Title :
On the impact of the sensing rate of secondary users in Cognitive Radio Networks
Author :
Salameh, O.I. ; De Turck, K. ; Wittevrongel, S. ; De Vuyst, S. ; Bruneel, H.
Author_Institution :
Dept. of Telecommun. & Inf. Process., Ghent Univ., Ghent, Belgium
Abstract :
The first phase in the operation of a Cognitive Radio Network (CRN) is the investigation of the availability of idle channels through channel sensing. In this paper we study the impact of the sensing rate of Secondary Users (SUs) in a CRN. We develop a continuous-time Markov chain (CTMC) to study the effect of the sensing rate σ on the performance measures of the CRN including the expected SU delay, the SU interruption probability, the probability a SU is discarded after entering the system and the SU blocking probability. The obtained results reveal that the sensing rate has a crucial impact on these measures.
Keywords :
Markov processes; cognitive radio; wireless channels; SU blocking probability; SU delay; SU interruption probability; channel sensing; cognitive radio networks; continuous-time Markov chain; idle channels; secondary users; sensing rate; Analytical models; Cognitive radio; Delays; Interrupters; Markov processes; Sensors; cognitive radio; continuous-time Markov chain; performance evaluation;
Conference_Titel :
Future Internet Communications (CFIC), 2013 Conference on
Conference_Location :
Coimbra
DOI :
10.1109/CFIC.2013.6566326
