Abstract
Remarkable wireless networks technology developments have made us to expect the realization of new applications like the advanced traffic system, the disaster prevention system, and the adhoc network system. However the resources of wireless bandwidths are not enough to use for such new applications because it is not efficient usage. Therefore, it is necessary to develop with new efficient wireless transmission methods like cognitive wireless network. In this paper, the transmission control methods in cognitive wireless network considering with cross layers including user policies are discussed. First, at the observation stage, the physical data such as user policy, electric field strength, bit error rate, jitter, latency, packet error rate, and throughput are observed. Then, at the decision stage, AHP (Analytic hierarchy process) is applied for decision making process with those parameters. Finally, the action stage, one of the suitable link is chosen and changed links and networks. In the simulation, ns2 are used for the computational results to the effectiveness of the suggested transmission methods in cognitive wireless networks.
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