In collaborative Cognitive Radio Networks (CRN), Cognitive Radio (CR) nodes exchange information to perform the cognitive radio functions. The exchange of information in collaborative CRN is usually based on a Cognitive Control Channel (CCC). CCC can be classified in in-band channel or out-of-band channel. An Out-of-band CCC channel is a CCC, which uses a specific spectrum band In this paper, the authors propose the design of an out-of-band CCC based on an Ultra Wideband pulse shaped signal, which can mitigates some of the described challenges. The proposed design is particularly resilient to harmful interference and it is able to adapt its spectrum occupation to the primary wireless services present in the area. We define the requirements ...
Cognitive Radio paradigm has recently received considerable interest to address the so called ’spect...
Today's wireless networks are characterized by a fixed spectrum assignment policy. However, a large ...
Due to the fixed spectrum assignment policy, a large portion of the assigned spectrum in today’s wir...
In this paper, a cognitive radio network (CRN) model is presented. In this model, the control of the...
The implementation of a common control channel is one of the most challenging issues in cognitive ra...
Cognitive radio (CR) technology allows devices to opportunistically use the vacant portions of the l...
Recent effort related to cognitive radio systems has lead to an in-depth analysis of context informa...
Cognitive radio (CR) technology offers a promising solution to the spectrum scarcity problem via dyn...
Recent effort related to cognitive radio systems has lead to an in-depth analysis of context informa...
Abstract—In this paper, a cognitive radio network (CRN) model is presented. In this model, the contr...
Cognitive Radio (CR) is one possible option for mitigating the inefficient wireless spectrum distrib...
Abstract—Cognitive Radio (CR) will enhance the efficiency in spectrum usage by re-using temporally u...
This chapter describes the concept and approach of ultra-wideband cognitive radio (CR-UWB), a wirele...
In this paper we introduce the basic concepts underlying Cognitive Radio (CR) as an emerging approa...
Abstract- The frequency spectrum is a limited resource, so efficient use of frequency is very import...
Cognitive Radio paradigm has recently received considerable interest to address the so called ’spect...
Today's wireless networks are characterized by a fixed spectrum assignment policy. However, a large ...
Due to the fixed spectrum assignment policy, a large portion of the assigned spectrum in today’s wir...
In this paper, a cognitive radio network (CRN) model is presented. In this model, the control of the...
The implementation of a common control channel is one of the most challenging issues in cognitive ra...
Cognitive radio (CR) technology allows devices to opportunistically use the vacant portions of the l...
Recent effort related to cognitive radio systems has lead to an in-depth analysis of context informa...
Cognitive radio (CR) technology offers a promising solution to the spectrum scarcity problem via dyn...
Recent effort related to cognitive radio systems has lead to an in-depth analysis of context informa...
Abstract—In this paper, a cognitive radio network (CRN) model is presented. In this model, the contr...
Cognitive Radio (CR) is one possible option for mitigating the inefficient wireless spectrum distrib...
Abstract—Cognitive Radio (CR) will enhance the efficiency in spectrum usage by re-using temporally u...
This chapter describes the concept and approach of ultra-wideband cognitive radio (CR-UWB), a wirele...
In this paper we introduce the basic concepts underlying Cognitive Radio (CR) as an emerging approa...
Abstract- The frequency spectrum is a limited resource, so efficient use of frequency is very import...
Cognitive Radio paradigm has recently received considerable interest to address the so called ’spect...
Today's wireless networks are characterized by a fixed spectrum assignment policy. However, a large ...
Due to the fixed spectrum assignment policy, a large portion of the assigned spectrum in today’s wir...