A cognitive radio wireless sensor network is one of the candidate areas where cognitive
techniques can be used for opportunistic spectrum access. Research in this area is still in its …

Opportunistic spectrum access (OSA) has been regarded as the most promising approach to
solve the paradox between spectrum scarcity and waste. Intelligent decision making is key …

In this paper, we present an analytical framework to evaluate the effects of multiple spectrum
handoffs on channel utilization and latency performances in cognitive radio (CR) networks …

With growing concern about environmental issues and an emerging green communications
paradigm, cognitive radio (CR) networks (CRNs) have to be considered from the energy …

Traditional wireless sensor networks (WSNs) working in the license-free spectrum suffer
from uncontrolled interference as the license-free spectrum becomes increasingly crowded …

The cognitive radio (CR) paradigm for designing next‐generation wireless communications
systems is becoming increasingly popular, and different aspects of it are being implemented …

Traditional wireless networks including wireless sensor networks working in an unlicensed
spectrum band are suffered from uncontrolled interference, as this unlicensed spectrum …

In wireless communication networks, the network provider serves certain licensed primary
users who pay for a dedicated use of the frequency channels. However, not all the channels …

With the implementation of channel assembling (CA) techniques, higher data rate can be
achieved for secondary users in multi-channel cognitive radio networks. Recent studies …

Cognitive radio networks (CRNs) are an emerging paradigm for next generation wireless
communication systems allowing for more efficient radio spectrum utilization. In order to …