The MAC protocol for a cognitive radio network should allow access to unused spectrum
holes without (or with minimal) interference to incumbent system devices. To achieve this …

This paper presents a TDMA based energy efficient cognitive radio multichannel medium
access control (MAC) protocol called ECR-MAC for wireless Ad Hoc Networks. ECR-MAC …

In this paper, we investigate the opportunistic spectrum access for cognitive radio vehicular
ad hoc networks. The probability distribution of the channel availability is first derived …

Recently, machine-to-machine (M2M) communications has become an emerging paradigm
that provides ubiquitous connectivity among numerous devices to support diverse …

Cognitive radio ad hoc networks (CRAHNs) have recently been proposed as a way to bring
cognitive radio (CR) technology to traditional ad hoc networks. An important problem is to …

Current advancements in vehicular networking lead to amplifying the issue of spectrum
scarcity. Cognitive radio (CR) has emerged as the key technology that enables flexible …

Abstract A Cognitive Radio based Wireless Network (CRWN) is an emerging trend in
wireless networks. Cognitive Radio (CR) has opened up many new opportunities to utilize …

In support of traffic safety applications, vehicular networks should offer a robust Medium
Access Control (MAC) layer protocol that can provide a reliable delivery service to safety …

Spectrum for wireless communications is traditionally assigned by inefficient spectrum
access schemes. Portions of the spectrum are exclusively used by specific wireless systems …

Cognitive radio ad hoc networks (CRAHNs) consist of autonomous nodes that operate in ad
hoc mode and aim at efficient utilization of spectrum resources. Usually, the cognitive nodes …