NDLI: Throughput maximisation in cognitive radio networks with residual bandwidth

Content Provider	IET Digital Library
Author	Paul, Anal Banerjee, Avik Maity, Santi P.
Abstract	Recent progress in cognitive radio networks (CRNs) promises to meet device-to-device communication requirements for spectrum utilisation and power control to support billions of machines/devices to be connected worldwide. The architecture of the CRN must maintain a high data rate (throughput) at low power consumption, which requires both spectrum efficient and energy efficient system design. To this aim, the proposed work adopts a CRN model, which operates in an interweave mode that allows spectrum sensing followed by opportunistic secondary user (SU) data transmission over the unused bandwidth of the primary user (PU) in a non-overlapping frame structure. Closed form expressions of the optimal spectrum sensing duration, bandwidth, and power allocation of each secondary node are obtained to maximise the sum throughput of the overall CRN while maintaining the constraints of sensing reliability of PU, individual SU transmission outage probability, permissible interference, and residual bandwidth. Numerical results highlight that the proposed scheme maximises the sum network throughput by ∼ 50.54 and ∼ 63.76 % over the other existing techniques.
Starting Page	1327
Ending Page	1335
Page Count	9
ISSN	17518628
Volume Number	13
e-ISSN	17518636
Issue Number	Issue 10, Jun (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/13/10
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2018.5928
Journal	IET Communications
Publisher Date	2019-02-20
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Cognitive Radio Cognitive Radio Network Control Application in Radio And Radar CRN Model Data Transmission Device-to-device Communication Requirements Electromagnetic Compatibility Energy Efficient System Design Interference Nonoverlapping Frame Structure Opportunistic Secondary User Opportunistic Secondary User Data Transmission Optimal Spectrum Sensing Duration Optimisation Optimisation Technique Permissible Interference Power Allocation Power And Energy Control Power Consumption Power Control Primary User Probability Radio Frequency Interference Radio Link And Equipment Radio Spectrum Management Reliability Residual Bandwidth Secondary Node Sensing Reliability Constraint Signal Detection Spectrum Utilisation Statistics SU Transmission Outage Probability Sum Network Throughput Sum Throughput Telecommunication Control Telecommunication Network Reliability Throughput Maximisation
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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