All Outputs (17)

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. https://doi.org/10.5937/telfor1702080f

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 about Performance of a TV white space database with different terrain resolutions and propagation models.

Implementation of combined geolocation database and infrastructure sensing in TV bands using different spectrum devices (2017)
Presentation / Conference Contribution
Fanan, A., Riley, N. G., Mehdawi, M., & Alfahad, O. (2017, November). Implementation of combined geolocation database and infrastructure sensing in TV bands using different spectrum devices. Presented at 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 about Implementation of combined geolocation database and infrastructure sensing in TV bands using different spectrum devices.

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. https://doi.org/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 about Design of Cognitive Radio Database using Terrain Maps and Validated Propagation Models.

Influence of antenna selection on spectrum occupancy measurements in the context of cognitive radio (2017)
Presentation / Conference Contribution
Mehdawi, M., Riley, N. G., Fanan, A., & Ammar, M. (2016, November). Influence of antenna selection on spectrum occupancy measurements in the context of cognitive radio. Presented at 24th Telecommunications Forum, TELFOR 2016

© 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 about Influence of antenna selection on spectrum occupancy measurements in the context of cognitive radio.

Comparison of spectrum occupancy measurements using software defined radio RTL-SDR with a conventional spectrum analyzer approach (2016)
Presentation / Conference Contribution
Fanan, A., Riley, N., Mehdawi, M., Ammar, M., & Zolfaghari, M. (2016, November). Comparison of spectrum occupancy measurements using software defined radio RTL-SDR with a conventional spectrum analyzer approach. Presented at 2015 23rd Telecommunications Forum Telfor (TELFOR)

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 about Comparison of spectrum occupancy measurements using software defined radio RTL-SDR with a conventional spectrum analyzer approach.

Spectrum occupancy measurements and lessons learned in the context of cognitive radio (2016)
Presentation / Conference Contribution
Mehdawi, M., Riley, N. G., Ammar, M., Fanan, A., & Zolfaghari, M. (2015, November). Spectrum occupancy measurements and lessons learned in the context of cognitive radio. Presented at 2015 23rd Telecommunications Forum, TELFOR 2015

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 about Spectrum occupancy measurements and lessons learned in the context of cognitive radio.

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

Security aspects in cognitive radio networks detection and mitigation of primary user emulation attacks (2015)
Presentation / Conference Contribution
Ammar, M., Riley, N., Mehdawi, M., Fanan, A., & Zolfaghari, M. (2015, April). Security aspects in cognitive radio networks detection and mitigation of primary user emulation attacks. Presented at COCORA 2015 : The Fifth International Conference on Advances in Cognitive Radio

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 about Security aspects in cognitive radio networks detection and mitigation of primary user emulation attacks.

Physical Layer Security in Cognitive Radio Networks: Detection and Mitigation of Primary User Emulation Attacks (2015)
Presentation / Conference Contribution
Ammar, M., Riley, N., Mehdawi, M., Fanan, A., & Zolfaghari, M. (2015, January). Physical Layer Security in Cognitive Radio Networks: Detection and Mitigation of Primary User Emulation Attacks. Presented at International Conference on Artificial Intelligence, Energy and Manufacturing Engineering

Cognitive Radio Networks (CR) is an advanced growing technique and a promising technology for the upcoming generation of the wireless networks in order to efficiently utilize the limited spectrum resources and satisfy the rapidly increasing demand fo... Read More about Physical Layer Security in Cognitive Radio Networks: Detection and Mitigation of Primary User Emulation Attacks.

Experimental detection using cyclostationary feature detectors for cognitive radios (2014)
Presentation / Conference Contribution
Zolfaghari, M., Fanan, A., Mehdawi, M., Riley, N. G., & Ammar, M. (2014, November). Experimental detection using cyclostationary feature detectors for cognitive radios. Presented at 2014 22nd Telecommunications Forum, TELFOR 2014 - Proceedings of Papers, Serbia, Belgrade

© 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 about Experimental detection using cyclostationary feature detectors for cognitive radios.

Survey: A comparison of spectrum sensing techniques in cognitive radio (2014)
Presentation / Conference Contribution
Fanan, A., Riley, N., Mehdawi, M., Ammar, M., & Zolfaghari, M. (2014, January). Survey: A comparison of spectrum sensing techniques in cognitive radio. Presented at International Conference Image Processing, Computers and Industrial Engineering

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 about Survey: A comparison of spectrum sensing techniques in cognitive radio.

A Spectrum Sensing Test Bed based on Matlab and USRP2 (2014)
Presentation / Conference Contribution
Ammar, M., Mehdawi, M., Riley, N., Fanan, A., Paulson, K., & Zolfaghari, M. (2014, January). A Spectrum Sensing Test Bed based on Matlab and USRP2. Presented at International Conference on Machine Learning, Electrical and Mechanical Engineering

— 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 about A Spectrum Sensing Test Bed based on Matlab and USRP2.

A slot-loaded reduced-size CPW-fed aperture antenna for UWB applications (2013)
Presentation / Conference Contribution
Zolfaghari, M., Riley, N. G., Mahdawi, M., & Shen, J. (2013, November). A slot-loaded reduced-size CPW-fed aperture antenna for UWB applications. Presented at 2013 Loughborough Antennas and Propagation Conference, LAPC 2013

The paper presents a co-planar wave guide (CPW)-fed slot loaded low return loss planar printed antenna with a small size designed for wireless communication and UWB applications. First, a conventional UWB antenna is modeled to provide a reference poi... Read More about A slot-loaded reduced-size CPW-fed aperture antenna for UWB applications.

Cooperative wideband spectrum sensing with multi-bit hard decision in cognitive radio (2013)
Presentation / Conference Contribution
Mehdawi, M. A., Riley, N. G., Ammar, M., Fanan, A., & Zolfaghari, M. (2013, November). Cooperative wideband spectrum sensing with multi-bit hard decision in cognitive radio. Presented at 2013 21st Telecommunications Forum Telfor, TELFOR 2013 - Proceedings of Papers

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 about Cooperative wideband spectrum sensing with multi-bit hard decision in cognitive radio.

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

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 about Spectrum occupancy survey In HULL-UK For cognitive radio applications: Measurement & analysis.

Comparing historical and current spectrum occupancy measurements in the context of cognitive radio (2012)
Presentation / Conference Contribution
Mehdawi, M., Riley, N., Ammar, M., & Zolfaghari, M. (2012, November). Comparing historical and current spectrum occupancy measurements in the context of cognitive radio. Presented at 2012 20th Telecommunications Forum (TELFOR)

Cognitive radio (CR) technology promises to be one possible solution to solve the problem of lack of frequency spectrum, by allowing access of unlicensed users in licensed bands, based on an opportunistic approach and without interfering with the lic... Read More about Comparing historical and current spectrum occupancy measurements in the context of cognitive radio.

Reduced-size circularly polarised square microstrip antenna for 2.45 GHz RFID applications (2012)
Journal Article
Nguyen, D., Paulson, K., & Riley, N. (2012). Reduced-size circularly polarised square microstrip antenna for 2.45 GHz RFID applications. IET Microwaves Antennas and Propagation, 6(1), 94-99. https://doi.org/10.1049/iet-map.2011.0269

This study proposes a new design of circular polarised (CP), microstrip (patch) antenna using a set of slits and slots to effectively reduce the area of patch by 67% compared with the conventional, corner truncated, circular polarised square patch. T... Read More about Reduced-size circularly polarised square microstrip antenna for 2.45 GHz RFID applications.