… cognitive radio based multi-channel approaches. We present unique challenges using cognitive
radio … (f) RMCA-FR: Routing-based Multi-Channel Allocation with Fault Recovery (RMCA…

… The other destructive effect is due to the channel impairments, such as fading and noise.
Assuming that the occurrence of these event leads to packet loss (no possible recovery), then …

… , a requisite for the widely deployment of cognitive radio networks is the support of service …
called recovery table which is the set of the channel sensing orders of all cognitive radio links …

… multi-hop multi-radio multi-channel CRNs which is able to effectively manage the set of
radios and channels available in the network. A local recovery mechanism is also presented to …

… cognitive radio networks (CRNs) and ad hoc networks, and are an intriguing spectrum-aware
communication paradigm in wireless networks [… ers, disaster recovery, and high bandwidth …

… disadvantages of these multi-channel MAC protocols; Finally, the paper explores the difficulties
and the challenges of multi-channel MAC protocols design in cognitive wireless network. …

… recovery in cognitive radio networks is a unique challenge, as appearance of primary user
makes the channel … caused by frequent channel switching in multi channel environment. …

… cognitive radio networks are inherently multichannel in nature, since these networks operate
over a set of channels … channel, network recovery, and so on. DOSS also requires multiple …

… backup channel, providing a gracefully recovery… recovery. A CPE or BS must detect incumbent
operation within CDT for signal strength greater than IDT. During notification and recovery…

… channel allocation protocols accurately, we need to model the cognitive radio system using
various channel … As the error recovery method, a stop-and-wait automatic request and repeat …