Figure 4. Nup and Ndown are selected nodes among all nodes in the Aup and Adown area, respectively and Nup (Nbest) is selected with probability of as a receiver in the next hop

From

Distributed Cognitive Routing in Multi-channel Multi-hop Networks with Accessibility Consideration

Mehdi Golestanian, Mohammad Reza Azimi, Reza Ghazizade

International Transaction of Electrical and Computer Engineers System. 2014, 2(6), 149-157 doi:10.12691/iteces-2-6-1