Design of optimum criterion for opportunistic multi-hop routing in cognitive radio networks

An Opportunistic Pervasive Networking Paradigm: Multi-hop Cognitive Radio Networks

Cognitive radio networks enable ubiquitous communications both in frequency and time domain, and hence enable opportunistic pervasive communications. Multi-hop cognitive radio networks are appealing to the researchers due to their wide range of application potential in commercial, emergency communication, and military tactical networks. However, the multi-hop nature of the network coupled with ...

Efficient Routing For High-Mobility Multi Hop Cognitive Radio Networks

In high-mobility cognitive radio networks (CRNs), the fast topology changes increase the complexity of the routing scheme. In this paper, we propose a novel CRN routing scheme that considers the path stability and node capacity. First, a realistic mobility model is proposed to describe the movement of highly mobile airborne nodes and estimate the link stability performance based on node movemen...

Universal Routing in Multi-hop Radio Networks

We study dynamic routing in multi-hop radio networks in a specialized framework of adversarial queuing. We consider cross-layer interactions of the following three components of routing protocols: transmission policies for mediumaccess control, scheduling policies on the network layer, and hearing-control mechanisms through which transmissions interact with a scheduler. We propose a model of ad...

Multi-Channel Opportunistic Routing in Multi-Hop Wireless Networks

We propose and investigate Multi-Channel Extremely Opportunistic Routing (MCExOR) which is a protocol that extends Extremely Opportunistic Routing by utilizing multiple RF channels in multi-hop wireless networks. Large numbers of transmissions per end-to-end delivery combined with interference are the main reasons for the low capacity of wireless multi-hop networks. MCExOR reduces the overall n...

Multi-Interface Cognitive Radio for Enhanced Routing Performance in Multi-Hop Cellular Networks