14-06-2012, 05:03 PM
detection of selfish nodes in networks using coop MAC protocol
ABSTRACT
The nodes which are selfish in nature can be recognized before the transmission of the data such that the data can be transmitted to the destination very fastly and without any data loss.
CoopMAC has been recently proposed as a possible implementation of cooperation protocols in the medium access control (MAC) layer of a wireless network. However, some nodes may refrain from cooperation for selfish purposes, e.g. in order to save energy, in what is called selfish behavior or misbehavior. This protocol violation worsens other nodes’ performance and
can be avoided if other nodes detect and punish (e.g. banning from the network) misbehaving nodes.
INTRODUCTION
PROJECT OVERVIEW
This project is to use the CoopMAC protocol that has been recently proposed as a possible implementation of cooperation protocols in the medium access control (MAC) layer of a wireless network.
PROJECT DESCRIPTION
The node which are selfish in nature can be detected before the transmission of the data . This shall be done such that the nodes which are selfish in nature can be unused for the data transmission and hence the data can be transmitted to the destination by using the nodes which are unselfish in nature. The selfish nodes can be detected by getting acknowledgements from each of the nodes and hence the data shall be transferred by using the unselfish nodes.
PROBLEM DEFINITION
Existing System:
Existing System:
Nodes perform misbehavior so that they can save energy which worsens other nodes performance .This can be avoided if other nodes detect and punish (e.g. banning from the network) misbehaving nodes. In the existing system, this was detected by fading and interference but could not give best results.
Proposed System:
In the proposed system, we use automatic repeat request (ARQ) protocol is used, which detect misbehaving nodes. We make two approaches, either based on the uniformly most powerful (UMP) test or on the sequential probability ratio test (SPRT) are considered. These two techniques are characterized and compared in terms of their average detection delay and resulting network performance.
FEASIBILITY STUDY:
The next step in analysis is to verify the feasibility of the proposed system. “All projects are feasible given unlimited resources and infinite time“. But in reality both resources and time are scarce. Project should confirm to time bounce and should be optimal in there consumption of resources. This place a constant is approval of any project.
Feasibility has applied to Digital Tune pertains to the following areas:
• Technical feasibility