The opening of under-utilized spectrum creates the opportunity of substantial performance
improvement through cognitive radio techniques. However, the real network performance …

One of the major challenges facing vehicular ad-hoc communication is to ensure efficient
services delivery under different network conditions. In this context, video communication is …

Many researches and standardization work on the challenges that 5 th networks generation
raised from the radio perspective while employing advanced techniques such as massive …

The recent popularization of hand-held mobile devices, such as smartphones, enables the
inter-connectivity among mobile users without the support of Internet infrastructure. When …

In cognitive radio networks, unlicensed users can use under-utilized licensed spectrum to
achieve substantial performance improvement. To avoid interference with licensed users …

Secondary users (SUs) can flexibly access licensed channels to improve the spectrum
utilization in cognitive radio networks (CRNs). In mobile cognitive radio ad hoc networks …

This paper considers co-operation between primary and secondary users in shared
spectrum radio networks via caching. We first consider a network with one channel shared …

In this paper, we investigate the cross-layer optimization problem of congestion and power
control in cognitive radio ad hoc networks (CRANETs) under predictable contact constraint …

In this article, an analytical model for predictable contact between two cognitive users in the
intermittently connected cognitive radio ad hoc networks is proposed. The salient feature of …

Cognitive radio is regarded as a key technique in the fifth generation communication system.
We consider that the popular contents can be cached in cognitive mobile users who …