Outputs (187)

Speaker Identification: Variations of a Human voice (2020)
Presentation / Conference Contribution
Kinkiri, S., & Keates, S. (2020). Speaker Identification: Variations of a Human voice. In 2020 International Conference on Advances in Computing and Communication Engineering (ICACCE). https://doi.org/10.1109/icacce49060.2020.9154998

Communication is an essential part of human life. We humans use speech (words) to convey information to each other. Vocal tract characteristics in a human voice help identify a speaker. However, human speech signals are language independent and infor... Read More about Speaker Identification: Variations of a Human voice.

Assistive Technology for the Visually Impaired: Optimizing Frame Rate (Freshness) to Improve the Performance of Real-Time Objects Detection Application (2020)
Presentation / Conference Contribution
Barakat, B., Steponenaite, A., Lall, G. S., Arshad, K., Wassell, I. J., & Keates, S. (2020, July). Assistive Technology for the Visually Impaired: Optimizing Frame Rate (Freshness) to Improve the Performance of Real-Time Objects Detection Application. Pre

It has been 100+ years since the world’s first commercial radio station started. This century witnessed several astonishing inventions (e.g. the computer, internet and mobiles) that have shaped the way we work and socialize. With the start of a new d... Read More about Assistive Technology for the Visually Impaired: Optimizing Frame Rate (Freshness) to Improve the Performance of Real-Time Objects Detection Application.

Phonemes: An Explanatory Study Applied to Identify a Speaker (2020)
Presentation / Conference Contribution
Kinkiri, S., Barakat, B., & Keates, S. (2020, July). Phonemes: An Explanatory Study Applied to Identify a Speaker. Presented at MIND: International Conference on Machine Learning, Image Processing, Network Security and Data Sciences, Silchar, India

Speaker Identification (SI) is a process of identifying a speaker automatically via a machine using the speaker’s voice. In SI, one speaker’s voice is compared with n- number of speakers’ templates within the reference database to find the best match... Read More about Phonemes: An Explanatory Study Applied to Identify a Speaker.

A 10:1 Bandwidth Cryogenic Quadruple-Ridged Flared Horn Design for Reflector Antennas in Radio Astronomy (2020)
Journal Article
Ma, Y., See, C. H., Pang, F., Wu, D., Liu, D., Abidin, Z. Z., Keates, S., Peng, B., & Abd-Alhameed, R. A. (2020). A 10:1 Bandwidth Cryogenic Quadruple-Ridged Flared Horn Design for Reflector Antennas in Radio Astronomy. IEEE Access, 8, 81101-81115. https:

A two port 2.4 to 24 GHz cryogenic Quadruple-Ridged Flared Horn (QRFH) Feed with 10:1 impedance bandwidth is selected for presentation and investigation in this paper. The antenna geometry is formed by using simulation-based optimization which s... Read More about A 10:1 Bandwidth Cryogenic Quadruple-Ridged Flared Horn Design for Reflector Antennas in Radio Astronomy.

How to Measure the Average and Peak Age of Information in Real Networks? (2019)
Presentation / Conference Contribution
Barakat, B., Yassine, H., Keates, S., Wassell, I., & Arshad, K. (2019, May). How to Measure the Average and Peak Age of Information in Real Networks?. Presented at European Wireless 2019, Aarhus, Denmark

The Age of information (AoI) was proposed in the literature to quantify the freshness of information. The majority of the work done in this area has theoretically evaluated AoI and its Peak (PAoI). In this paper, a method for obtaining the value of A... Read More about How to Measure the Average and Peak Age of Information in Real Networks?.

Modelling IoT devices communication employing representative operation modes to reveal traffic generation characteristics (2019)
Journal Article
Barakat, B., Keates, S., Wassell, I. J., & Arshad, K. (2021). Modelling IoT devices communication employing representative operation modes to reveal traffic generation characteristics. International Journal of Parallel, Emergent and Distributed Systems, 3

Several traffic models for the Internet of Things (IoT) have been proposed in the literature. However, they can be considered as heuristic models since they only reflect the stochastic characteristic of the generated traffic. In this paper, we propos... Read More about Modelling IoT devices communication employing representative operation modes to reveal traffic generation characteristics.

Adaptive Status Arrivals Policy (ASAP) Delivering Fresh Information (Minimise Peak Age) in Real World Scenarios (2019)
Presentation / Conference Contribution
Barakat, B., Keates, S., Wassell, I., & Arshad, K. (2019, July). Adaptive Status Arrivals Policy (ASAP) Delivering Fresh Information (Minimise Peak Age) in Real World Scenarios. Presented at HCII: International Conference on Human-Computer Interaction, Or

Real-time systems make their decisions based on information communicated from sensors. Consequently, delivering information in a timely manner is critical to such systems. In this paper, a policy for delivering fresh information (or minimising the Pe... Read More about Adaptive Status Arrivals Policy (ASAP) Delivering Fresh Information (Minimise Peak Age) in Real World Scenarios.

Universal Access: The Challenges Ahead (2019)
Presentation / Conference Contribution
Keates, S. (2019). Universal Access: The Challenges Ahead. In Universal Access in Human-Computer Interaction. Theory, Methods and Tools (100-112). https://doi.org/10.1007/978-3-030-23560-4_8

It is approaching 20 years since the first issue of the International Journal on Universal Access was published and also that the first International Conference on Universal Access in Human-Computer Interaction was held. This paper reflects on how th... Read More about Universal Access: The Challenges Ahead.

Is the Zero-Wait Policy Always Optimum for Information Freshness (Peak Age) or Throughput? (2019)
Journal Article
Barakat, B., Keates, S., Wassell, I., & Arshad, K. (2019). Is the Zero-Wait Policy Always Optimum for Information Freshness (Peak Age) or Throughput?. IEEE Communications Letters, 23(6), 987-990. https://doi.org/10.1109/LCOMM.2019.2907935

The Zero-Wait (ZW) policy is widely held to achieve maximum information 'freshness', i.e., to achieve minimum Peak Age (PA) and maximum throughput, for real-time Internet-of-Things applications. In this paper, it was shown through a series of experim... Read More about Is the Zero-Wait Policy Always Optimum for Information Freshness (Peak Age) or Throughput?.

Deriving Machine to Machine (M2M) Traffic Model from Communication Model (2019)
Presentation / Conference Contribution
Barakat, B., Keates, S., Arshad, K., & Wassell, I. J. (2019). Deriving Machine to Machine (M2M) Traffic Model from Communication Model. In The Fifth International Symposium on Innovation in Information and Communication Technology (ISIICT 2018) (27-31).

The typical traffic models proposed in literature can be considered as heuristic models since they only reflect the stochastic characteristic of the generated traffic. In this paper, we propose a model for M2M communications that generates the traffi... Read More about Deriving Machine to Machine (M2M) Traffic Model from Communication Model.