The need for load balancing will be more significant in fifth generation mobile network and
beyond due to the massive upsurge in the quantity of users and rising use of small cell sizes …

Recent interesting activities in spectrum analysis have introduced an additional band, the 5
GHz unlicensed spectrum, which has been primarily used for Wi-Fi. There are many …

Cooperative spectrum sensing increases the detection performance in a cognitive radio
network, based on the number of sensing nodes. However, as the number of sensing nodes …

Spectrum sensing in cognitive radio networks allows secondary users to sense the unused
spectrum without causing interference to primary users. Cognitive radio requires more …

The articles in this special section focus on the deployment of Long Term Evolution in
unlicensed spectrum. These articles cover various design issues such as network …

Spectrum sensing is the most appropriate method performed by cognitive radio for the
efficient utilization of RF spectrum without any harmful interference to the primary users. In …

Cognitive Radio (CR) sensing has been widely considered as a spectrum scanning
mechanism that allows secondary users (SUs) or cognitive radio users to use detected …

The frequency spectrum available for the wireless communication is extremely crowded. In
order to improve the spectral efficiency, the two-way relay networks have aroused great …

Cognitive radio (CR) is seen as a new approach to a more efficient utilization of natural
resources-the radio electromagnetic spectrum. CR is described as an intelligent wireless …

ABSTRACT A cognitive radio system is a mechanism which allows unlicensed (cognitive)
user to utilize free bands. Cognitive users detect the presence of such free bands and …