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School of Electronic Engineering and Computer Science
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Dr Athen Ma, BEng PhD

Athen

Senior Lecturer

Email: athen.ma@qmul.ac.uk
Telephone: +44 20 7882 5153
Room Number: Engineering, Eng E101
Office Hours: Wednesday 12:00-14:00

Teaching

Digital Circuit Design (Undergraduate)

The module covers: Number Systems and Codes; Boolean Algebra and Basic Logic Functions; MAP minimisation; Combinational Logic; Synchronous Sequential Logic; VHDL

Modelling and Performance (Postgraduate/Undergraduate)

Background material: probability, conditional probability, Markov models, Queue modelling of OS, e.g. multi-tasking, proof (and uses) of Little's law. Workload modelling: exponential versus Pareto; call centre analysis. Simulation-how to generate random numbers from arbitrary distributions, steady state versus terminating; output analysis; some simple simulation applications. Reliability theory: oriented towards electronic systems, though e.g. passive component failure, and then to microprocessor (embedded software) systems through s/w failures Network Science: introduction to the fundamental ideas in network science: graph theory, network metrics, network models, network robustness. Approach to modelling emergence and topological robustness of supply networks, communication networks and general human-technology interaction.

Research

Research Interests:

Please visit my personal webpage. 


 

Publications

  • Sun Y, Livan G, Ma A et al. (publicationYear). Interdisciplinary researchers attain better long-term funding performance. nameOfConference


  • GRAY C, Ma A, McLaughlin O et al. (2021). Ecological plasticity governs ecosystem services in multilayer networks. nameOfConference


  • Ma A (2018). Ecological networks reveal resilience of agro-ecosystems to changes in farming management. nameOfConference


  • Ma A, Bohan DA, Canard E et al. (2018). A Replicated Network Approach to ‘Big Data’ in Ecology. nameOfConference


  • Xu X, Zhang H-Y, Luo J et al. (2017). Area-corrected species richness patterns of vascular plants along a tropical elevational gradient. nameOfConference


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  • Xu X, Zhang H, Zhang D et al. (2017). Altitudinal patterns of plant species richness in the Honghe region of China. nameOfConference

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  • Zhao L, Zhang H, O'Gorman EJ et al. (2016). Weighting and indirect effects identify keystone species in food webs. nameOfConference


  • Lu X, Gray C, Brown LE et al. (2016). Drought rewires the cores of food webs. nameOfConference


  • Consortium TQ (2016). Networking Our Way to Better Ecosystem Service Provision. nameOfConference


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  • Gray C, Hildrew AG, Lu X et al. (2016). Chapter Ten - Recovery and Nonrecovery of Freshwater Food Webs from the Effects of Acidification. nameOfConference


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  • Gray C, Figueroa DH, Hudson LN et al. (2015). Joining the dots: An automated method for constructing food webs from compendia of published interactions. nameOfConference


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  • Ma A, Mondragón RJ, Latora V (2015). Anatomy of funded research in science. nameOfConference


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  • Poslad S, Ma A, Wang Z et al. (publicationYear). Using a Smart City IoT to Incentivise and Target Shifts in Mobility Behaviour—Is It a Piece of Pie?. nameOfConference


  • Ma A, Mondragón RJ (publicationYear). Rich-Cores in Networks. nameOfConference


  • Ma A, Mondragon RJ (2015). Rich-cores in Networks. nameOfConference


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  • Mulder C, Bennett EM, Bohan DA et al. (2015). 10 years later: Revisiting priorities for science and society a decade after the Millennium Ecosystem Assessment. nameOfConference


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  • Mulder C, Bennett EM, Bohan DA et al. (2015). Chapter One 10 Years Later Revisiting Priorities for Science and Society a Decade After the Millennium Ecosystem Assessment. nameOfConference


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  • Gray C, Baird DJ, Baumgartner S et al. (2014). FORUM: Ecological networks: the missing links in biomonitoring science. nameOfConference


  • Mei H, Ma A, Poslad S et al. (2013). Short Term Traffic Volume Prediction for Sustainable Transportation in Urban Area. nameOfConference


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  • Montoya LV, Ma A, Mondragon RJ (2013). Social Achievement and Centrality in MathOverflow. nameOfConference


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  • Oshin TO, Poslad S, Ma A (2012). A Method to Evaluate the Energy-Efficiency of Wide-Area Location Determination Techniques Used by Smartphones. 2012 IEEE 15th International Conference on Computational Science and Engineering (CSE)


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  • Ma A, Mondragon RJ (2012). Beyond Centrality - Finding vulnerabilities in complex networks. NetSci

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  • Ma A, Mondragon RJ (2012). Evaluation of network robustness using a node tearing algorithm. nameOfConference


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  • Ma A, Poslad S, Oshin TO (2012). Improving the Energy-Efficiency of GPS based Location Sensing Smartphone Applications. 2012 IEEE 11th International Conference on Trust, Security and Privacy in Computing and Communications (TrustCom)


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  • Pinto FC, Videira A, Ma A et al. (2011). Efficient big brother networks. IEEE EUROCOM


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  • Wang Y, Shi S, Yang X et al. (2010). Bluetooth Indoor Positioning using RSSI and Least Square Estimation. International Conference on Future Computer and Communication

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  • Yang X, Wu D, Wang Y et al. (2010). K-Means Based Clustering on Mobile Usage for Social Network Analysis Purpose. Advanced Information Management and Service (IMS), 2010 6th International Conference on

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  • Ariffin SHS, Schormans JA, Ma AHI (2009). Application of the generalised ballot theorem for evaluation of performance in packet buffers with non-first in first out scheduling. nameOfConference


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  • Wang Y, Yang X, Lu N et al. (2009). A Simulation Package for Hot-spot Traffic Relief in WCDMA Networks. Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on


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  • Wang L, De Vial E, Tokarchuk L et al. (2009). Blue Danger: Live action gaming over Bluetooth. nameOfConference


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  • DONG R, TOKARCHUK LN, MA A (2009). Digging Friendship: Paper Recommendation in Social Networks. Proceedings of Networking & Electronic Commerce Research Conference

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  • Wang Y, Yang X, Ma A et al. (2009). Intelligent Resource Optimisation Using Semi-Smart Antennas in LTE OFDMA Systems. Communications Technology and Applications, 2009. ICCTA '09. IEEE International Conference on


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  • Tokarchuk L, Shoop K, Ma A (2009). Using Co-presence Communities to Enhance Social Recommendation. nameOfConference


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  • Chew B, Wang J, Ma A et al. (2008). Anomalous Usage in Web Applications. NAEC

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  • Wang Y, Wu J, Bigham J et al. (2006). Cooperative control of WCDMA system under geographically congested situations. nameOfConference

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  • Wang Y, Ma A, Cuthbert L et al. (2006). A Multi-agent Based Intelligent Wireless Passenger Support system. Networking and Electronic Commerce Research Conference (NAEC)

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  • Wang Y, Ma A, Cuthbert L (2006). Agent Based Cooperation Control over Wireless LAN networks with Semi-Smart Antennas’, IASTED Int’l Conference on Networks and Communication Systems (NCS). IASTED Int’l Conference on Networks and Communication Systems (NCS)

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  • Wang Y, Ma A, Cuthbert L (2006). An Agent-based Passenger Support System over Heterogeneous Wireless Infrastructures in an Airport Environment. IASTED International Conference on Networks and Communication Systems (NCS)

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  • Wang Y, Ma A, Wu J et al. (2006). Cooperative control of WCDMA system under geographically congested situations. 4th IASTED Int’l Conference on Communications, Internet, and Information Technology (CIIT)

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  • Wang Y, Ma A, Cuthbert L (2006). IEEE 802.11 WLAN load balancing using adaptive antennas and cooperative controls. IET International Conference on Wireless Mobile and Multimedia Networks Proceedings (ICWMMN 2006)


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  • Ma AHI, Schormans JA (2005). Fast, stable simulation of power-law packet traffic using concatenated acceleration techniques. nameOfConference


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  • Koutsouris N, Mitrou N, Wang Y et al. (2004). An agent-based system for supporting enhanced services over wireless infrastructures. CCCT'04

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  • Ma A, Schormans J, Cuthbert L (2003). Aggregation technique for networks with power law traffic and application to accelerated simulation. nameOfConference


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  • Leung CM, Schormans JA, Ma AHI (2002). Measurement-based queue length distribution estimation for power-law traffic. nameOfConference


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  • Ma AHI, Schormans JA (2002). Hybrid technique for analysis of multiplexed power-law traffic in broadband networks. nameOfConference


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  • Ma AHI, Schormans JA (2002). Accelerated simulation modelling of Power-law traffic via aggregation. ICT02

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  • Ma AHI, Schormans JA (2002). Efficient simulation modelling for long range dependent traffic. RESIM’02

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  • Ma AHI, Schormans JA (2001). A fast simulation method for modelling IP networks. 17th UKTS

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  • Schormans JA, Pitts JM, Ma AHI et al. (2000). Accurate results for traffic engineering in the presence of LRD. 16th UKTS

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  • Ma AHI, Schormans JA, Pitts JM et al. (2000). Design rules and equivalent capacity for buffering of Pareto source. nameOfConference


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