Cognitive radio ad hoc networks (CRAHNs) are a class of cognitive radio networks. In recent
years, they have gained popularity, and routing protocols have been proposed. Above all …

Ad-hoc routing protocols with cognitive capabilities have been proposed which solves the
problem of spectrum scarcity. It does it by intelligently allowing the unlicensed devices to …

Cognitive Radio has been considered as a potential contender to interpret the problems of
limited availability of spectrum and inefficiency of spectrum usage. Cognitive radio ad hoc …

In this paper we propose a network aware approach for routing in graded network using
Artificial Bee Colony (ABC) algorithm. ABC has been used as a good search process for …

Recent research activities about cognitive radio (CR) are mainly focusing on opportunistic
spectrum access and spectrum utilization. However, CR technology will have significant …

Due to exponential growth in the number of wireless devices, with each one exchanging
huge amount of data, requirement for the spectrum in almost all bands has risen very …

In cognitive radio networks, a secondary user (SU) is dependent upon the spectrum, of
varied frequency, temporarily vacated by primary users (PU) thereby making it quite a …

Cognitive radio, CR is a promising technology to authorize the competent usage of restricted
natural resource radio frequency spectrum for the wireless devices. The technology …

One of the main challenging factors for designing routing protocols in cognitive radio ad-hoc
network (CRAHNs) is how to select route for which can save energy battery for devices and …

Cognitive radio technology has been proposed as a solution to problem of spectrum scarcity
which aims to improve the spectrum resource utilization. Furthermore, cognitive radio ad hoc …