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Outputs (444)

Rectennas for Thermal-Energy Conversion (2014)
Presentation / Conference Contribution
Pan, Y., Powell, C., & Balocco, C. (2014, September). Rectennas for Thermal-Energy Conversion. Presented at 39th International Conference on Infrared, Millimeter, and THz Waves, Tucson, AZ, USA

We demonstrated the conversion of thermal energy in the form of far- and mid-infrared using a micro rectenna, consisting of a spiral antenna coupled to an ultra-fast nanodiode, the so-called self-switching device (SSD). A maximum efficiency of 0.02 %... Read More about Rectennas for Thermal-Energy Conversion.

Fault Tolerant Quadded Logic Cell Structure with Built-in Adaptive Time Redundancy (2014)
Journal Article
Schiefer, P., McWilliam, R., & Purvis, A. (2014). Fault Tolerant Quadded Logic Cell Structure with Built-in Adaptive Time Redundancy. Procedia CIRP, 22, 127-131. https://doi.org/10.1016/j.procir.2014.07.115

This paper describes research carried out using a quadded logic cell (QLC) structure with the purpose of creating a fault tolerant strategy for stuck-at faults. In order to create the tolerant built-in behaviour, the basic logic elements must have re... Read More about Fault Tolerant Quadded Logic Cell Structure with Built-in Adaptive Time Redundancy.

Self-healing Fuel Pump Controller Mapped into Memory Based Finite State Machine (2014)
Journal Article
Schiefer, P., McWilliam, R., & Purvis, A. (2014). Self-healing Fuel Pump Controller Mapped into Memory Based Finite State Machine. Procedia CIRP, 22, 132-137. https://doi.org/10.1016/j.procir.2014.07.151

This paper describes our on-going research into the design of finite state machines (FSMs) that exhibit self-healing characteristics. The approach adopted here is based on conversion of the traditionally adopted logic hardware design into generic loo... Read More about Self-healing Fuel Pump Controller Mapped into Memory Based Finite State Machine.

The Design of Reliable Circuits Using Logic Redundancy (2014)
Journal Article
Cavalcante, T. C., McWilliam, R., & Purvis, A. (2014). The Design of Reliable Circuits Using Logic Redundancy. Procedia CIRP, 22, 138-141. https://doi.org/10.1016/j.procir.2014.07.017

With the increasing demand for more durable products, the necessity of designing more resilient products is evident. When it comes to electronic systems, many strategies have been applied to enhance the durability and performance of the operating cir... Read More about The Design of Reliable Circuits Using Logic Redundancy.

Optimal MIMO Multicast Transceiver Design for Simultaneous Information and Power Transfer (2014)
Journal Article
Ikhlef, A. (2014). Optimal MIMO Multicast Transceiver Design for Simultaneous Information and Power Transfer. IEEE Communications Letters, 18(12), 2153-2156. https://doi.org/10.1109/lcomm.2014.2366097

We consider transceiver design for a MIMO multicast channel for simultaneous wireless information and power transfer. We assume that common information is intended for a subset of users, called information decoders (IDs), and the other users, called... Read More about Optimal MIMO Multicast Transceiver Design for Simultaneous Information and Power Transfer.

Subset Glauber Dynamics on Graphs, Hypergraphs and Matroids of Bounded Tree-Width (2014)
Journal Article
Bordewich, M., & Kang, R. (2014). Subset Glauber Dynamics on Graphs, Hypergraphs and Matroids of Bounded Tree-Width. Electronic Journal of Combinatorics, 21(4), Article 19

Motivated by the `subgraphs world' view of the ferromagnetic Ising model, we analyse the mixing times of Glauber dynamics based on subset expansion expressions for classes of graph, hypergraph and matroid polynomials. With a canonical paths argument,... Read More about Subset Glauber Dynamics on Graphs, Hypergraphs and Matroids of Bounded Tree-Width.

Adaptive Energy-Efficient Power Allocation in Green Interference Alignment Based Wireless Networks (2014)
Journal Article
Zhao, N., Yu, R., & Sun, H. (2015). Adaptive Energy-Efficient Power Allocation in Green Interference Alignment Based Wireless Networks. IEEE Transactions on Vehicular Technology, 64(9), 4268-4281. https://doi.org/10.1109/tvt.2014.2362005

Interference alignment (IA) is a promising technique for interference management in wireless networks. However, the sum rate may fall short of the theoretical maximum especially at low signal-to-noise ratio (SNR) levels since IA mainly concentrates o... Read More about Adaptive Energy-Efficient Power Allocation in Green Interference Alignment Based Wireless Networks.

Mixing of the Glauber Dynamics for the Ferromagnetic Potts Model (2014)
Journal Article
Bordewich, M., Greenhill, C., & Patel, V. (2016). Mixing of the Glauber Dynamics for the Ferromagnetic Potts Model. Random Structures and Algorithms, 48(1), 21-52. https://doi.org/10.1002/rsa.20569

We present several results on the mixing time of the Glauber dynamics for sampling from the Gibbs distribution in the ferromagnetic Potts model. At a fixed temperature and interaction strength, we study the interplay between the maximum degree (Δ) of... Read More about Mixing of the Glauber Dynamics for the Ferromagnetic Potts Model.

Indoor Massive MIMO Channel Modelling Using Ray-Launching Simulation (2014)
Journal Article
Weng, J., Tu, X., Lai, Z., Salous, S., & Zhang, J. (2014). Indoor Massive MIMO Channel Modelling Using Ray-Launching Simulation. International Journal of Antennas and Propagation, 2014, Article 279380. https://doi.org/10.1155/2014/279380

Massive multi-input multioutput (MIMO) is a promising technique for the next generation of wireless communication networks. In this paper, we focus on using the ray-launching based channel simulation to model massive MIMO channels. We propose one det... Read More about Indoor Massive MIMO Channel Modelling Using Ray-Launching Simulation.

Holographic Lithography (2014)
Presentation / Conference Contribution
Purvis, A., Toriz-Garcia, H., Cowling, J., Williams, G., Seed, N., McWilliam, R., Soulard, F., & Ivey, P. (2014, July). Holographic Lithography. Presented at Imaging and Applied Optics 2014., Seattle, Washington, United States

This review summarises the work of the Durham-Sheffield, UK team working on Holographic Lithography over the last decade. It collates progress in 3D resolution and overall scale of the substrate wiring patterns designed and considers a range of appro... Read More about Holographic Lithography.

Radio propagation studies and spectrum sensing. (2014)
Presentation / Conference Contribution
Salous, S. (2014, May). spectrum sensing. Presented at IET Colloquium on Antennas, Wireless and Electromagnetics 2014, London

The paper presents an overview of the need address the spectrum crunch to deliver higher data rates for future wireless networks. Two techniques which are currently being investigated are the use of dynamic spectrum access and new frequency bands in... Read More about Radio propagation studies and spectrum sensing..

Power Allocation for Conventional and Buffer-Aided Link Adaptive Relaying Systems with Energy Harvesting Nodes (2014)
Journal Article
Ahmed, I., Ikhlef, A., Schober, R., & Mallik, R. (2014). Power Allocation for Conventional and Buffer-Aided Link Adaptive Relaying Systems with Energy Harvesting Nodes. IEEE Transactions on Wireless Communications, 13(3), 1182-1195. https://doi.org/10.1109/twc.2014.012314.121185

In this paper, we consider optimal power allocation for conventional and buffer-aided link adaptive energy harvesting (EH) relay systems, where an EH source communicates with the destination via an EH decode-and-forward relay {over fading channels}.... Read More about Power Allocation for Conventional and Buffer-Aided Link Adaptive Relaying Systems with Energy Harvesting Nodes.

Frequency-Modulated Interrupted Continuous Wave as Wall Removal Technique in Through-the-Wall Imaging (2014)
Journal Article
Fioranelli, F., Salous, S., & Raimundo, X. (2014). Frequency-Modulated Interrupted Continuous Wave as Wall Removal Technique in Through-the-Wall Imaging. IEEE Transactions on Geoscience and Remote Sensing, 52(10), 6272-6283. https://doi.org/10.1109/tgrs.2013.2295835

Undesired wall reflections in through-the-wall imaging can mask the return from actual targets and saturate and block the receiver. We propose frequency-modulated interrupted continuous wave (FMICW) signals as a novel wall removal technique and valid... Read More about Frequency-Modulated Interrupted Continuous Wave as Wall Removal Technique in Through-the-Wall Imaging.

Strategies for self-repairing electronic systems (2013)
Presentation / Conference Contribution
McWilliam, R., & Purvis, A. (2013, December). Strategies for self-repairing electronic systems. Presented at 2nd EPSRC Manufacturing the Future Conference, Cranfield University