Posts

Technique to Evaluate the Performance of SDN networks

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Al-Sadi A.M., Al-Sherbaz A., Xue J., Turner S. (2019) 
Developing an Asynchronous Technique to Evaluate the Performance of SDN HP Aruba Switch and OVS. 
In: Arai K., Kapoor S., Bhatia R. (eds) Intelligent Computing. SAI 2018. Advances in Intelligent Systems and Computing, vol 857. Springer, Cham
https://doi.org/10.1007/978-3-030-01177-2_41

Abstract
Developers of Software Defined Network (SDN) faces a lack of or difficulty in getting a physical environment to test their inventions and developments that drives them to use a virtual environment for their experiments. This work addresses the differences between the SDN virtual environment and physical SDN switches, which leads to equip a more realistic SDN virtual environment. Consequently, this paper presents a precise performance evaluation and comparison of off-the-shelf SDN devices, HP Aruba 3810M, with Open Virtual Switch (OVS) inside Mininet emulator. This work examines the variability of the path delay, throughput, packet losses and jit…

Impact of Intersection Shapes on Traffic Congestion on Cities

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Al-Dabbagh M.S.M., Al-Sherbaz A., Turner S. (2019) 
The Impact of Road Intersection Topology on Traffic Congestion in Urban Cities. 
In: Arai K., Kapoor S., Bhatia R. (eds) Intelligent Systems and Applications. IntelliSys 2018. Advances in Intelligent Systems and Computing, vol 868. Springer, Cham
https://doi.org/10.1007/978-3-030-01054-6_83

Abstract
Due to the dramatic increase in population and the rapid developments of the automobile industry, tremendous issues have emerged in road traffic systems, such as traffic congestion. In some big cities, traffic congestion occurs due to several factors, such as roadworks, car accidents, and drivers’ behaviour. Consequently, it negatively impacts on environment and economy as well as on the behaviour of drivers and passengers. In this paper, we first identified the factors that may increase the journey time and listed the traffic congestion measurement metrics. Then, we investigate to reveal the relationship of road network topology to the traffi…

Novel WebRTC Signalling Mechanism

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Two recent papers discussing the work of Naktal Edan on WebRTC 




Edan N.M., Al-Sherbaz A., Turner S. (2019) WebNSM: A Novel Scalable WebRTC Signalling Mechanism for One-to-Many Bi-directional Video Conferencing. In: Arai K., Kapoor S., Bhatia R. (eds) Intelligent Computing. SAI 2018. Advances in Intelligent Systems and Computing, vol 857. Springer, Cham 
https://doi.org/10.1007/978-3-030-01177-2_40

Abstract
Web Real-Time Communication (WebRTC) has been interested in many developers for video conferencing. The major aim is to create a scalable WebRTC signalling mechanism called (WebNSM) for bi-directional video conferencing via Ethernet of LAN and WAN networks. WebNSM was designed for many users over star topology (one-to-many) using Socket.io (API) mechanism and various JavaScript methods to handle the default channel among peers and to gain a full duplex connection among the main broadcaster and participants. WebNSM has a novelty while it provides bi-directional video conferencing for un…

Michael - International Changemaker

Dr Michael Opku Agyeman wins International Changemaker of the Year for his work in Ghana.

A second winner for FAST!! Congratulations Dr Michael Opoku Agyeman, International Changemaker of the Year! @scottturneruon@NewsKate@Grifster96 — John M Sinclair (@DeanofFAST) November 12, 2018

Our third group of winners! International Changemaker, Students of the Year, Changemaker Community Initiative of the Year, and SU Changemakers of the Year. Congrats everyone! #ChangemakerAwards2018pic.twitter.com/loBbtFKXZh — Changemaker Hub (@Changemaker_Hub) November 12, 2018
Congratulations Michael - well-deserved award. Another great example of the impact of the Computing Subject team at the University of Northampton


Related links.

Dark-silicon Era for Many-core ArchitecturesDesign space exploration of cache memoryComputing for Social Good 7: Importance of Student VolunteeringTeaching award from the Students - Aldo winsMark Johnson - Lecturer of the yearUniversity helps inspires next generation to get into c…

BCS Northampton Talk: Digital Aviation – e-enabled Aircraft and Implications

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20th November 2018 - Digital Aviation – e-enabled Aircraft and ImplicationsPresented By: Dr Fan, Ip-Shing
The latest generation of aircraft integrates new Internet of Things(IoT) devices and enhanced information capability which can provide information at great speed and volume. Some of the information is already part of the flight data being generated and captured for flight operations. Some data relates to the health of the aircraft, systems and sub-systems that traditionally is for reliability engineering; and of great interest to fleet engineering and MROs. The massive e-enablement of aircraft subsystems heralds the age of Digital Aviation. Issues could be reported in real-time to airline operations and MRO stations to plan solutions and solve issues as soon as the aircraft lands. Effective exploitation of this information requires the necessary information communication and processing equipment, as well as the human skills to take advantage of the information. This presentation ex…

Computational Model to Recognise Emotions of Students with Aspergers

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New paper

A. Dawood, S. Turner and P. Perepa, 
"Affective Computational Model to Extract Natural Affective States of Students with Asperger Syndrome (AS) in Computer-based Learning Environment.," in IEEE Access.
doi: 10.1109/ACCESS.2018.2879619



Abstract: 
This study was inspired by looking at the central role of emotion in the learning process, its impact on students’ performance; as well as the lack of affective computing models to detect and infer affective-cognitive states in real time for students with and without Asperger Syndrome (AS). This model overcomes gaps in other models that were designed for people with autism, which needed the use of sensors or physiological instrumentations to collect data. The model uses a webcam to capture students’ affective-cognitive states of confidence, uncertainty, engagement, anxiety, and boredom. These states have a dominant effect on the learning process. The model was trained and tested on a natural-spontaneous affective dataset for stu…

dark-silicon era for many-core architectures

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A new paper by Ofori-Attah, E., Wang, X. and Opoku Agyeman, M. (2018) A survey of system level power management schemes in the dark-silicon era for many-core architectures. EAI Endorsed Transactions on Industrial Networks and Intelligent Systems.5(15) 2410-0218.
https://doi.org/10.4108/eai.19-9-2018.155569

Abstract:
Power consumption in Complementary Metal Oxide Semiconductor (CMOS) technology has escalated to a point that only a fractional part of many-core chips can be powered-on at a time. Fortunately, this fraction can be increased at the expense of performance through the dark-silicon solution. However, with many-core integration set to be heading towards its thousands, power consumption and temperature increases per time, meaning the number of active nodes must be reduced drastically. Therefore, optimized techniques are demanded for continuous advancement in technology. Existing efforts try to overcome this challenge by activating nodes from different parts of the chip at the expense…