Document Details

Document Type : Thesis 
Document Title :
SECURE SPECTRUM SENSING IN COGNITIVE RADIO SENSOR NETWORKS
تأمين استشعار الطيف التعاوني في شبكات المجسات ذات الراديو الادراكي
 
Subject : Faculty of Computing and Information Technology 
Document Language : Arabic 
Abstract : The huge demand for spectrum in unlicensed frequency bands has created immediate requirements to make the licensed spectrum bands available to unlicensed users. Spectrum shortage and harsh wireless environment in some applications have become a challenging bottleneck to achieve reliable communications. Cognitive radio is the emerging technology to achieve both spectrum and reliability awareness. Cooperative spectrum sensing takes advantage of spatial diversity to reduce the impact of receiver uncertainty. However, the harsh wireless environment limits the advantages of cooperation due to variations of signal to noise ratio on which energy detection technique depends on. Furthermore, cooperative spectrum sensing opens up opportunities for new types of security attacks such as spectrum sensing data falsification attack, where malicious secondary users intentionally send false sensing reports about spectrum availability to mislead the fusion center. This internal attack cannot be prevented using traditional cryptography mechanisms. This thesis proposes a fuzzy logic based reliable and secure cooperative spectrum sensing in harsh environment. The performance is simulated and results indicated the superiority of the proposed system to enhance the accuracy of spectrum decision in the harsh environment and in the presence of malicious secondary users. 
Supervisor : Dr. Laila Mohammed 
Thesis Type : Doctorate Thesis 
Publishing Year : 1442 AH
2021 AD 
Added Date : Monday, June 7, 2021 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
ريمه محمد الحبشيAl-Habashi, Reema MohammedResearcherDoctorate 

Files

File NameTypeDescription
 47035.pdf pdf 

Back To Researches Page