Introducing a new method of multiple routing using the AODV algorithm for cognitive radio networks

Mahabady, Gholamreza Khaksar; Yadollahzadeh, Fereshteh
May 2014
Advances in Natural & Applied Sciences;May2014, Vol. 8 Issue 5, p496
Academic Journal
Cognitive radio networks are introduced as an efficient method in facing the problem of improper use of frequency spectrum in wireless networks. The routing issue is one of the newest and most important titles of researches in cognitive radio networks with distributed architecture (ad-hoc cognitive radio networks). The nature of the multihop with distributed architecture is one of the main reasons for decline in spectrum efficiency and route capacity in wireless networks. Using the multichannel networks and sending the information through different channels is a more efficient way of confronting this problem. Paying attention to the existed features in this type of channel caused to introduce different routes and most important of them is AODV protocol. A new method is introduced in this article for improving the routing in ADOV algorithm which is introduced by using the factors so that in order to find the best route from the beginning node to the destination node, the data traffic was studied and the best route was selected by considering the abovementioned factors. The results of the simulation show that the new algorithms in most cases are better than the classic algorithms of ADOV.


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