In this paper, we exploit the heterogeneity of wireless channels and propose an efficient
opportunistic cognitive routing (OCR) scheme for dynamic spectrum access (DSA) networks …

Cognitive radio (CR) emerges as a key technology to enhance spectrum efficiency and thus
creates opportunistic transmissions over links. Supporting the routing function on top of …

Cognitive radio (CR) is an exciting technology to improve spectrum utilization. However,
spectrum availability can change very fast due to primary user's activity, which makes most …

Designing an appropriate routing metric in cognitive radio networks (CRNs) is a challenging
problem. In a multi-hop CRN, both spectrum handoff (quantified by channel availability time) …

In this paper, cognitive routing coupled with spectrum sensing and sharing in a multi-
channel multi-hop cognitive radio network (CRN) is investigated. Recognizing the spectrum …

Cognitive radio being a ubiquitous technology enhances the spectrum efficiency by
providing opportunistic transmissions over channels to support the routing function in …

Opportunistic cognitive routing coupled with dual-stage collaborative spectrum sensing in
multi-channel multi-hop cognitive radio ad hoc networks (CRAHNs) is investigated in this …

The performance of opportunistic forwarding in the multi-hop cognitive radio networks (CRN)
is dependent on the efficient detection of spectrum opportunities and the diversity of relay …

Opportunistic spectrum access using cognitive radio technology enables exploring vacant
licensed spectrum bands and thereby improving the spectrum utilization. However, it will …

Cognitive radio (CR) is a promising technology to improve spectrum utilization. However,
spectrum availability is uncertain which mainly depends on primary user's (PU's) behaviors …