Monday 20th of November 2017
 

Performance Evaluation of the Effect of Primary Users on the Rendezvous process for Cognitive Radios


Hassan Al-Mahdi, Mohamed Wahed and Safa Abd El-Aziz

The Rendezvous process is an essential process for establishing a communication link between two nodes in cognitive radio networks. A number of rendezvous protocols have been developed in the last few years. However, many protocols ignore one of the basic constraints of cognitive radio networks which is the impact of the primary users (PUs) on the performance of the rendezvous process. In this paper, we develop an analytical model to evaluate such impact. The ordinary residual time process is used to develop this model. The results, which are validated by the simulation results, show that the primary user activity cannot be ignored and it affects negatively the time to rendezvous (TTR) between two nodes.

Keywords: Rendezvous, Cognitive radio, Analytical model.

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ABOUT THE AUTHORS

Hassan Al-Mahdi
Hassan Al-Mahdi was born in Egypt in 1971. He received his B.Sc. degree in Computing Science and M.Sc. degree in Computer Science from the Faculty of Science, Suez Canal University, Ismailia, Egypt in 1994 and 2001, respectively. He received a Doctoral degree in Wireless Networks in 2006. He is a full lecturer at the Faculty of Computer and Informatics, Suez Canal University, Ismailia, Egypt. His research focuses on ad hoc networks, mobile cellular communications, and performance evaluation of networks. He has many papers mostly in the area of data communication and performance evaluation.

Mohamed Wahed
Faculty of Computers and Informatics, Suez Canal University, Ismailia, Egypt

Safa Abd El-Aziz
Faculty of Computers and Informatics, Suez Canal University, Ismailia, Egypt


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