Research Output

2020

On value functions for FCFS queues with batch arrivals and general cost structures

Hyytiä, E., Righter, R., Virtamo, J. & Viitasaari, L., 1 Jan 2020, (Accepted/In press) In : Performance Evaluation. 102083.

Research output: Contribution to journalArticleScientificpeer-review

2019

Indexability of an opportunistic scheduling problem with partial channel information

Aalto, S., Lassila, P. & Taboada, I., 12 Mar 2019, Proceedings of the 12th EAI International Conference on Performance Evaluation Methodologies and Tools, VALUETOOLS 2019. ACM, p. 95-102 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Open Access
File
1 Citation (Scopus)
157 Downloads (Pure)

Near-optimal dispatching policy for energy-aware server clusters

Aalto, S. & Lassila, P., Nov 2019, In : Performance Evaluation. 135, 37 p., 102034.

Research output: Contribution to journalArticleScientificpeer-review

On energy-aware M/G/1-LAS queue with batch arrivals

Lassila, P. & Aalto, S., 1 Nov 2019, In : Operations Research Letters. 47, 6, p. 611-617 7 p.

Research output: Contribution to journalArticleScientificpeer-review

Optimal energy-aware load balancing and base station switch-off control in 5G HetNets

Lassila, P., Gebrehiwot, M. E. & Aalto, S., 4 Aug 2019, In : Computer Networks. 159, p. 10-22 13 p.

Research output: Contribution to journalArticleScientificpeer-review

Performance Degradation in Parallel-Server Systems

Doncel, J., Aalto, S. & Ayesta, U., 1 Apr 2019, In : IEEE/ACM Transactions on Networking. 27, 2, p. 875 - 888 14 p., 8672485.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
3 Citations (Scopus)
155 Downloads (Pure)

Whittle index approach to opportunistic scheduling with partial channel information

Aalto, S., Lassila, P. & Taboada, I., Dec 2019, In : Performance Evaluation. 136, 44 p., 102052.

Research output: Contribution to journalArticleScientificpeer-review

2018

Dynamic Control of Running Servers

Hyytiä, E., Down, D., Lassila, P. & Aalto, S., 2018, Measurement, Modelling and Evaluation of Computing Systems - 19th International GI/ITG Conference, MMB 2018, Proceedings. Vol. 10740 LNCS. p. 127-141 15 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 10740 LNCS).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

4 Citations (Scopus)

Dynamic load balancing in 5G HetNets for optimal performance-energy tradeoff

Gebrehiwot, M., Lassila, P. & Aalto, S., 2018, IFIP Networking 2018 . IEEE, 9 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Open Access
File
1 Citation (Scopus)
117 Downloads (Pure)

Energy vs. QoX network- and cloud services management

Blanco, B., Liberal, F., Lassila, P., Aalto, S., Sainz, J., Gribaudo, M. & Pernici, B., 1 Jan 2018, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). p. 241-268 28 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. LNCS 10768).

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

Open Access
File
79 Downloads (Pure)

Performance of D2D underlay and overlay for multi-class elastic traffic

Osti, P., Lassila, P. & Aalto, S., 2018, In : Computer Communications. 117, p. 147-163 17 p.

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Practical opportunistic content dissemination performance in dense network segments

Kärkkäinen, T., Välimaa, M., Roy, S. K., Hyytiä, E. & Ott, J., 2018, In : Computer Communications. 123, p. 65-80 16 p.

Research output: Contribution to journalArticleScientificpeer-review

State of the art and research challenges in the area of autonomous control for a reliable internet of services

van der Mei, R., van den Berg, H., Ganchev, I., Tutschku, K., Leitner, P., Lassila, P., Burakowski, W., Liberal, F., Arvidsson, Å., Hoβfeld, T., Wac, K., Melvin, H., Grbac, T. G., Haddad, Y. & Key, P., 1 Jan 2018, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). p. 1-22 22 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. LNCS 10768).

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

Open Access
File
3 Citations (Scopus)
97 Downloads (Pure)

Whittle index approach to energy-aware dispatching

Aalto, S. & Lassila, P., 2018, International Teletraffic Congress. IEEE, p. 19 - 27 9 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Open Access
File
1 Citation (Scopus)
98 Downloads (Pure)
2017

Beyond shortest queue routing with heterogeneous servers and general cost functions

Hyytiä, E., Righter, R. & Samelsson, S. G., 5 Dec 2017, Proceedings of the 11th EAI International Conference on Performance Evaluation Methodologies and Tools, VALUETOOLS 2017. ACM, p. 206-213 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Delay- and energy-aware load balancing in ultra-dense heterogeneous 5G networks

Taboada, I., Aalto, S., Lassila, P. & Liberal, F., Sep 2017, In : Transactions on Emerging Telecommunications Technologies. 28, 9, 12 p., e3170.

Research output: Contribution to journalArticleScientificpeer-review

7 Citations (Scopus)

Dispatching fixed-sized jobs with multiple deadlines to parallel heterogeneous servers

Hyytiä, E., Righter, R., Bilenne, O. & Wu, X., 2017, ValueTools 2016 - 10th EAI International Conference on Performance Evaluation Methodologies and Tools. ACM, p. 161 1 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Dispatching fixed-sized jobs with multiple deadlines to parallel heterogeneous servers

Hyytiä, E., Righter, R., Bilenne, O. & Wu, X., 25 May 2017, In : Performance Evaluation. 114, p. 32-44 13 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
4 Citations (Scopus)
121 Downloads (Pure)

Economies of Scale in Parallel-Server Systems

Doncel, J., Aalto, S. & Ayesta, U., 2017, IEEE Conference on Computer Communications: Proceedings : IEEE INFOCOM. IEEE, p. 1350-1358 9 p. (IEEE Conference on Computer Communications).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Open Access
File
2 Citations (Scopus)
145 Downloads (Pure)

Energy-aware SRPT server with batch arrivals: Analysis and optimization

Gebrehiwot, M. E., Aalto, S. & Lassila, P., 1 Oct 2017, In : Performance Evaluation. 115, p. 92-107 16 p.

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)

Energy efficient load balancing in web server clusters

Gebrehiwot, M., Aalto, S. & Lassila, P., 12 Oct 2017, Proceedings of the 29th International Teletraffic Congress (ITC 29). IEEE, p. 13-18 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

5 Citations (Scopus)

Meeting Soft Deadlines in Single- and Multi-Server Systems

Hyytiä, E., Righter, R. & Virtamo, J., Jan 2017, Proceedings of the International Teletraffic Congress: ITC 28. Hossfeld, T., Mark, B. L., Chan, G. & Timm-Giel, A. (eds.). p. 166-174 9 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

6 Citations (Scopus)

Near-Optimal Policies for Energy-Aware Task Assignment in Server Farms

Gebrehiwot, M. E., Aalto, S. & Lassila, P., 10 Jul 2017, Proceedings - 2017 17th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing, CCGRID 2017. IEEE, p. 1017-1026 10 p. 7973810. (IEEE-ACM International Symposium on Cluster Cloud and Grid Computing).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

7 Citations (Scopus)

On the sensitivity of geo-based content sharing to location errors

Ott, J., Karkkainen, L., Walelgne, E. A., Keranen, A., Hyytia, E. & Kangasharju, J., 28 Mar 2017, 2017 13th Annual Conference on Wireless On-Demand Network Systems and Services, WONS 2017 - Proceedings. IEEE, p. 25-32 8 p. 7888691

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Open Access
File
1 Citation (Scopus)
132 Downloads (Pure)

Opportunistic scheduling with flow size information for Markovian time-varying channels

Aalto, S., Lassila, P. & Osti, P., 2017, In : Performance Evaluation. 112, p. 27-52 26 p.

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)

Value (Generating) Functions for the MX/G/1 Queue

Hyytia, E., Righter, R., Virtamo, J. & Viitasaari, L., 10 Oct 2017, Proceedings of the 29th International Teletraffic Congress, ITC 2017. IEEE, Vol. 1. p. 232-240 9 p. 8064360

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

4 Citations (Scopus)
2016

Analysis of the Indexing Gain When Searching in Spontaneous Wireless Networks

Desta, M. S., Hyytiä, E. & Ott, J., 2016, 2016 12TH ANNUAL CONFERENCE ON WIRELESS ON-DEMAND NETWORK SYSTEMS AND SERVICES (WONS). Lo Cigno, R., Psounis, K., Sommer, C., Maccari, L. & Segata, M. (eds.). IEEE, p. 146-153 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Energy-aware control of server farms

Gebrehiwot, M. E., Aalto, S. & Lassila, P., 25 Jul 2016, 2016 39th International Convention on Information and Communication Technology, Electronics and Microelectronics, MIPRO 2016 - Proceedings. IEEE, p. 748-753 6 p. 7522240

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

1 Citation (Scopus)

Energy-aware server with SRPT scheduling: Analysis and optimization

Gebrehiwot, M. E., Aalto, S. & Lassila, P., 3 Aug 2016, Quantitative Evaluation of Systems: 13th International Conference, QEST 2016, Quebec City, QC, Canada, August 23-25, 2016, Proceedings. Agha, G. & Van Houdt, B. (eds.). p. 107-122 16 p. (Lecture notes in computer science; no. 9826).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

4 Citations (Scopus)

Energy-performance trade-off for processor sharing queues with setup delay

Gebrehiwot, M. E., Aalto, S. & Lassila, P., 1 Jan 2016, In : Operations Research Letters. 44, 1, p. 101-106 6 p.

Research output: Contribution to journalArticleScientificpeer-review

16 Citations (Scopus)

On Round-Robin routing with FCFS and LCFS scheduling

Hyytiä, E. & Aalto, S., Mar 2016, In : Performance Evaluation. 97, p. 83-103 21 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
8 Citations (Scopus)
130 Downloads (Pure)

On search and content availability in opportunistic networks

Hyytiä, E., Bayhan, S., Ott, J. & Kangasharju, J., 1 Jan 2016, In : Computer Communications. 73, p. 118-131 14 p.

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

Opportunistic content dissemination performance in dense network segments

Kärkkäinen, T., Välimaa, M., Hyytiä, E. & Ott, J., 2016, Proceedings of the Eleventh ACM Workshop on Challenged Networks: CHANTS '16. ACM, 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Optimal energy-aware control policies for FIFO servers

Gebrehiwot, M. E., Aalto, S. & Lassila, P., 1 Sep 2016, In : Performance Evaluation. 103, p. 41-59 19 p.

Research output: Contribution to journalArticleScientificpeer-review

9 Citations (Scopus)

Performance and optimization of dynamic-TDD intercell coordination with elastic traffic

Osti, P., Aalto, S. & Lassila, P., Dec 2016, In : Telecommunication Systems. 63, 4, p. 655-679 25 p.

Research output: Contribution to journalArticleScientificpeer-review

Performance-energy trade-off in controllable servers with set-up delays

Lu, X., Lassila, P. & Aalto, S., 2016, In : Australian Journal of Electrical and Electronics Engineering. 13, 2, p. 109-121

Research output: Contribution to journalArticleScientificpeer-review

Performance of D2D Underlay and Overlay for Elastic Traffic

Osti, P., Lassila, P. & Aalto, S., 1 Nov 2016, Proceedings of the 19th ACM International Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems (MSWiM '16). Association for Computing Machinery (ACM), p. 270-277 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2 Citations (Scopus)

Queueing with Redundant Requests: Exact Analysis

Gardner, K., Zbarsky, S., Doroudi, S., Harchol-Balter, M., Hyytiä, E. & Scheller-Wolf, A., Aug 2016, In : QUEUEING SYSTEMS. 83, 3-4, p. 227-259 32 p.

Research output: Contribution to journalArticleScientificpeer-review

16 Citations (Scopus)

Routing Jobs with Deadlines to Heterogeneous Parallel Servers

Hyytiä, E. & Righter, R., Jul 2016, In : Operations Research Letters. 44, 4, p. 507-513 7 p.

Research output: Contribution to journalArticleScientificpeer-review

9 Citations (Scopus)

Search in digital pockets: retrieving remote content in mobile opportunistic networks

Bayhan, S., Hyytiä, E., Kangasharju, J. & Ott, J., 1 Jun 2016, In : IEEE WIRELESS COMMUNICATIONS. 23, 3, p. 10-18 9 p., 7498070.

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Whittle index approach to size-aware scheduling for time-varying channels with multiple states

Aalto, S., Lassila, P. & Osti, P., Aug 2016, In : QUEUEING SYSTEMS. 83, 3, p. 195–225 31 p.

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)
2015

Analysis of Hop Limit in Opportunistic Networks by Static and Time-Aggregated Graphs

Bayhan, S., Hyytiä, E., Kangasharju, J. & Ott, J., 2015, IEEE International Conference on Communications (ICC'15), 2015, London, UK, 8.-12, June, 2015.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

9 Citations (Scopus)

Fairness Through Linearly Increasing Holding Costs in Systems of Parallel Servers with Setup Delays

Hyytiä, E. & Righter, R., 2015, 27th International Teletraffic Congress (ITC'27), Gent, Belgium September 8-10, 2015. p. 9

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2 Citations (Scopus)

Minimizing access delay for M2M traffic in multi-RAT HetNets

Osti, P., Aalto, S. & Lassila, P., 2015, 18th Annual International Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems, ACM MSWiM 2015, Cancun, Mexico, 2-6 November 2015. ACM, p. 161-170 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Offload (Only) the Right Jobs: Robust Offloading Using the Markov Decision Processes i

Hyytiä, E., Spyropoulos, T. & Ott, J., 2015, 16th IEEE International Symposium on A World of Wireless, Mobile and Multimedia Networks, WoWMoM 2015, Boston, MA, USA, June 14-17, 2015. p. 9

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

27 Citations (Scopus)

Optimal Routing of Fixed Size Jobs to Two Parallel Servers

Hyytiä, E., 2015, In : INFOR. 4, p. 215-224

Research output: Contribution to journalArticleScientificpeer-review

Reducing Latency via Redundant Requests: Exact Analysis

Gardner, K., Zharsky, S., Doroudi, S., Harchol-Balter, M., Hyytiä, E. & Scheller-Wolf, A., 2015, In : SIGMETRICS PERFORMANCE EVALUATION REVIEW. 43, p. 347-360

Research output: Contribution to journalArticleScientificpeer-review

56 Citations (Scopus)

Two Hops or More: On Hop-Limited Search in Opportunistic Networks

Bayhan, S., Hyytiä, E., Kangasharju, J. & Ott, J., 2015, The 18th ACM International Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems, MSWiM 2015, Cancun, Mexico, 2-6 Nov, 2015. p. 115-124

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

7 Citations (Scopus)

Whittle index approach to size-aware scheduling with time-varying channels

Aalto, S., Lassila, P. & Osti, P., 2015, ACM SIGMETRICS 2015, International Conference on Measurement and Modeling of Computer Systems, Portland, OR, USA, 15-19 June 2015. p. 57-69

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

7 Citations (Scopus)
2014

Analysis of PDCCH performance for M2M traffic in LTE

Osti, P., Lassila, P., Aalto, S., Larmo, A. & Tirronen, T., 2014, In : IEEE Transactions on Vehicular Technology. 63, 9, p. 4357-4371

Research output: Contribution to journalArticleScientificpeer-review

54 Citations (Scopus)