In this paper, the performance of Cognitive Radio (CR) CDMA networks is analyzed. More precisely, we develop a simulation testbed for analyzing the performance of a CR user with and without spectrum sensing in a three cell scenario. Three different schemes for spectrum sensing are studied. CR users belong to a Cognitive Radio Network (CRN) which is coexisting with a Primary Radio Network (PRN). Both CRN and PRN are CDMA-based. Soft Handoff (HO) and power control are considered for both CRN and PRN. We evaluate the performance of the proposed systems in terms of outage probability, blocking probability, and average data rate of secondary users (SUs). For comparison purposes, together with the three considered schemes with spectrum sensing we also analyze a scheme without spectrum sensing.
Performance evaluation of cognitive radio CDMA networks with and without spectrum sensing / S., Dhar Roy; S., Kundu; Ferrari, Gianluigi; Raheli, Riccardo. - (2010), pp. 1-5. (Intervento presentato al convegno IEEE Int. Conf. on Communications (ICC 2010), Workshop on Cognitive Radio Interfaces and Signal Processing (CRISP) tenutosi a Città del Capo, Sud Africa nel Maggio) [10.1109/ICCW.2010.5503879].
Performance evaluation of cognitive radio CDMA networks with and without spectrum sensing
FERRARI, Gianluigi;RAHELI, Riccardo
2010-01-01
Abstract
In this paper, the performance of Cognitive Radio (CR) CDMA networks is analyzed. More precisely, we develop a simulation testbed for analyzing the performance of a CR user with and without spectrum sensing in a three cell scenario. Three different schemes for spectrum sensing are studied. CR users belong to a Cognitive Radio Network (CRN) which is coexisting with a Primary Radio Network (PRN). Both CRN and PRN are CDMA-based. Soft Handoff (HO) and power control are considered for both CRN and PRN. We evaluate the performance of the proposed systems in terms of outage probability, blocking probability, and average data rate of secondary users (SUs). For comparison purposes, together with the three considered schemes with spectrum sensing we also analyze a scheme without spectrum sensing.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
