NDLI: Comprehensive performance analysis of data-fusion aided cooperative cognitive radio network over η − μ fading channel

Content Provider	IET Digital Library
Author	Nallagonda, Srinivas Kumar, Godugu Kiran Nallagonda, Ashok Kumar
Abstract	In this paper, analytical performance of efficient soft-data combining schemes (SDCSs) for cognitive radio network (CRN) is investigated. The performance is investigated in the presence of noise and generalized η − μ fading. In more detail, each CRU senses the PU and reports its sensing information to the fusion center (FC). At FC, different SDCSs, which differ in process of fusing the sensing data, are implemented to make the global decision on the status of a PU. In the present work, first the novel mathematical expressions, subject to SDCS and η − μ fading are derived. Next, the performance is evaluated through receiver operating characteristics (ROC) and average error rate (AER), considering the significant impact of network and channel parameters. The performance of hard-decision combining schemes (HDCSs) is also studied for comparison purpose. The analysis presented in this paper eliminates the need of analysis of SDCSs over individual fading channels. An optimal sensing threshold and an optimal number of CRUs where AER attains its minimum value are also determined for all HDCSs and SDCSs. Finally, the derived expressions are validated by computer based simulations for several parameter values of the network.
Starting Page	2558
Ending Page	2566
Page Count	9
ISSN	17518628
Volume Number	13
e-ISSN	17518636
Issue Number	Issue 16, Oct (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/13/16
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2019.0298
Journal	IET Communications
Publisher Date	2019-07-17
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Analytical Performance Average Error Rate Channel Parameter Cognitive Radio Comprehensive Performance Analysis Computer-based Simulations Cooperative Communication CR Network CRU Data-fusion Aided Cooperative Cognitive Radio Network Efficient Soft-data Combining Scheme Fading Channel Fusion Centre Hard-decision Combining Scheme HDCSs Licensed Primary User Mathematical Expressions Optimal Detection Threshold Optimal Sensing Threshold PU Radio Link And Equipment Radio Network Radio Spectrum Radio Spectrum Management Receiver Operating Characteristic SDCSs Sensing Data Fusion Sensing Information Sensor Fusion Signal Processing And Detection Statistics Η−μ Fading Channel
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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