Cognitive radio technology has emerged as the novel and effective approach to improve the
utilization of precious radio spectrum. Employing the cognitive radio technology, secondary …

The radio spectrum (3kHz-300GHz) has become saturated and proven to be insufficient to
address the proliferation of new wireless applications. Cognitive Radio Technology which is …

Cognitive radio technology can improve spectrum efficiency by allowing secondary users to
opportunistically access frequency bands. Although a number of approaches have been …

Designing a medium access control (MAC) protocol is a key for implementing any practical
wireless network. In general, a MAC protocol is responsible for coordinating users in …

Vehicular ad hoc networks (VANETs) provide information and entertainment to drivers for
safe and enjoyable driving. Wireless Access in Vehicular Environments (WAVE) is designed …

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 …

Multi-channel hidden terminal due to imperfect CR node synchronization is one of the
crucial problems in dynamic channel availability of Cognitive radio ad-hoc networks. Most …

In this paper, we show that the aggregate network throughput of a cognitive radio network
can be significantly increased by using primary transmitter location sensing in addition to …

Cognitive radio sensor networks (CRSNs) are multi-channel-capable networks that inherit
some of the challenges of traditional wireless sensor networks (WSNs), such as limited …

Vehicular ad hoc networks (VANETs) employ multichannel to provide a variety of safety and
non-safety applications. Safety applications require reliable and timely transmission, while …