|
|
Publications
Refereed Journal Papers
-
R. Khogali, O. Das and K. Raahemifar: Online
Dispatching and Parallel Processing Algorithms
for Saving Money in Systems with Heterogeneous,
Single-Buffered, Speed-scalable Processors. Applied
Mathematical Modelling, Elsevier, Volume
39, Issues 5-6, March 2015, Pages
1422-1449.
-
S. Senthuran, A. Anpalagan, Hyung Yun
Kong, A. Karmokar and O. Das: An opportunistic
channel access scheme for interweave cognitive
radio systems, KICS/IEEE Journal of
Communications and Networks,16(1), 2014,
pp. 56 - 66.
-
S. Senthuran, A. Anpalagan and O. Das:
Throughput analysis of opportunistic overlay and
underlay access strategies. IEEE Transactions
on Wireless Communications, 11(6),
2012, pp. 2024-2035.
-
Y. Shoaib and O. Das: Web Application
Performance Modeling Using Layered Queueing
Networks. Electronic Notes in Theoretical
Computer Science, Elsevier, 275, 2011, pp.
123-142.
-
S. Senthuran, A. Anpalagan, O. Das: On the
performance of a constellation-rotated
time-spreaded space-frequency coding scheme for
4x1 MISO OFDM transceivers. Wireless Personal
Communications, Springer, 60(2), 2011,
pp. 251-262.
-
G. Franks, T. Al-Omari, M. Woodside, O. Das,
and S. Derisavi: Enhanced modeling and solution
of layered queueing networks. IEEE Transactions
on Software Engineering, 35(2), 2009,
pp.148-161.
-
S. Senthuran, A. Anpalagan and O. Das:
Cooperative subcarrier and power allocation for
a two-hop decode-and-forward OFCDM based relay
network. IEEE
Transactions on Wireless Communications,
8(9), Sept 2009, pp. 4797-4805.
-
O. Das and C. M. Woodside:
Analyzing the Effectiveness of
Fault-Management Architectures in Layered
Distributed Systems, Performance Evaluation, Elsevier, 56, 2004, pp.
93-120.
-
O. Das and C.
M. Woodside: Evaluating layered distributed
software systems with fault-tolerant
features, Performance
Evaluation, Elsevier, 45
(1), 2001, pp. 57-76.
Refereed Book Chapters
- O. Das and C. M. Woodside:
Dependability Modeling of Self-Healing
Client-Server Applications. In R. De Lemos, C.
Gacek, and A. Romanovsky, editors, Architecting
Dependable Systems II, Lecture Notes in Computer
Science (LNCS 3069), 2004, pp. 266-285.
Refereed Conference and Workshop Papers
-
Y. Shoaib and O. Das: Cloud VM provisioning
using analytical performance models. IEEE
International Conference on Cloud Computing
(CLOUD 2019), Milan, Italy, July 2019, 5 pages.
- I. Sheikh and O. Das: Modeling
the Effect of Parallel Execution on Multi-site
Computation Offloading in Mobile Cloud Computing.
European Workshop on Performance Engineering (EPEW
2018), Paris, France, October 2018, pp. 219-234.
-
L. Ferdouse, O. Das and A. Anpalagan: Auction
Based Distributed Resource Allocation for Delay
Aware OFDM Based Cloud-RAN System. IEEE Global
Communications Conference (Globecom 2017),
Singapore, December 2017, pp. 1-6.
- G. Zamani and O. Das. Impact
of a Fault Management Architecture on the
Performance of a Component-based System. European
Dependable Computing Conference (EDCC 2017),
Geneva, Switzerland, September 2017, pp. 87-94.
-
A. Das and O. Das: Novice to Expert continuum
may affect System Response Time. 39th Annual
Conference of the Cognitive Science Society
(CogSci 2017), poster presentation, London, UK,
July 2017, pp. 1878-1883.
-
A. Das and O. Das: Effect Of Human Learning On
Performance Of Cloud Applications. IEEE
International Conference on Cloud Computing
(CLOUD 2017), Hawaii, USA, June 2017, pp.
778-781.
-
P. Sakhamuri and O. Das: Acquisition of Virtual
Machines for Tiered Applications with
Availability Constraints. 18th IEEE
International Symposium on High-Assurance
Systems Engineering (HASE 2017), Singapore,
January 2017, pp. 132-135.
-
O. Das, A. Das: Estimating Response Time
Percentiles of Cloud-based Tiered Web
Applications in presence of VM failures. 12th
International ACM SIGSOFT Conference on the
Quality of Software Architectures (QoSA 2016),
Venice, Italy, April 2016, pp. 1-10.
-
D. Chettiar, A. Das, O. Das: Performance
Modeling of Cloud-based Web Systems to Estimate
Response Time Distribution. Workshop on Software
Architectures for Adaptive Autonomous Systems
(SAAAS 2016) colocated with ISEC 2016, Goa,
India, February 2016, pp. 41-46.
-
R. Khogali and O. Das: Cost Minimization
for Scheduling Parallel, Single-threaded,
Heterogeneous, Speed-scalable Processors. 19th
IEEE International Conference on Parallel and
Distributed Systems (ICPADS 2013), Seoul, Korea,
December 2013, pp. 265-274.
-
R. Khogali and O. Das: Extending Battery Life
of a Multi-buffered, Single-threaded Processor
in a Mobile Computing Device. in SRMPDS workshop
of International Conference on Parallel
Processing (ICPP), Lyon, France, October 2013,
pp. 817-825.
- R. Khogali, O. Das and K.
Raahemifar: Mobile Parallel Computing Algorithms
for Single-Buffered, Speed-Scalable Processors. in
M2A2 workshop of IEEE International Conference on
TrustCom/ISPA/IUCC, Melbourne, Australia, July
2013, pp. 1832 - 1839..
-
Y. Shoaib and O. Das: Using Layered Bottlenecks
for Virtual Machine Provisioning in the Clouds.
IEEE 5th International Conference on Utility and
Cloud Computing (UCC 2012), Chicago, USA,
November 2012, pp. 109-116.
-
R. Paharsingh and O. Das: Availability Analysis
in Virtual Systems, with Applications in Cloud
Computing. Presented at 2nd International
Workshop on Cloud Computing and Scientific
Applications (CCSA), Ottawa, Canada, May 2012.
-
R. Paharsingh and O. Das: An Availability Model
of a Virtual TMR System with Applications in
Cloud/Cluster Computing. IEEE 13th International
Symposium on High-Assurance Systems Engineering
(HASE), Florida, USA, November 2011, pp.261-268.
-
S. Senthuran, A. Anpalagan, O. Das and H-Y. Kong:
Opportunistic Channel Sharing Based on Primary
User Transition Probabilities in Dual Mode
Cognitive Radio Networks. IEEE International Conference on
Communications (ICC), Kyoto, Japan, June 2011,
pp. 1-6.
-
S. H. Razavi and O. Das: Security Evaluation of
Layered Intrusion Tolerant Systems.
International Conference on Analytical and
Stochastic Modelling Techniques and Applications
(ASMTA), Cardiff, UK, June 2010, pp. 145-158.
-
G. Cheng, K. Raahemifar and O. Das: Comparative
Study of Heuristics for Reliability Optimization
of Complex Systems. IEEE
Canadian Conference on Electrical and Computer
Engineering, Calgary, Canada, May 2010,
pp. 1-4.
-
S. H. Razavi, O. Das: Evaluating Security
Measures of a Layered System, IEEE Toronto
International Conference – Science and
Technology for Humanity, Toronto, Canada, Sept
2009, pp. 296-301.
-
S. Sikdar and O. Das: Goal Based Project Scope
Determination, IEEE Toronto International
Conference – Science and Technology for
Humanity, Toronto, Canada, Sept 2009, pp.
415-420.
-
M. F. Kaleem, J. Jiang and O. Das: Performance
Modeling of a 3-Tiered Software System, IEEE
Toronto International Conference – Science and
Technology for Humanity, Toronto, Canada, Sept
2009, pp. 915-918.
-
S. Senthuran, A.
Anpalagan, O. Das and S. Khan: Effect of
cooperative CSI in adaptive subcarrier
allocation for OFCDM based decode-and-forward
relay systems, IEEE Vehicular Technology
Conference, Fall 2009.
-
S. Senthuran, A.
Anpalagan and O. Das: Cooperative power
allocation schemes and BER performance in
decode-and-forward OFCDM based relay networks,
IEEE Vehicular Technology Conference, Fall
2009.
-
S. Senthuran, A.
Anpalagan and O. Das: A predictive
opportunistic access scheme for cognitive
radios, IEEE Vehicular Technology Conference,
Fall 2009.
-
A. Das and O. Das: Performability Of Layered
Systems – Models And Methods, International
Conference on Software Technology and
Engineering (ICSTE 2009), July 2009, pp.
189-193.
-
M. Shaik, O. Das, L. Zhao and Z. Liao:
Inter-Vehicle Range Smoothing for NLOS Condition
in the Persistence of GPS Outages, 4th IEEE
Conference on Industrial Electronics and
Applications (ICIEA), May 2009, pp. 3904-3909.
-
S. Senthuran, A.
Anpalagan and O. Das: A quasi-orthogonal
space-frequency coded OFDM system with time
spreading and constellation rotation, IEEE
Canadian Conference on Electrical and Computer
Engineering: Communications Symposium, St.
John’s, Canada, May 2009, pp. 739-744.
-
S. Sikdar, O. Das: Stakeholder
Appropriate Requirement Development Approach,
IEEE International Advance Computing
Conference (IACC 2009), March 2009, pp. 1670 -
1674.
-
S. Senthuran, A. Anpalagan and O. Das:
Performance analysis of time spreaded
quasi-orthogonal space-frequency coded OFDM
systems. IEEE Biennial Symposium on
Communications, June 2008, pp.182-186.
-
S. Sikdar and O. Das: Case For Enriching
Developer's Toolkit with Goal Oriented
Requirement Methodologies. IEEE Canadian
Conference on Electrical and Computer
Engineering, Niagara Falls, Canada, May 2008,
pp. 743-746.
-
O. Das and A. Das: Fault-tree Based Evaluation
of Tiered Autonomic Systems. IEEE Canadian
Conference on Electrical and Computer
Engineering, Niagara Falls, Canada, May 2008,
pp. 1477-1482.
-
O. Das and A. Das: Performability Evaluation of
Mobile Client-Server Systems. Proceedings of
23rd ACM Symposium on Applied Computing (ACM SAC
2008), Dependable and Adaptive Distributed
Systems Track, Ceara, Brazil, March 2008, pp.
2197-2201.
-
J. Patel and O. Das: A New Model For Evaluating
Performability Under The Effects Of Software
Aging And Rejuvenation, in 11th IASTED
International Conference on Software Engineering
and Applications, Cambridge, Massachusetts, USA,
November 2007, pp. 25-30.
-
O. Das and A. Das: Modeling the Availability of
Client-Server Autonomic Systems, In CASCON 4th
International Workshop on Engineering Autonomic
Software Systems, Toronto, Canada, October 2007.
-
R. Castelino, A. El Kaffas, O. Falou and O.
Das: Modeling of an Iterated Birth/death Markov
Process for Optimization of Radiotherapy
Treatment Planning, In Proc. IEEE Canadian
Conference on Electrical and Computer
Engineering, Ottawa, Canada,
May 2006, pp. 1385 - 1388.
-
O. Das: Dependability Modeling of Clustered
J2EE Applications, 16th IEEE International
Symposium on Software Reliability Engineering
(ISSRE'05), Nov. 2005, pp. 4.10-4.11.
-
O. Das and C. M. Woodside: Computing the
Performability of Layered Distributed Systems
with a Management Architecture, ACM Fourth
International Workshop on Software and
Performance (WOSP 2004), Redwood City,
California, USA, Jan 2004, pp. 174-185.
-
O. Das and C. M. Woodside: The Influence of
Layered System Structure on Strategies for
Software Rejuvenation, Sixth International
Workshop on Performability Modeling of Computer
and Communication Systems (PMCCS-6), Monticello,
Illinois, USA, Sept. 2003, pp. 47-50.
-
O. Das and C. M. Woodside: Layered
Dependability Modeling of an Air Traffic Control
System, IEEE International Conference on
Software Engineering (ICSE 2003) Workshop on
Architecting Dependable Systems, Portland,
Oregon, USA,
May 2003, pp. 50-55.
-
O. Das and C. M. Woodside: Modeling the
Coverage and Effectiveness of Fault-Management
Architectures in Layered Distributed Systems,
IEEE International Conference on Dependable
Systems and Networks (DSN 2002), Bethesda,
Maryland, June 2002, pp. 745-754.
-
O. Das and C. M. Woodside: Evaluation of
Dependable Layered Systems with Fault Management
Architecture, IEEE International Conference on
Software Engineering (ICSE 2002) Workshop on
Architecting Dependable Systems, Orlando,
Florida, May 2002, pp. 49-53.
-
O. Das and C. M. Woodside: Failure Detection
and Recovery Modelling for Multi-layered Service
Systems, Fifth International Workshop on
Performability Modeling of Computer and
Communication Systems (PMCCS-5), Erlangen,
Germany, Sept. 2001, pp. 131-135.
-
O. Das, C. M. Woodside:
The Fault-Tolerant Layered Queueing Network
Model for Performability of Distributed
Systems, IEEE International Performance and
Dependability Symposium (IPDS 98), Durham,
North Carolina, Sept. 1998, pp 132-141. (Cited in the book
Performability Modelling: Techniques and
Tools, edited by B. R. Haverkort, R. Marie,
G. Rubino and K. S. Trivedi, John Wiley, pp.
235, Year of edition 2001).
Other Articles (Abstracts, Posters, Tool
descriptions, Non-refereed papers, etc.)
- M. Rodrigues, R. Castelino, O. Falou, O. Das, A.
El Kaffas, E. Galiano: Modeling Conventional
Radiotherapy Clonogenic Cell Survival for a
Non-specific Tumour type using an iterated
Birth-Death Markov Process. Journal Abstract,
Radiotherapy and Oncology, 84, Supplement 2, S78,
2007.
- M. Rodrigues, R. Costelino, O. Falou, O. Das, A.
El Kaffas, E. Galiano: Modeling Conventional
Radiotherapy Clonogenic Cell Survival for a
Non-specific Tumour Type Using an Iterated
Birth-Death Markov Process. Oral Presentation,
Canadian Association of Radiation
Oncology-Canadian Organization of Medical
Physicists (CARO-COMP) 2007, October 2007.
- E. Galiano, R. Castelino, O. Falou, A. El
Kaffas, M. Rodrigues, O. Das: Modeling of an
Iterated Birth/Death Markov Process for
Optimization of Radiotherapy Treatment
Planning. Conference Abstract, Canadian
Association of Physicists (CAP) Congress 2007,
June 2007.
- S. Senthuran, A. Anpalagan and O. Das: Downlink
MIMO-OFDM Resource Allocation. Proc. International
Conference for Upcoming Engineers (ICUE), Ryerson
University, May 2007.
- S. Senthuran, S. Beheshti, A. Anpalagan and O.
Das: Review of Power Control Techniques using
Kalman Filter in Wireless Communication, Proc.
International Conference for Upcoming Engineers
(ICUE), Ryerson University, May
2007.
- J. Patel and O. Das: Evaluating Performability
of Layered Distributed Systems under the Effects
of Software Aging and Rejuvenation, Proc.
International Conference for Upcoming Engineers
(ICUE), Ryerson University, May
2007.
- R. Castelino et al. and O. Das: Modeling
Radiotherapy using an iterated birth-death Markov
Process with Sharpe software package. Conference
Abstract, Canadian Association of Physicists (CAP)
Congress 2006, June 2006.
- O. Falou, R. Castelino, A. El Kaffas, O. Das:
Modeling Radiotherapy using an Iterated
Birth/Death Markov Process with SHARPE Software
Package, Proc. International Conference for
Upcoming Engineers (ICUE), University of Waterloo, May 2006.
- O. Das and C. M. Woodside: Dependable-LQNS: A
Performability Modeling Tool for Layered Systems,
Illinois
International Multiconference on Measurement,
Modelling, and Evaluation of
Computer-Communication Systems, Urbana and Monticello, Illinois, USA,
Sept. 2003, pp. 17-18.
- O. Das and C. M. Woodside: Dependable LQNS: A
Performability Modeling Tool for Layered Systems,
IEEE International Conference on Dependable
Systems and Networks (DSN 2003), San Francisco,
California, USA, June 2003, pp. 672.
Ph. D. Thesis
- O. Das: Dependability
Modelling of Layered Systems, Ph.D. thesis,
Department of Systems and Computer
Engineering, Carleton University, 2004.
Master's Thesis
- O. Das: Performance and Dependability Analysis
of Fault-Tolerant Layered Distributed Systems,
Master's thesis, Department of Systems and
Computer Engineering, Carleton University, 1998.
|
|