a wireless medium.
My research work moved me towards the mobile wireless communication networks due to its properties such as extended coverage. The Ad-hoc networks used as a single access point for few users can access network. The communication can be done even when no infrastructure exists.
The routing protocols are very interesting in a Ad-hoc networks. This driven towards choosing this project work and where as and this project also related to my masters course. Such as proactive protocol, which are used to make request to their neighbor in the network? The reactive protocols make the route when they have the data to send. Where as the hybrid protocol follows the both proactive as well as reactive protocols. These routing protocols are very interesting ones to understand.
Coming to the literature survey Bekim cilkyu, Aksenti Granrov proposed the Ad-hoc grid layer technique in order to implement grid systems. This layer contains all the services for a grid implementation.
The service discovery in a mobile Ad-hoc networks, MANET base on grid by Hau-Wen, Tsai, Tzung-shi chen, Member IEEE and chih-ping chu, member IEEE service discovery is an important operation for usability of mobile Ad-hoc networks (MANETs). Because of their dynamic nature, no traditional solutions to service discovery were adopted here. My research work presents protocol based architecture in an Ad-hoc network. The geographical area of a MANET was delivered into 2-D logical grid. By this scheme we can efficiently decrease the cost of discovery and register and this mode case to large networks.
Research is defined as an activity which involves in a search for information. According to the knowledge gained by me, research is done for choosing a particular field this can be done by different research methodologies and justifying the methodology which suits to our work with some questionnaire. Methodologies in research are classified into two. They are
- qualitative method
- quantitative method
Both the qualitative and quantitative methods having their individual merits and demerits.
The research work can be undertaken to exploring an idea of a work, to probe an issue and to solve a problem. The methodology can be justified if it suits and meets all the requirements of the desired selected topic undergoes a survey then qualitative methodology can be opted. Here in my dissertation work I have selected the qualitative methodology as my work undergoes a simulation.
The qualitative analysis can be defined as to manage, shaping and making sense of an unstructured information. It involves in a clear study and analysis of the particular work. I opted qualitative methodology since my work includes a full study and analysis. Where as qualitative method does not, quantitative methodology does not refers to large number of people/ events. A qualitative method was chosen in my work, since my work involves on a case study simulation work. In my current dissertation work the questions used are
Semi Structured Interviews and surveys are used in this project for most of data collection. More of which are analyzed in detail below.
Semi structured interviews:
The respondents for the interviews required to process technical know how and as a result the network administrators are the main participants.
The interview begins with the set off pre determined topics of discussion and further data is collected depending on the responses received. The data thus collected is reviewed, analyzed and grouped against specific characteristics.
Existing data in this field is collected and analyzed to get a clear overview of ad hoc networks and the issues that accompany them. The sources include past academic research papers, articles, journals, government publications and past research thesis.
In this project an OPNET simulator is used for a network design and for simulation to obtain results.
- What are the effects of problems arrised in a wireless network?
- What are the reasons that driven towards a mobile Ad-hoc networks?
Generations of this methodology:
The current methodology can be generalized by answering following factor.
Is it possible that current methodology is unique to the circumstance?
To overcome this situation a simulation process can be done where we can get results for each and every section i.e. the results can tell the mobile Ad-hoc network can be able for packet flooding.
The answers for above two questions can be done by our selected methodology some of the problems involved in a wireless network are multipath propagation, pathloss, interference and a limited frequency spectrum.
The current methodology helps to do research work on the above mentioned areas and also helps to find out the reasons that cause driving towards an Ad-hoc for packet flooding. The extended coverage and all research work can be helpful here.
Therefore we can say that the methodology we have chosen is justified for our project “packet flooding using SMAC layer”.
Since my engineering I got used to perform tasks by creating a To-do list. With the application of project planning table, I have presented the project plan. The table shows the allocation of time on weekly basis to do a particular task. I have marked the weeks on which I completed and pursued a specific task in the below table. The table even shows my future time distribution and by when I would complete the divided tasks. By following the below plan I am confident that the final submission would be done well within the deadline.
Collecting Existing Data: By refering to the past information regarding the project like journals, articles, thesis, publications, books, contemporary issues, I have collected the data that would be useful in the preparation of the project. I have identified the scope of the project and tried to collect the required data accordingly.
Selecting participants for interviews: In order to perform the interview, I willl choose ten technical engineers who has a good knowledge in this particular arena.
Constructing questions for the interviews: I will be constructing the questionnaire by which it could be explained about my research. Questions will be prepared by taking the help of supervisor.
Scheduling the interview: After completing the questionnaire, I will approach the selected candidates for their responses. I will try to mail them or meet them personally and collect the responses.
Conducting the interviews: The interviews would be carried and held based on the availability of the candidates. I will make sure all the responses are collected in two weeks after completion of the questionnaire.
Compile and segregate the data collected: Once all the responses are collected from the technical engineers, analysis will be done on them. I would seggregate the responses accordingly.
Network simulation design: Once the questionnaire part is done, I will start to construct the network design by using a simulator.
Obtaining results from simulation: Later after running the network simulator, results would be collected.
Evaluating results: All the collected results will be then observed and analyzed to come to a conclusion.
Drafting final report: Once the practical work is done, I will start drafting the work which is carried to get to the conclusion.
Editing Final Report: After the completion of the draft, by including all the required criteria to complete the dissertation, I will make necessary changes.
Preparing Final Report: Once everything is done, I will do proof-reading before submitting. I would also take my supervisor’s help, to review the final submission.