Geoffrey Werner Challen

20042019
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Research Output 2004 2019

Quantifying Process Variations and Its Impacts on Smartphones

Srinivasa, G. P., Haseley, S., Challen, G. W. & Hempstead, M., Apr 22 2019, Proceedings - 2019 IEEE International Symposium on Performance Analysis of Systems and Software, ISPASS 2019. Institute of Electrical and Electronics Engineers Inc., p. 117-126 10 p. 8695655. (Proceedings - 2019 IEEE International Symposium on Performance Analysis of Systems and Software, ISPASS 2019).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Smartphones
Program processors
Energy utilization
Temperature

QoE inference and improvement without end-host control

Nikravesh, A., Chen, Q. A., Haseley, S., Zhu, X., Challen, G. W. & Morley Mao, Z., Dec 6 2018, Proceedings - 2018 3rd ACM/IEEE Symposium on Edge Computing, SEC 2018. Institute of Electrical and Electronics Engineers Inc., p. 43-57 15 p. 8567656

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Application programs
Quality of service
Frequency allocation
Computer operating systems
Telecommunication traffic

Wireless protocol validation under uncertainty

Shi, J., Lahiri, S. K., Chandra, R. & Challen, G. W., Aug 1 2018, In : Formal Methods in System Design. 53, 1, p. 33-53 21 p.

Research output: Contribution to journalArticle

Instrumentation
Uncertainty
Trace
Monitor
NP-completeness

Robust, cost-effective and scalable localization in large indoor areas

Guan, T., Fang, L., Dong, W., Koutsonikolas, D., Challen, G. W. & Qiao, C., Jun 19 2017, In : Computer Networks. 120, p. 43-55 13 p.

Research output: Contribution to journalArticle

Costs

Separated by birth: Hidden differences between seemingly-identical smartphone CPUs

Srinivasa, G. P., Begum, R., Haseley, S., Hempstead, M. & Challen, G. W., Feb 21 2017, HotMobile 2017 - Proceedings of the 18th International Workshop on Mobile Computing Systems and Applications. Association for Computing Machinery, Inc, p. 103-108 6 p. 3032982. (HotMobile 2017 - Proceedings of the 18th International Workshop on Mobile Computing Systems and Applications).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Smartphones
Program processors
Application programs
Packaging
Computer systems