Publications

 

Journals

Inside the Walled Garden: Deconstructing Facebook's Free Basics Program [PDF] [BIBTEX] (NEW*)

Rijurekha Sen, Sohaib Ahmad, Amreesh Phokeer, Zaid Farooq, Ihsan Ayyub Qazi, David Choffnes, Krishna Gummadi

ACM SIGCOMM CCR, October 2017

 

PASE: Synthesizing Existing Transport Strategies for Datacenter Networks [PDF] [BIBTEX] (NEW*)

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 [PDF] [BIBTEX]
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

An Empirical Analysis of Facebook`s Free Basics Program [PDF] [BIBTEX] (NEW*)

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] (NEW*)

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] (NEW*)

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] (NEW*)

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] (NEW*)

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] (NEW*)
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] (NEW*)
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