All Outputs (219)

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 predator-prey based mathematical model of the bone remodelling cycle: Exploring the relationship between the model parameters and biochemical factors (2014)
Journal Article
Ji, B., Yang, Q., Genever, P. G., Patton, R. J., & Fagan, M. J. (2014). A predator-prey based mathematical model of the bone remodelling cycle: Exploring the relationship between the model parameters and biochemical factors. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 228(10), 1035-1042. https://doi.org/10.1177/0954411914554633

© IMechE 2014. Bone remodelling is a vital process which enables bone to repair, renew and optimize itself. Disorders in the bone remodelling process are inevitably manifested in bone-related diseases, such as hypothyroidism, primary hyperparathyroid... Read More about A predator-prey based mathematical model of the bone remodelling cycle: Exploring the relationship between the model parameters and biochemical factors.

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.

Active fault tolerant control for nonlinear systems with simultaneous actuator and sensor faults (2013)
Journal Article
Sami, M., & Patton, R. J. (2013). Active fault tolerant control for nonlinear systems with simultaneous actuator and sensor faults. International journal of control, automation and systems, 11(6), 1149-1161. https://doi.org/10.1007/s12555-013-0227-1

The goal of this paper is to describe a novel fault tolerant tracking control (FTTC) strategy based on robust fault estimation and compensation of simultaneous actuator and sensor faults. Within the framework of fault tolerant control (FTC) the chall... Read More about Active fault tolerant control for nonlinear systems with simultaneous actuator and sensor faults.

An ultrasonic transducer transient compensator design based on a simplified Variable Structure Control algorithm (2013)
Journal Article
Ma, S., Wilkinson, A. J., & Paulson, K. S. (2014). An ultrasonic transducer transient compensator design based on a simplified Variable Structure Control algorithm. Ultrasonics, 54(2), 502-515. https://doi.org/10.1016/j.ultras.2013.07.017

A non-linear control method, known as Variable Structure Control (VSC), is employed to reduce the duration of ultrasonic (US) transducer transients. A physically realizable system using a simplified form of the VSC algorithm is proposed for standard... Read More about An ultrasonic transducer transient compensator design based on a simplified Variable Structure Control algorithm.

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.

Hydrochemical processes in lowland rivers: Insights from in situ, high-resolution monitoring (2012)
Journal Article
Wade, A. J., Palmer-Felgate, E. J., Halliday, S. J., Skeffington, R. A., Loewenthal, M., Jarvie, H. P., Bowes, M. J., Greenway, G. M., Haswell, S. J., Bell, I. M., Joly, E., Fallatah, A., Neal, C., Williams, R. J., Gozzard, E., & Newman, J. R. (2012). Hydrochemical processes in lowland rivers: Insights from in situ, high-resolution monitoring. Hydrology and earth system sciences, 16(11), 4323-4342. https://doi.org/10.5194/hess-16-4323-2012

This paper introduces new insights into the hydrochemical functioning of lowland river systems using field-based spectrophotometric and electrode technologies. The streamwater concentrations of nitrogen species and phosphorus fractions were measured... Read More about Hydrochemical processes in lowland rivers: Insights from in situ, high-resolution monitoring.

The effect of osteocyte apoptosis on signalling in the osteocyte and bone lining cell network: A computer simulation (2012)
Journal Article
Jahani, M., Genever, P. G., Patton, R. J., Ahwal, F., & Fagan, M. J. (2012). The effect of osteocyte apoptosis on signalling in the osteocyte and bone lining cell network: A computer simulation. Journal of biomechanics, 45(16), 2876-2883. https://doi.org/10.1016/j.jbiomech.2012.08.005

Osteocytes play a critical role in the regulation of bone remodelling by translating strain due to mechanical loading into biochemical signals transmitted through the interconnecting lacuno-canalicular network to bone lining cells (BLCs) on the bone... Read More about The effect of osteocyte apoptosis on signalling in the osteocyte and bone lining cell network: A computer simulation.

From existing in situ, high-resolution measurement technologies to lab-on-a-chip – the future of water quality monitoring? (2012)
Journal Article
Wade, A. J., Palmer-Felgate, E. J., Halliday, S. J., Skeffington, R. A., Loewenthal, M., Jarvie, H. P., Bowes, M. J., Greenway, G. M., Haswell, S. J., Bell, I. M., Joly, E., Fallatah, A., Neal, C., Williams, R. J., Gozzard, E., & Newman, J. R. (2012). From existing in situ, high-resolution measurement technologies to lab-on-a-chip – the future of water quality monitoring?. Hydrology and earth system sciences discussions, 9(5), 6457-6506. https://doi.org/10.5194/hessd-9-6457-2012

An LPV pole-placement approach to friction compensation as an FTC problem (2012)
Journal Article
Chen, L., Patton, R., & Klinkhieo, S. (2012). An LPV pole-placement approach to friction compensation as an FTC problem. International Journal of Applied Mathematics and Computer Science, 22(1), 149-160. https://doi.org/10.2478/v10006-012-0011-z

The concept of combining robust fault estimation within a controller system to achieve active Fault Tolerant Control (FTC) has been the subject of considerable interest in the recent literature. The current study is motivated by the need to develop m... Read More about An LPV pole-placement approach to friction compensation as an FTC problem.

Small-vocabulary speech recognition using a silent speech interface based on magnetic sensing (2012)
Journal Article
Hofe, R., Ell, S. R., Fagan, M. J., Gilbert, J., Green, P. D., Moore, R. K., & Rybchenko, S. (2013). Small-vocabulary speech recognition using a silent speech interface based on magnetic sensing. Speech communication, 55(1), 22-32. https://doi.org/10.1016/j.specom.2012.02.001

This paper reports on word recognition experiments using a silent speech interface based on magnetic sensing of articulator movements. A magnetic field was generated by permanent magnet pellets fixed to relevant speech articulators. Magnetic field se... Read More about Small-vocabulary speech recognition using a silent speech interface based on magnetic sensing.

Modeling and analysis of intraband absorption in quantum-dot-in-well mid-infrared photodetectors (2012)
Journal Article
Hong, B. H., Rybchenko, S. I., Itskevich, I. E., Haywood, S. K., Tan, C. H., Vines, P., & Hugues, M. (2012). Modeling and analysis of intraband absorption in quantum-dot-in-well mid-infrared photodetectors. Journal of applied physics, 111(3), 033713. https://doi.org/10.1063/1.3684603

Intraband absorption in quantum-dot-in-a-well (DWELL) mid-infrared photodetectors is investigated using photocurrent spectroscopy and computationally cost-effective modeling linked to experimental data. The DWELL systems are challenging for modeling... Read More about Modeling and analysis of intraband absorption in quantum-dot-in-well mid-infrared photodetectors.

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.

A novel mathematical model of bone remodelling cycles for trabecular bone at the cellular level (2012)
Journal Article
Ji, B., Genever, P. G., Patton, R. J., Putra, D., & Fagan, M. J. (2012). A novel mathematical model of bone remodelling cycles for trabecular bone at the cellular level. Biomechanics and Modeling in Mechanobiology, 11(7), 973-982. https://doi.org/10.1007/s10237-011-0366-3

After an initial phase of growth and development, bone undergoes a continuous cycle of repair, renewal and optimisation by a process called remodelling. This paper describes a novel mathematical model of the trabecular bone remodelling cycle. It is e... Read More about A novel mathematical model of bone remodelling cycles for trabecular bone at the cellular level.

Speech synthesis parameter generation for the assistive silent speech interface MVOCA (2011)
Journal Article
Hofe, R., Ell, S. R., Fagan, M. J., Gilbert, J. M., Green, P. D., Moore, R. K., & Rybchenko, S. I. (2011). Speech synthesis parameter generation for the assistive silent speech interface MVOCA. Proceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH, 3009 - 3012

In previous publications, a silent speech interface based on permanent-magnetic articulography (PMA) has been introduced and evaluated using standard automatic speech recognition techniques. However, word recognition is a task that is computationally... Read More about Speech synthesis parameter generation for the assistive silent speech interface MVOCA.

The measurement of rain kinetic energy and rain intensity using an acoustic disdrometer (2011)
Journal Article
Winder, P., & Paulson, K. S. (2012). The measurement of rain kinetic energy and rain intensity using an acoustic disdrometer. Measurement Science and Technology, 23(1), 015801. https://doi.org/10.1088/0957-0233/23/1/015801

Microwave engineers and geomorphologists require rainfall data with a much greater temporal resolution and a better representation of the numbers of large raindrops than is available from current commercial instruments. This paper describes an acoust... Read More about The measurement of rain kinetic energy and rain intensity using an acoustic disdrometer.

Trends in the incidence of rain height and the effects on global satellite telecommunications (2011)
Journal Article
Paulson, K., & Al-Mreri, A. (2011). Trends in the incidence of rain height and the effects on global satellite telecommunications. IET Microwaves Antennas and Propagation, 5(14), 1710-1713. https://doi.org/10.1049/iet-map.2010.0507

Satellite communications using millimetre waves, in Ka band and above, experience significant fading by rain. Strong attenuation is experienced between the ground station and a level known as the rain height, in ITU-R recommendations assumed to be 36... Read More about Trends in the incidence of rain height and the effects on global satellite telecommunications.