Contemporary wireless networks must meet the ever increasing bandwidth requirements to
assure the quality of service (QoS) to the end users. Cognitive radio (CR) technology with …

Due to the increasing demand for new wireless services and applications as well as the
increasing number of wireless users, the available spectrum is becoming increasingly …

The major hurdle that restricts the efficient utilization of radio spectrum is its inflexible and
rigid licensing scheme. This constraint limits the emerging wireless systems to operate in …

Today's wireless networks are characterized by fixed spectrum assignment policy. The
spectral scarcity and the inefficiency in the spectrum usage necessitate a new …

The ideal utilization of radio spectra is a major issue of concern in the field of wireless
communication. Increasing demand for wireless radio services has led to the issue of …

Advances in wireless communication have changed the customs and the living style of
people today, and the demand for wireless communication with high speeds and ubiquitous …

Contemporary wireless systems must meet increased bandwidth requirements due to the
persistent trend for higher multimedia data rates. Increased bandwidth may be achieved by …

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

With the rapid deployment of new wireless devices and applications, the last decade has
witnessed a growing demand for wireless radio spectrum. However, the fixed spectrum …

Cognitive radio (CR) is a technology that is of growing interest internationally. Currently,
there is a highly active worldwide community of academic and industrial researchers …