Publications
Journals
Mobile Web
Browsing Under Memory Pressure (NEW*)
Ihsan Ayyub
Qazi, Zafar Ayyub Qazi, T. Benson, Ehsan Latif, Abdul Manan, G. Murtaza, Abrar
Tariq
ACM SIGCOMM Computer Communication Review (CCR), October
2020
RecFlow:
SDN-based Receiver-driven Flow Scheduling in Datacenters
Aadil Zia
Khan and Ihsan Ayyub Qazi
Cluster Computing, 2019
Efficient
Load Balancing Over Asymmetric Datacenter Topologies
Syed
M. Irteza, Hafiz Mohsin Bashir, Talal Anwar, Ihsan Ayyub Qazi, Fahad R. Dogar
Elsevier Computer
Communications,
May 2018
Inside the
Walled Garden: Deconstructing Facebook's Free Basics Program [PDF] [BIBTEX]
Rijurekha
Sen, Sohaib Ahmad, Amreesh Phokeer, Zaid Farooq, Ihsan Ayyub Qazi, David
Choffnes, Krishna Gummadi
ACM SIGCOMM Computer
Communication Review (CCR), October 2017 (Best
Paper Award)
PASE: Synthesizing Existing Transport Strategies for
Datacenter Networks [PDF] [BIBTEX]
Ali Munir, Ghufran Baig, Syed M. Irteza, Ihsan Ayyub
Qazi, Alex Liu, Fahad R. Dogar
IEEE/ACM Transactions
on Networking, 25(1): 320-334, February 2017
Low-Carb: A Practical Scheme for Improving Energy
Efficiency in Cellular Networks
M. Saqib Ilyas, Ihsan
Ayyub Qazi, Bilal Rassool, Zartash Afzal Uzmi
Elsevier Computer
Communications,
94: 72-84, 2016
Congestion control with multi-packet feedback [PDF] [BIBTEX]
Ihsan Ayyub Qazi, Lachlan
Andrew, and Taieb Znati
IEEE/ACM Transactions on Networking, 20(6), pp. 1721-1733, December 2012
On the Design of Load Factor based Congestion
Control Protocols for Next-Generation Networks [PDF] [BIBTEX]
Ihsan Ayyub Qazi and Taieb
Znati
Elsevier Computer
Networks Journal,
55(1), pp. 45-60, 2011
Conferences/Workshops
Using Self Attention DNNs (Deep Neural Networks) to Discover Phonemic
Features for Audio Deep Fake Detection (NEW*)
Hira Yasin Dhamyal, Ayesha Ali, Ihsan Ayyub Qazi, and Agha Ali Raza
IEEE Automatic Speech Recognition and Understanding (ASRU) 2021, Colombia, December 2021
Rethinking Web for Affordability and Inclusion (NEW*)
Ihsan Ayyub Qazi, Zafar Ayyub Qazi, Ayesha Ali, Muhammad Abdullah,
Rumaisa Habib
ACM HotNets 2021, November 2021 (acceptance
rate = 31%)
Fake Audio Detection in Resource-constrained Settings using Microfeatures (NEW*)
Hira Yasin
Dhamyal, Ayesha Ali, Ihsan Ayyub Qazi and Agha Ali Raza
INTERSPEECH 2021, Czech Republic, August-September 2021
Deconstructing
Google's Web Light Service (NEW*)
Ammar Tahir, Muhammad
Tahir Munir, Shaiq Munir Malik, Zafar Ayyub Qazi and Ihsan Ayyub Qazi
WWW 2020,
Taipei, April 2020 (acceptance rate = 19%)
MissIt: Using
Missed Calls for Free, Extremely Low Bit-Rate Communication in Developing
Regions (NEW*)
Ihsan Ayyub
Qazi*, Fahad Dogar*, Ali Raza Tariq, Ghulam Murtaza, Abeer Ahmad, Nathan
Stocking
ACM CHI 2020,
Honolulu, USA, April 2020 (acceptance rate = 24%)
*Joint first authors
Understanding
the Effect of Digital Literacy on the Spread of Misinformation: Evidence from
Pakistan
Ayesha Ali
and Ihsan Ayyub Qazi
AEA Annual Meetings, January 2020 (accepted for poster presentation)
The Economic
Impact of Internet Censorship
Ayesha Ali
and Ihsan Ayyub Qazi
AEA Annual Meetings, January 2020 (accepted for poster presentation)
Reducing Tail
Latency using Duplication: A Multi-Layered Approach
H. M. Bashir,
Abdullah Bin Faisal, A. Jamshed, P. Vondras, Ali Musa, Ihsan A. Qazi, Fahad
Dogar
ACM CoNEXT 2019, Orlando, USA, December 2019 (acceptance rate =
17%)
Device-Aware
Adaptive Video Streaming
Arsalan Ali
Jumani, Fizza Zafar, Zafar Ayyub Qazi, Ihsan Ayyub Qazi
ACM SIGCOMM 2019, China, August 2019 (poster)
Scylla:
Interleaving Multiple IoT Stacks on a Single Radio [PDF] [BIBTEX]
Hassan Iqbal, Hamad Alizai, Ihsan Ayyub
Qazi, Olaf Landsiedel, Zartash Afzal Uzmi
ACM CoNEXT 2018,
Greece, December 2018 (acceptance rate: 17%)
Workload
Adaptive Flow Scheduling [PDF] [BIBTEX]
Abdullah Bin Faisal, H. Mohsin Bashir,
Ihsan Ayyub Qazi, Zartash Uzmi, Fahad R. Dogar
ACM CoNEXT 2018,
Greece, December 2018 (acceptance rate: 17%)
Incentivizing
Censorship Measurements via Circumvention [PDF] [BIBTEX]
Aqib Nisar, Aqsa Kashaf, Ihsan Ayyub
Qazi, Zartash Afzal Uzmi
ACM SIGCOMM 2018,
Budapest, Hungary, August 2018 (acceptance rate: 18%)
Can We Design
Ethically Sound Yet Effective Internet Censorship Measurement Platforms? [PDF] [BIBTEX]
Ihsan Ayyub
Qazi
NSDI 2018,
Renton, USA, April, 2018 (poster paper)
Online
Advertising under Internet Censorship [PDF] [BIBTEX]
Hira Javaid, H. Kamran
Khalil, Zartash Afzal Uzmi, Ihsan Ayyub Qazi
ACM HotNets 2017,
Palo Alto, USA, November 2017 (acceptance
rate: 21.8%)
An Empirical
Analysis of Facebook`s Free Basics Program [PDF] [BIBTEX]
Rijurekha
Sen, Siddharth Singh, Vedant Nanda, Sohaib Ahmad, S. Sengupta, Amreesh Phokeer,
Zaid Farooq, Taslim Khan, P. Kumaraguru, Ihsan Qazi, David Choffnes, Krishna P.
Gummadi
ACM SIGMETRICS 2017,
Urbana-Champaign, Illinois, USA, June 2017
(poster paper)
DRIBS: Flow
Scheduling over Asymmetric Datacenter Topologies [PDF] [BIBTEX]
Tooba Ahsen,
Fatima Tariq, Muhammad Tirmazi, Ifrah Idrees, Zafar Qazi, Ihsan Ayyub Qazi,
Zartash Uzmi
NSDI 2017,
Boston, USA, March, 2017 (poster paper)
Load
Balancing Over Symmetric Virtual Topologies [PDF] [BIBTEX] [TALK SLIDES]
Syed M.
Irteza, Hafiz Mohsin Bashir, Talal Anwar, Ihsan Ayyub Qazi, Fahad R. Dogar
IEEE INFOCOM 2017,
Atlanta, USA, May, 2017 (acceptance rate=20.9%)
Receiver-driven
Flow Scheduling for Commodity Datacenters [PDF] [BIBTEX]
[TALK SLIDES]
Aadil Zia
Khan and Ihsan Ayyub Qazi
IEEE ICC 2017,
Paris, France, 21-25 May, 2017
SlickFi: A Service
Differentiation Scheme for High-Speed WLANs [PDF] [BIBTEX]
Kamran
Nishat, Farrukh Javed, Saim Salman, Nofel Yaseen, Ans Fida, Ihsan Ayyub Qazi
ACM CoNEXT 2016, Irvine, USA, December 2016 (acceptance rate: 18%)
Towards a
Redundancy Aware Network Stack [PDF] [BIBTEX]
Ali Musa Iftikhar, Fahad Rafique Dogar, Ihsan Ayyub Qazi
ACM HotNets 2016, Atlanta, USA, November 2016 (acceptance rate:
27.8%)
A View from
the Other Side: Understanding Mobile Phone Characteristics in the Developing
World [PDF] [BIBTEX]
Sohaib Ahmad, Abdul Lateef Haamid, Zafar Ayyub Qazi, Zhenyu Zhou, Theophilus
Benson, Ihsan Ayyub Qazi
ACM IMC, 2016,
Santa Monica, USA, November 2016 (acceptance
rate: 25%)
A Case for
Marrying Censorship Measurements with Circumvention [PDF] [BIBTEX]
Aqib Nisar, Aqsa Kashaf, Zartash Afzal
Uzmi, Ihsan Ayyub Qazi
ACM HotNets 2015,
Philadelphia, USA, November 2015 (acceptance rate: 18%)
eSDN: Rethinking
Datacenter Transports Using End-Host SDN Controllers [PDF] [BIBTEX]
Hasnain Ali Pirzada, M. Raza Mahboob,
Ihsan Ayyub Qazi
ACM SIGCOMM 2015,
London, UK, August 2015 (poster paper)
Mitigating Datacenter
Incast Congestion Using RTO Randomization [PDF] [BIBTEX]
Ubaid Ullah
Hafeez, Aqsa Kashaf, Qurat-ul-ann Bajwa, Aisha Mushtaq, Hassan Zaidi, Ihsan
Ayyub Qazi, Zartash Afzal Uzmi
IEEE GLOBECOM 2015, San Diego, CA, USA, December 2015
Friends, not
Foes - Synthesizing Existing Data Center Transport Strategies in PASE [PDF] [BIBTEX]
Ali Munir, Ghufran Baig, Syed Irteza,
Ihsan Ayyub Qazi, Fahad Dogar, Alex Liu
ACM SIGCOMM 2014,
Chicago, USA August 2014 (acceptance rate: 19%)
Rethinking Buffer Management in Data Center Networks
[PDF] [BIBTEX]
Aisha Mushtaq, Asad Khalid Ismail, Abdul Wasay,
Bilal Mahmood, Ihsan Ayyub Qazi, Zartash Afzal Uzmi
ACM SIGCOMM 2014, Chicago, USA August 2014 (poster
paper)
Loss Differentiation: Moving onto High-Speed
Wireless LANs [PDF] [BIBTEX]
Ruwaifa Anwar, Kamran
Nishat, Mohsin Ali, Zahaib Akhtar, Haseeb Niaz, and Ihsan Ayyub Qazi
IEEE INFOCOM 2014, Toronto, Canada April/May 2014 (acceptance
rate: 19%)
On the Coexistence of Transport Protocols in Data
Centers [PDF] [BIBTEX]
Syed Mohammad Irteza,
Adnan Ahmed, Sana Farrukh, Babar Naveed Memon, and Ihsan Ayyub Qazi
IEEE ICC 2014, Sydney, Australia, June 2014
On the Effectiveness of High-Speed WLAN Standards
for Long Distance Communication [PDF] [BIBTEX]
Kamran Nishat, Ruwaifa
Anwar, Ahmed Mehfooz, Bilal Zaidi, Haris Choudhary, and Ihsan Ayyub Qazi
IEEE INFOCOM 2014, Toronto, Canada April/May 2014
(poster paper)
Rate Equilibria in WLANs with Block ACKs [PDF] [BIBTEX]
Suong H. Nguyen, Ihsan Ayyub Qazi, Lachlan L. H.
Andrew, and Hai Le Vu
IEEE LCN 2013, Sydney,
Australia, October 2013
SplitBuff: Improving the Interaction of Heterogeneous
RTT Flows on the Internet [PDF] [BIBTEX]
Shahida
Jabeen, Muhammad Bilal Zafar, Ihsan Ayyub Qazi, and Zartash Afzal Uzmi
IEEE ICC 2013, Budapest,
Hungary, June 2013
On Achieving Low Latency in Data Centers [PDF] [BIBTEX]
Ali
Munir, Ihsan Ayyub Qazi, and S. Qaisar
IEEE ICC 2013, Budapest,
Hungary, June 2013
Minimizing Flow Completion Times in Data Centers [PDF] [BIBTEX]
[TALK SLIDES]
Ali Munir, Ihsan Ayyub Qazi, Zartash Afzal Uzmi,
Aisha Mushtaq, Saad Naveed Ismail, M. Safdar Iqbal, and Basma Khan
IEEE INFOCOM 2013, Turin, Italy, April 2013 (acceptance
rate=17%)
BLMon: A Loss Differentiation Scheme for 802.11n [PDF] [BIBTEX]
Zahaib Akhtar, Kamran
Nishat, Haseeb Niaz, Ruwaifa Anwar, Mohsin Ali, and Ihsan Ayyub Qazi
IEEE INFOCOM 2013, Turin, Italy, April 2013 (poster
paper)
Markovian Models for Electrical Load Prediction in
Smart Buildings [PDF] [BIBTEX]
Muhammad Kumail Haider, Asad Khalid Ismail, and
Ihsan Ayyub Qazi
ICONIP 2012, Doha,
Qatar, Nov 2012
Improving Performance of Router-Assisted Transport
Protocols over Variable Capacity Links [PDF] [BIBTEX]
Ihsan
Ayyub Qazi, Taieb Znati, and Daniel Mosse
IEEE ICC 2012, Ottawa,
Canada, June 2012
Using GENI to Evaluate Congestion Control Protocols
for Next-Generation Networks [PDF] [BIBTEX]
Ihsan Ayyub Qazi and Rami
Melhem
GENI Experimenters
Workshop (GEW),
Princeton University, NJ, June 2010
Incremental deployment of new ECN-compatible
congestion control [PDF] [BIBTEX]
Ihsan Ayyub Qazi, Lachlan Andrew and Taieb Znati
PFLDNeT 2009, Tokyo,
Japan, May 2009
Congestion Control using Efficient Explicit Feedback [PDF] [BIBTEX]
Ihsan Ayyub Qazi, Lachlan
Andrew and Taieb Znati
IEEE INFOCOM 2009, Rio de Janeiro, Brazil, April 2009
(acceptance rate=19.7%)
Two bits are enough [PDF] [POSTER] [BIBTEX]
Ihsan Ayyub Qazi, Lachlan
Andrew and Taieb Znati
ACM SIGCOMM 2008, Seattle, WA, August 2008
On the Design of Load Factor based Congestion
Control Protocols for Next-Generation Networks [PDF] [BIBTEX] NOTE
Ihsan Ayyub Qazi and Taieb
Znati
IEEE INFOCOM 2008, Phoenix, AZ, April 2008 (acceptance
rate=20%)
Dissertation
An
Efficient Framework of Congestion Control for Next-Generation Networks
[LINK] [AMAZON] [BIBTEX]
Ihsan
Ayyub Qazi
Ph.D. Dissertation, University of Pittsburgh, Pittsburgh,
PA USA, August 2010.
Technical
Reports/Other Articles
Designing
Experiments using GENI Cluster B [PDF] [BIBTEX]
Ihsan
Ayyub Qazi
GENI Project Office, BBN Technologies, Cambridge, MA, August
2009
Insights into the Design of Congestion Control
Protocols for Multi-Hop Wireless Mesh Networks [PDF] [BIBTEX]
Ihsan Ayyub Qazi and Daniel Mosse
Technical Report TR-09-164, Department
of Computer Science, University of Pittsburgh
Performance Evaluation of Wireless Network Coding
under Practical Settings [PDF] [BIBTEX]
Ihsan Ayyub Qazi and Pratik Gandhi
Technical Report TR-07-150, Department
of Computer Science, University of Pittsburgh
Sizing of Router Buffers in the presence of
Bi-directional Traffic [PDF] [BIBTEX]
Ihsan Ayyub Qazi and Taieb Znati
Technical Report TR-07-149, Department
of Computer Science, University of Pittsburgh