UF0MC-IOTA Based Cognitive Radio Transceiver
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UF0MC‑IOTA Based Cognitive Radio Transceiver R. Dayana1 · P. Malarvezhi1 · K. Vadivukkarasi1 · R. Kumar1
© Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Express evolution in smart wireless communication address the issue of spectrum scarcity. Implementation of cognitive radio (CR) is one of the promising technologies for the effective utilization of spectrum. Sensing is the critical component of cognitive radio. Moreover, encouraged by the element of sensing is critical for consistently defining spectral opportunity and succeeding opportunity in spectrum access for the fifth generation (5G) wireless networks. Universal filtered multicarrier—Isotropic Orthogonal Transform Algorithm (UFMC-IOTA) is the excellent 5G waveform candidates. This article focuses on the performance of UFMC-IOTA based CR transceiver sensing challenges, downlink capacity of cognitive radio network (CRN). Simulation results also demonstrate that the proposed transceiver outperforms the capability of sensing than the conventional sensing methodologies in CRN. It also increases the detection probability of CRN at very low SNR level. Keywords 5G · Universal filtered multi-carrier · Cyclo-stationary feature detection · UFMC-IOTA · Cognitive Radio Networks
1 Introduction The spectrum is one of the valued limited resource, particularly with remarkable changes in the wireless services and applications. Cognitive radio is a new technology proposed by Dr. J. Mitola, as an appreciated solution for spectrum scarcity [1]. The roles of cognitive radio are spectrum sensing, sharing, controlling and spectrum agility. One of the most important element or key aspect in CRN is spectrum sensing. CRN also called as an on demand intelligent dynamic adaptive network over the congested busy radio environment
* P. Malarvezhi [email protected] R. Dayana [email protected] K. Vadivukkarasi [email protected] R. Kumar [email protected] 1
Department of ECE, SRM Institute of Science and Technology, Chennai, India
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without interference. The motivation to implement the CRN is effective utilization of spectrum [2]. CRN is capable of automatically detecting and allocating the unused spectrum for the applications on demand basis. It can sense the spectrum based on multidimensional like frequency, time, geographical space, code and angle etc. Unused spectrum also called as white space or spectrum-hole. Licensed users are the authorized personality for utilizing the licensed spectrum. Other name of licensed user is Primary User (PU). Unlicensed users are Secondary Users (SU). Based on structure, CRN classified as infrastructure CRN and non-infrastructure CRN [3]. Through suitable sensing methodology, the CRN sensing the underutilized or unutilized spectrum i.e., white spaces and it allocate the same to the SU without causing interference to the PU. Sensing peripheral radio spectrum exactly and rapidly plays a major role in cognitive radio. Conventional method of sensing is energy de
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