The International Arab Journal of Information Technology (IAJIT)


Design and Simulation of Spectrum Access and

This work investigates the problem of managing the transmission power and assigning channels for multi-channel single-radio Cognitive Radio Ad-Hoc Networks (CRAHNs). The considered network consists of M primary users and N secondary users, where the secondary users can use the licensed channels opportunistically when they are not utilized by the primary users. The secondary users have the capability of sensing the licensed channels and determine their occupation status. They are also able to control their transmission power such that the transmitted data can be received with high quality-of- service with the lowest possible transmission power, and minimum interference among the secondary users. This also contributes in increasing the frequency spatial reuse of the licensed channels by the secondary users, when the channels are unoccupied, which increases the network throughput. This work proposes a channel assignment algorithm aims at assigning the unoccupied licensed channels among secondary users efficiently, and a transmission power control aims at tuning the transmission power used by the secondary users to maximize the network throughput. The results show an enhancement achieved by the proposed protocol when it is integrated to the considered network, which is seen through increasing the network throughput and decreasing in the access delay. In this context, the Network Simulator 2 (NS2) was used to verify our proposed protocol, which indicates a significant enhancement in network performance.

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[25] Wu S., Tseng Y., Lin C., and Sheu J., “A Multi- Channel MAC Protocol with Power Control for Multi-Hop Mobile Ad Hoc Networks,” The Computer Journal, vol. 45, no. 1, pp. 101-110, 2002. Ala’eddin Masadeh received the B.Sc. and the M.Sc. degrees in Electrical Engineering both from Jordan University of Science and Technology, Irbid, Jordan, in 2010 and 2013, respectively, and the Ph.D. degree in Electrical Engineering and Computer Engineering from Iowa State University, Ames, IA, USA, in 2019. Currently, he is an Assistant Professor in Electrical and Electronics Engineering Department, Al-Balqa Applied University, Jordan. His research interests include wireless networks, energy harvesting communications, reinforcement learning, machine learning, and artificial intelligence. Haythem Bany Salameh (M’06- SM’16) received the Ph.D. degree in Electrical and Computer Engineering from the University of Arizona, USA, in 2009. He is currently a Professor of Communications and Networking Engineering at Al Ain University, Al Ain, UAE (sabbatical leave from Yarmouk University (YU), Jordan). He also holds a visiting professor position at Staffordshire University, UK. He was a recipient of the Jordan Science Research Support Foundation (SRSF) Prestigious Award for Distinguished Research in ICT in 2015, the Best Researcher Award for Scientific Colleges in YU in 2016, and the SRSF Award for Creativity and Technological Scientific Innovation in 2017. From January 2011 to June 2014, he was the Director of the Academic Entrepreneurship Center of Excellence, YU. Prof. Bany Salameh was the Director of the Queen Rania Center for Jordanian Studies and Community Service from June 2014 to June 2018. His research interests include wireless networking, with emphasis on dynamic spectrum access, cognitive radio networking, Internet-of-Things, security, and distributed protocol design. Prof. Bany Salameh has served and continues to serve on the Technical Program Committee of many international conferences and serves as a Reviewer for many international conferences and journals. In the summer of 2008, he was a member of the RandD Long-Term Evolution Development Group QUALCOMM, Inc., San Diego, CA, USA. He is an IEEE Senior Member class of 2016. Ahmad Abu-El-Haija is the Director, National Tempus Office and Professor at Jordan University of Science and Technology (JUST). He was Vice President and Dean of Engineering at JUST. He conducted many consulting missions with World Bank, UNESCO, ITU, UN-ESCWA, ECDL Foundation, Islamic Development Bank, and others. He obtained scholarships and awards from the Fulbright (USA), Alexander-von-Humboldt and DAAD (Germany), Shoman Foundation (Arab region), United Nations. Dr. Abu-ElHaija obtained M.Sc. and Ph.D. from Stanford University, California, USA. He worked with IBM Research Center, New York (1977-1979). He published over 60 technical papers in leading scientific journals and proceedings of international conferences.