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affic load, is not larger than 4%, which means that the MPR-TC strategies do not have a strong impact on data delivery rates. However, we can observe that by increasing the MPR parameter from

MPR=1 to MPR=3, the data delivery rate tends to decrease, this may be due to the increased communication overhead produced by the increased number of nodes chosen as MPRs, which advertise topology information.

Graph 4-4: Topology knowledge under different Traffic rates

Chapter 5

Trust is a social good to be protected just as much as the air we breathe or the water we drink. When it is damaged, the community as a whole suffers; and when it is destroyed, societies falter and collapse.

Bok, 1978,

TRUST MODEL FOR OLSR

In chapter 4 some of the issues of OLSR have been discussed, for which a reliability model has been presented. Certain issues like precious node battery, dynamic topology, message flooding and computational overhead etc are addressed. Although it will not address all the issues encountered in OLSR routing, but of course it will help in overcoming some of the issues. Our trust model is not only applicable to OLSR Protocol but also can be extended to other routing protocols.

5.1 Aspects of Trust:

Trust is a common phenomenon. We as humans would not even be able to face the complexities of the world without resorting to trust, because it is with trust that we are able to reason sensibly about the possibilities of everyday life.

For example, we leave the house every morning trusting that we will be able to return, and will not end up in hospital because of some accident that we trust will not happen.

Trusting behavior occur when an individual perceives an ambiguous path, the result of which could be good or bad, and the occurrence of the good or bad result is contingent on the actions of another person; finally, the bad result is more harming than the good result is beneficial. If the individual chooses to go down that path, he can be said to have made a trusting choice, if not, he is distrustful.
Trust implies some degree of uncertainty as to outcome.
Trust implies hopefulness or optimism as to outcome.

Trust is thus strongly linked to confidence in some thing, be it the person to be trusted, the environment, or whatever it is that the desirable outcome is contingent upon. The concept of trust is choosing to put ourselves in another’s hands, in that the behavior of the other determines what we get out of a situation.

In societies, trust is a fact of everyday life. Societies would no more exist without trust.

We have got so many examples to show that trust plays a vital role in societies. That we get up at all in the morning is a sign of the trust we have in society and our environment.

5.2 The Proposed Trust Model:

Our trust model is an adaptation of the trust model by Marsh (1994). It is configured for use in pure ad hoc networks. Marsh’s model computes situational trust in agents based upon the general trust in the trustier and in the importance and utility of the situation in which an agent finds it-self.

General trust is the trust that one puts upon another based upon the previous experiences in different situations. Utility is considered similar to knowled本论文由英语论文网提供整理，提供论文代写，英语论文代写，代写论文，代写英语论文，代写留学生论文，代写英文论文，留学生论文代写相关核心关键词搜索。