Imperial College London

DrCatherineMulligan

Business School

Research Fellow
 
 
 
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Contact

 

+44 (0)20 7594 2916c.mulligan

 
 
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Location

 

Business School BuildingSouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

24 results found

Mulligan CEA, Briscoe G, Fullarton Pegg F, Lockwood Jet al., Designing Future Economies: Boundary Objects for Visualising Sustainable Innovation, International Journal for Art and Design Education Conference

CONFERENCE PAPER

Mulligan CEA, Fullarton Pegg F, Briscoe G, Lockwood J, Freer Det al., Artefact as Bridging Concept for Designing Future Economics, ACM Computer-Human Interaction

CONFERENCE PAPER

Mulligan CEA, spanaki D, Gurguc Z, Adams Ret al., Data Supply Chain (DSC): Research Synthesis and Future Directions, International Journal of Production Research, ISSN: 0020-7543

JOURNAL ARTICLE

Zamyatin A, Wolter K, Werner S, Mulligan CEA, Harrison PG, Knottenbelt WJet al., Swimming with fishes and sharks: beneath the surface of queue-based ethereum mining pools, 25th Annual Meeting of the IEEE International Symposium on Modelling, Analysis and Simulation of Computer and Telecommunication Systems, Publisher: IEEE

Cryptocurrency mining can be said to be the modernalchemy, involving as it does the transmutation of electricityinto digital gold. The goal of mining is to guess the solutionto a cryptographic puzzle, the difficulty of which is determinedby the network, and thence to win the block reward andtransaction fees. Because the return on solo mining has a veryhigh variance, miners band together to create so-called miningpools. These aggregate the power of several individual miners,and, by distributing the accumulated rewards according to somescheme, ensure a more predictable return for participants.In this paper we formulate a model of the dynamics of a queue-based reward distribution scheme in a popular Ethereum miningpool and develop a corresponding simulation. We show that theunderlying mechanism disadvantages miners with above-averagehash rates. We then consider two-miner scenarios and show howlarge miners may perform attacks to increase their profits at theexpense of other participants of the mining pool. The outcomes ofour analysis show the queue-based reward scheme is vulnerableto manipulation in its current implementation.

CONFERENCE PAPER

Spanaki K, Adams R, Mulligan C, Lupu Eet al., 2016, Data Supply Chain (DSC): development and validation of a measurement instrument, 23rd EurOMA Conference

The volume and availability of data produced and affordably stored has become animportant new resource for building organizational competitive advantage. Reflectingthis, and expanding the concept of the supply chain, we propose the Data Supply Chain(DSC) as a novel concept to aid investigations into how the interconnected datacharacteristics relate to and impact organizational performance. Initially, we define theconcept and develop a research agenda on DSC coupling theoretical background ofstrategy and operations literature. Along with the conceptualization, we develop a set ofpropositions and make suggestions for future research including testing and validatingthe model fit.

CONFERENCE PAPER

Spanaki K, Adams R, Mulligan C, Lupu Eet al., 2016, A Research Agenda on Data Supply Chains (DSC), British Academy of Management (BAM) Conference

Competition among organizations supports initiatives and collaborative use of data whilecreating value based on the strategy and best performance of each data supply chain.Supporting this direction, and building on the theoretical background of the supply chain, wepropose the Data Supply Chain (DSC) as a novel concept to aid investigations for data-drivencollaboration impacting organizational performance. In this study we initially propose adefinition for the DSC paying particular attention to the need for collaboration for the supplychains of data. Furthermore, we develop a conceptual model of DSC collaboration couplingtheoretical background of strategy and operations literature including, the resource-basedview (RBV), supply chain management (SCM) and collaboration (SCC). Finally, we setpropositions and a future research agenda including testing and validating the model fit.

CONFERENCE PAPER

Mulligan CEA, Tsiatsis V, Karnouskos S, Avesand S, Fikouras I, Höller Jet al., 2014, Machine-2-Machine and IoT Technologies, ISBN: 9780124076846

BOOK

Mulligan CEA, Olsson M, 2013, Architectural Implications of Smart City Business Models: An Evolutionary Perspective, IEEE Communications Magazine, Vol: 51

Smart cities have rapidly become a hot topic within technology communities, and promise both improved delivery of services to end users and reduced environmental impact in an era of unprecedented urbanization. Both large hightech companies and grassroots citizen-led initiatives have begun exploring the potential of these technologies. Significant barriers remain to the successful rollout and deployment of business models outlined for smart city applications and services, however. Most of these barriers pertain to an ongoing battle between two main schools of thought for system architecture, ICT and telecommunications, proposed for data management and service creation. Both of these system architectures represent a certain type of value chain and the legacy perspective of the respective players that wish to enter the smart city arena. Smart cities services, however, utilize components of both the ICT industry and mobile telecommunications industries, and do not benefit from the current binary perspective of system architecture. The business models suggested for the development of smart cities require a longterm strategic view of system architecture evolution. This article discusses the architectural evolution required to ensure that the rollout and deployment of smart city technologies is smooth through acknowledging and integrating the strengths of both the system architectures proposed.

JOURNAL ARTICLE

Mulligan CEA, Jakobsson S, Unmehopa M, 2012, Research and reality: The evolution of Open Network API standards, Communications (ICC), 2012 IEEE International Conference, ISSN: 1550-3607

This document investigates the evolution of the Open Network Application Programming Interfaces (APIs) from a research and industrial perspective over the last 15 years. It provides insight into the work currently ongoing in the Open Mobile Alliance (OMA) and GSM Association (GSMA) with regards to creating developer friendly APIs and delivering them to the market. Finally, it outlines the current research ongoing within the Open API sphere and provides some recommendations for the standardization forums of the communications industries in order to more fully align with this work.

CONFERENCE PAPER

Olsson M, Mulligan CEA, Frid L, Sultana S, Rommer Set al., 2012, Epc and 4g Packet Networks: Driving the Mobile Broadband Revolution, Publisher: Academic Press, ISBN: 9780123945952

This book - a new edition of SAE and the Evolved Packet Core - provides clear, concise and comprehensive coverage of the entire SAE/ EPC architecture, explaining concepts and standards and how they are used in commercial service settings.

BOOK

Mortier R, Mulligan CEA, 2011, ., Platforms in the palm of your hand: Mobile value chain evolution, Intelligence in Next Generation Networks (ICIN), 2011: 15th International Conference

CONFERENCE PAPER

Mulligan C, 2011, The Communications Industries in the Era of Convergence, Publisher: Routledge, ISBN: 9780415584845

This book provides a unique view of the evolution of these industries, drawing out how technology and economic forces have worked together to create platforms around which different companies interact.

BOOK

Mulligan CEA, 2011, Making sense of the new data streams, Publisher: Ericsson Business Review

REPORT

Mulligan CEA, Arup, Accenture, The Climate Groupet al., 2011, Information Marketplaces: The new economics of cities

REPORT

Mulligan CEA, Mortier R, Houghton R, Rahemtulla H, Flintham M, Nord Cet al., 2011, Standardisation strategies for the android platform: The Politics of the stack, Intelligence in Next Generation Networks (ICIN), 2011: 15th International Conference

CONFERENCE PAPER

Noldus R, Olsson U, Mulligan C, Fikouras I, Ryde A, Stille Met al., 2011, IMS Application Developer's Handbook, Publisher: Academic Press, ISBN: 9780123821935

The authors of this book bring their in-depth and extensive knowledge in the organizations involved in the IMS standardization and its architecture.

BOOK

Holm T, Mulligan CEA, Nordin H, 2010, Facilitating subscription services in the IMS

A method of starting a third party application subscription in a set of Application Servers located within an IP Multimedia Subsystem network. The method comprises receiving a subscription start request at one of said Application Servers, the request including subscription data

PATENT

Mulligan C, olsson M, 2010, Inter-access network topology discovery, US 7940726

PATENT

Mulligan C, Olsson M, Olsson U, 2009, Method, a Media Server, Computer Program and Computer Program Product For Combining a Speech Related to a Voice Over IP Voice Communication Session Between User Equipments, in Combination With Web Based Applications

PATENT

Mulligan CEA, 2009, Open API standardization for the NGN platform, IEEE Communications Magazine, Vol: 47, Pages: 108-113, ISSN: 0163-6804

JOURNAL ARTICLE

Olsson M, Sultana S, Rommer S, Frid L, Mulligan Cet al., 2009, SAE and the Evolved Packet Core: Driving the Mobile Broadband Revolution, ISBN: 9780123748263

Up-to-date coverage of SAE including the latest standards development.

BOOK

Mulligan CEA, 2008, Embracing Open Source Methods for the Standardization of NGN Services and Enablers, NGMAST '08 Proceedings of 2008: The Second International Conference on Next Generation Mobile Applications, Services, and Technologies, pp 628-633

JOURNAL ARTICLE

Brooks A, Utbult F, Mulligan CEA, Jefferey Ret al., 2000, Early Lifecycle Work: Influence of Individual Characteristics, Methodological Constraints, and Interface Constraints, Journal of Empirical Software Engineering, Vol: 3, Pages: 269-285

JOURNAL ARTICLE

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