Dr. Ihsan Ayyub Qazi @ LUMS


Description: Description: Description: Description: Description: Description: Description: Description: Description: Description: Description: Description: Description: Description: Description: Description: Description: Description: Description: Description: Description: Description: Description: Description: Description: C:\Users\ihsan.qazi\Dropbox\lums\webpage\LUMS SSE\index_files\image002.jpgAssistant Professor

9-G14A

Computer Science Department

SBA School of Science & Engineering (SBASSE)

Lahore University of Management Sciences (LUMS)

CV [PDF]

Email: ihsan.qazi@lums.edu.pk

Phone: +92 42 35608368

 

 


[Publications] [Research] [Talks] [Teaching] [Services] [Students] [Advice]


Recent News

o   Our recent work on Facebook`s Free Basics program has been accepted in ACM SIGCOMM CCR, 2017

o   Received a National ICT R&D (now Ignite) grant on failure resilient datacenters. Thanks Ignite!

o   Our work on Facebook`s Free Basics service will appear in ACM SIGMETRICS 2017 (poster session)

o   Gave a research talk at MIT, Cambridge, CA, USA (March, 2017)

o   Gave a research talk at Harvard University, Cambridge, CA, USA (March, 2017)

o   Gave a research talk at Facebook, Menlo Park, CA on Understanding Internet Access from the Developing World (March 21, 2017)

o   Awarded a HEC NRPU grant. Thanks HEC!

o   Our work on flow scheduling over asymmetric datacenter topologies will appear in NSDI 2017 (poster/demo) session

o   Gave a research talk at University of Southern California (USC), Los Angeles, CA, USA (Dec 12, 2016).

o   Our work on failure resilient load balancing for datacenters has been accepted at IEEE INFOCOM 2017!

o   Invited to serve in the TPC of APNet 2017 and APSys 2017

o   Our work on redundancy aware network stack has been accepted at ACM HotNets 2016!

o   Our paper on service differentiation in high-speed WiFi networks has been accepted at ACM CoNEXT 2016!

o   Gave a research talk at CMU, Pittsburgh, PA, USA (Sept. 8, 2016). Details are here

o   Attended the ACM CoNEXT TPC meeting at CMU, Pittsburgh, USA

o   Our work on understanding mobile phone characteristics in developing regions has been accepted at ACM IMC 2016

o   Attended the Dagstuhl Seminar on network latency control in datacenters in Germany

o   Our work on a low latency transport for datacenters has been accepted in IEEE/ACM Transactions on Networking

o   Invited to serve in the TPC of ACM CoNEXT 2016

o   Gave a research talk at Facebook, Menlo Park, CA, USA (Dec 11, 2015)

o   Gave a research talk at UC Berkeley, Berkeley, CA, USA (Dec 10, 2015)

o   Gave a research talk at Stanford University, Palo Alto, CA, USA (Dec 9, 2015)

o   Gave a research talk at Princeton University, Princeton, NJ, USA (Nov 20, 2015)

o   Attended ACM HotNets in Philadelphia, PA, USA (Nov, 2015)

o   Attended ACM IMC 2015 in Tokyo and IEEE Globecom 2015 in San Diego, CA, USA

o   Our work on Internet censorship has been accepted in ACM HotNets 2015!

o   Attended ACM SIGCOMM 2015 in London and presented our work on eSDN, an architecture for building smart hosts using SDN controllers

o   I was a mentor in the Mentoring Moments at ACM SIGCOMM 2015

o   Invited to serve in the TPC of COMSNET 2016

o   HEC NRPU research grant on designing high performance cloud datacenters. Thanks HEC!

o   Gave talks at Microsoft Research Cambridge (UK) [VIDEO], Rutgers University (USA), Stony Brook University (USA), and University of Pittsburgh (USA)

o   Our work on data center transports appeared in ACM SIGCOMM 2014-(First SIGCOMM paper for Pakistan)

o   Our work on buffer management in datacenters has been accepted in the poster session of ACM SIGCOMM 2014

o   Invited to serve on the TPC of IEEE ICNP 2014

o   BLMon team wins the Lahore Startup Weekend 2014. Congratulations!! -- Press: [PASHA, Facebook]

o   Our paper on wireless loss differentiation has been accepted in the IEEE INFOCOM 2014 Main Conference!

 

Research

My research interests are in computer networks and distributed systems and span datacenters and cloud computing, Internet censorship, mobile/wireless networks, and ICT for developing regions. My research goal is to design and build new architectures and protocols that improve the performance, robustness, and evolvability of networked systems. I lead the Networks and Systems Group (NSG) at LUMS.

 

Teaching

Spring 2012-2017: CS678 Topics in Internet Research (Grad-level)

Spring 2012-2017: CS202 Data Structures

Fall 2012-2016: CS501 Applied Probability (Grad-level)

 

Selected Publications (Complete list)

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

 

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 Ayyub Qazi, David Choffnes, Krishna 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 Qazi, Zartash Uzmi

NSDI 2017, Boston, USA, March, 2017 (poster paper)

 

Load Balancing Over Symmetric Virtual Topologies [PDF] [BIBTEX] (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%)

 

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

 

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)

 

Friends, not Foes - Synthesizing Existing Data Center Transport Strategies in PASE [PDF] [BIBTEX]

Ali Munir, Ghufran Baig, Syed M. Irteza, Ihsan Ayyub Qazi, Fahad R. Dogar, Alex Liu

ACM SIGCOMM 2014, Chicago, USA, August 2014 (acceptance rate = 19%)

 

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%)

 

Minimizing Flow Completion Times in Data Centers [PDF] [BIBTEX] [TALK SLIDES]

Ali Munir, Ihsan Ayyub Qazi, Zartash A. Uzmi, Aisha Mushtaq, Saad N. Ismail, M. Safdar Iqbal, and Basma Khan

IEEE INFOCOM 2013, Turin, Italy, April, 2013 (acceptance rate=17%)

 

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, 2012

 

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, USA, August 2008 (poster paper)

 

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, USA, April 2008 (acceptance rate=20%)