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Performance of a TV white space database with different terrain resolutions and propagation models (2017)
Journal Article
Fanan, A., Riley, N., Mehdawi, M., & Alfahad, O. (2017). Performance of a TV white space database with different terrain resolutions and propagation models. Telfor Journal, 9(2), (80-85). doi:10.5937/telfor1702080f. ISSN 2334-9905

Cognitive Radio has now become a realistic option for the solution of the spectrum scarcity problem in wireless communication. TV channels (the primary user) can be protected from secondary-user interference by accurate prediction of TV White Spaces... Read More

Implementation of combined geolocation database and infrastructure sensing in TV bands using different spectrum devices (2017)
Conference Proceeding
Fanan, A., Riley, N. G., Mehdawi, M., & Alfahad, O. (in press). Implementation of combined geolocation database and infrastructure sensing in TV bands using different spectrum devices. In Proceedings of the 25th Telecommunications forum TELFOR 2017

—In the present day, the TV Band has become a realistic option and has attracted much attention due to the potential to exploit underutilized TV white space for other communications, based on time and location. In this paper, we design a flexible sys... Read More

Design of Cognitive Radio Database using Terrain Maps and Validated Propagation Models (2017)
Journal Article
Fanan, A. M., Riley, N., & Mehdawi, M. (2017). Design of Cognitive Radio Database using Terrain Maps and Validated Propagation Models. Advances in science, technology and engineering systems journal, 2(6), 13-19. doi:10.25046/aj020602

Cognitive Radio (CR) encompasses a number of technologies which enable adaptive self-programing of systems at different levels to provide more effective use of the increasingly congested radio spectrum. CRs have potential to use spectrum allocated to... Read More

Influence of antenna selection on spectrum occupancy measurements in the context of cognitive radio (2017)
Conference Proceeding
Mehdawi, M., Riley, N. G., Fanan, A., & Ammar, M. (2017). Influence of antenna selection on spectrum occupancy measurements in the context of cognitive radio. In 2016 24th Telecommunications Forum (TELFOR)doi:10.1109/TELFOR.2016.7818754

© 2016 IEEE. Cognitive radio (CR) has been proposed as a solution to the spectrum scarcity problem, which is aggravated by emergence of bandwidth-hungry and feature-rich wireless applications. Selection of appropriate antennas for cognitive radio app... Read More

Quality measurements of an UWB reduced-size CPW-fed aperture antenna (2016)
Book
Zolfaghari, M., Fanan, A., Mehdawi, M., Riley, N. G., Ammar, M., & Meng, F. (2016). Quality measurements of an UWB reduced-size CPW-fed aperture antenna. Institute of Electrical and Electronics Engineers. doi:10.1109/TELFOR.2015.7377526

The paper presents a characterization of a compact co-planar waveguide (CPW)-fed slot loaded low return loss planar printed antenna designed for wireless communication and ultra-wideband (UWB) applications. Following a review of the antenna design, w... Read More

Spectrum occupancy measurements and lessons learned in the context of cognitive radio (2016)
Conference Proceeding
Zolfaghari, M., Fanan, A., Mehdawi, M., Riley, N. G., & Ammar, M. (2016). Spectrum occupancy measurements and lessons learned in the context of cognitive radio. doi:10.1109/TELFOR.2015.7377446

Various measurement campaigns have shown that numerous spectrum bands are vacant even though licenses have been issued by the regulatory agencies. Dynamic spectrum access (DSA) based on Cognitive Radio (CR) has been regarded as a prospective solution... Read More

Comparison of spectrum occupancy measurements using software defined radio RTL-SDR with a conventional spectrum analyzer approach (2016)
Conference Proceeding
Mehdawi, M., Ammar, M., Zolfaghari, M., Fanan, A., & Riley, N. (2016). Comparison of spectrum occupancy measurements using software defined radio RTL-SDR with a conventional spectrum analyzer approach. doi:10.1109/TELFOR.2015.7377447

In the present day Cognitive Radio has become a realistic option for solution of the spectrum scarcity problem in wireless communication. Recently, the TV band has attracted attention due to the considerable potential for exploitation of available TV... Read More

Security aspects in cognitive radio networks detection and mitigation of primary user emulation attacks (2015)
Conference Proceeding
Ammar, M., Riley, N., Mehdawi, M., Fanan, A., & Zolfaghari, M. (2015). Security aspects in cognitive radio networks detection and mitigation of primary user emulation attacks. In Advances in cognitive radio. International conference. 5TH 2015. (COCORA 2015), 1-7

Cognitive Radio Networks (CR) is an advanced growing technique and a promising technology for the upcoming generation of the wireless networks. Deployment of such networks is hindered by the vulnerabilities that these networks are exposed to, in this... Read More

Experimental detection using cyclostationary feature detectors for cognitive radios (2014)
Conference Proceeding
Zolfaghari, M., Fanan, A., Mehdawi, M., Riley, N. G., & Ammar, M. (2014). Experimental detection using cyclostationary feature detectors for cognitive radios. doi:10.1109/telfor.2014.7034403

© 2014 IEEE. Signal detection is widely used in many applications. Some examples include Cognitive Radio (CR) and military intelligence. Without guaranteed signal detection, a CR cannot reliably perform its role. Spectrum sensing is currently one of... Read More

Survey: A comparison of spectrum sensing techniques in cognitive radio (2014)
Conference Proceeding
Fanan, A., Riley, N., Mehdawi, M., Ammar, M., & Zolfaghari, M. (2014). Survey: A comparison of spectrum sensing techniques in cognitive radio. In International Conference Image Processing, Computers and Industrial Engineering (ICICIE'2014), 73-77. doi:10.15242/IIE.E0114560

In the present day Cognitive Radio has become a realistic option for solution of the spectrum scarcity problem in wireless communication. One of the most challenging issues in cognitive radio systems is spectrum sensing concepts, which is considered... Read More

A Spectrum Sensing Test Bed based on Matlab and USRP2 (2014)
Conference Proceeding
Ammar, M., Mehdawi, M., Riley, N., Fanan, A., Paulson, K., & Zolfaghari, M. (2014). A Spectrum Sensing Test Bed based on Matlab and USRP2. In International Conference Image Processing, Computers and Industrial Engineering (ICICIE'2014), 14-17. doi:10.15242/IIE.E0114

— The spectrum monitoring has gained new aspects with development of the software defined radio SDR as its very important issue in the spectrum management area. In this paper a spectrum monitoring technique with SDR is proposed, the setup of the prot... Read More

Cooperative wideband spectrum sensing with multi-bit hard decision in cognitive radio (2013)
Conference Proceeding
Mehdawi, M. A., Riley, N. G., Ammar, M., Fanan, A., & Zolfaghari, M. (2013). Cooperative wideband spectrum sensing with multi-bit hard decision in cognitive radio. doi:10.1109/TELFOR.2013.6716212

Cognitive radio offers an increasingly attractive solution to overcome the underutilization problem. A sensor network based cooperative wideband spectrum sensing is proposed in this paper. The purpose of the sensor network is to determine the frequen... Read More

Spectrum occupancy survey In HULL-UK For cognitive radio applications: Measurement & analysis (2013)
Journal Article
Mehdawi, M., Riley, N., Paulson, K., Fanan, A., & Ammar, M. (2013). Spectrum occupancy survey In HULL-UK For cognitive radio applications: Measurement & analysis. International Journal of Scientific and Technology Research, 2(4), (231-236). ISSN 2277-8616

Efficient use of the radio spectrum is a necessity for future wireless systems. Cognitive Radio (CR) systems promise large inc reases in spectral efficiency. An important design constraint for systems is understanding of the current use of frequency... Read More