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Workshop
Program (Monday, December 6)
8:50 AM - 9:00 AM:
Welcome/Opening address
9:00 AM - 9:30 AM: Keynote
talk by Prof. Jeffrey G.
Andrews, The University of Texas, Austin
Talk Title: Understanding
Femtocell-Overlaid Cellular Networks
Chair: Tony Q. S. Quek
(Institute for Infocomm
Research, Singapore)
Abstract: Femtocell networks are unique
in offering order of magnitude capacity gains in the foreseeable future --
gains which are urgently needed given the relentless increase in data and
video service demands. They also pose unique technical challenges,
since they will be deployed in an ad hoc manner in licensed spectrum that
is already heavily used, and thus rapidly alter the centrally planned
cellular tower paradigm that has guided cellular networks for the past 3
decades. We overview the key traits of two-tier femtocell networks, and highlight the new
challenges to researchers as far as modeling and analyzing the downlink and
uplink of such networks. A key tool is the use of spatial random processes,
for which we provide a brief overview of useful results in the context of femtocell
overlaid cellular networks.
Biography: Jeffrey
Andrews (S’98, M’02, SM’06) received the B.S. in
Engineering with High Distinction from Harvey
Mudd College in 1995, and the M.S. and Ph.D. in
Electrical Engineering from Stanford
University in 1999
and 2002, respectively. He is an Associate Professor in the
Department of Electrical and Computer Engineering at the University of Texas
at Austin, and the Director of the Wireless Networking and Communications
Group (WNCG), a research center comprising 17 faculty and 10 industrial
affiliates. He developed Code Division Multiple Access systems at Qualcomm
from 1995-97, and has consulted for entities including the WiMAX Forum, Microsoft, Apple, Clearwire,
Palm, ADC, and NASA.
Dr. Andrews is co-author of two books, Fundamentals of WiMAX (Prentice-Hall, 2007) and Fundamentals of
LTE (Prentice-Hall, 2010), and holds the Earl and Margaret Brasfield Endowed Fellowship in Engineering at UT
Austin, where he received the ECE department’s first annual High Gain award
for excellence in research. He is a Senior Member of the IEEE, and served
as an associate editor for the IEEE Transactions on Wireless
Communications from 2004-08. Dr. Andrews received the National Science
Foundation CAREER award in 2007 and is the Principal Investigator of a 9
university team of 12 faculty in DARPA's Information Theory for Mobile Ad Hoc Networks
program. He has been co-author of four best paper award recipients,
two at IEEE Globecom (2006 and 2009) one at Asilomar (2008), and the 2010 IEEE Communications
Society Best Tutorial Paper Award. His research interests are in
communication theory, information theory, and stochastic geometry applied
to wireless ad hoc, femtocell and cellular
networks.
9:30 AM - 10:40 AM: System
Analysis of Femtocell Networks (Session #1)
Chair: Tony Q. S. Quek
(Institute for Infocomm
Research, Singapore)
CDMA Uplink Capacity in
both Open and Closed Access Two-tier Femtocell
Networks
Ping Xia (University of Texas
at Austin, USA);
Vikram Chandrasekhar (Texas Instruments, USA); Jeffrey Andrews (The University of Texas
at Austin, USA)
Capacity Comparison for
CSG and OSG OFDMA Femtocells
Ang-Hsun
Tsai (National Chiao Tung University, Taiwan);
Jane-Hwa Huang (National Chi Nan University,
Taiwan); Li-Chun Wang (National Chiao Tung
University, Taiwan); Ruey-Bing Hwang (National Chiao Tung University, Taiwan)
On Interference Analysis
of Self-organized Femtocells in Indoor Deployment
Carlos H. M. de Lima
(University of Oulu, Finland); Mehdi Bennis (Centre of Wireless
Communications, University of Oulu, Finland); Kaveh
Ghaboosi (Univeristy of
Oulu, Finland); Matti Latva-aho
(UoOulu, Finland)
Outage Analysis for WCDMA Femtocell with Uplink Attenuation
He Wang (Australian
National University, Australia);
Ming Zhao (Australian Communication and Media Authority,
Australia); Mark C. Reed
(National ICT Australia,
ANU, Australia)
10:40 AM - 11:00 AM: Coffee Break #1
11:00 AM - 11:30 AM: Keynote talk by Prof.
Giuseppe Caire, University of Southern
California, USA
Talk Title: Cognitive Femtocells for 4G Cellular Networks
Chair: Ismail Guvenc
(DOCOMO USA Labs, USA)
Abstract: We
consider the case of smart ``cognitive'' femtocells,
that can decode the base station control channel and make decision on their
transmission opportunities based on the scheduling and resource allocation
of the overlying macro-cell. The operation of such femtocells
is somehow reminiscent of ``Type II'' relays, as specified in the IEEE
802.16j standard. Under certain system assumptions, we consider the
throughput tradeoff region of the macro-cell versus aggregate femtocell throughputs. We evaluate the effect of
interference cancellation at the femtocells,
interference alignment of the macro-cell signals such that macro-femto interference is mitigated in the macro downlink
band, and the use of multiple antennas femto-base
stations. We show that a careful combination of these techniques achieves a
remarkably large aggregate femtocell throughput,
at very low cost in terms of macro-cell throughput. Consequently, we advocate
a smart design of femtocells, different from the
simple ``mini-base station'' approach currently considered, that takes full
advantage of the very dense spatial reuse offered by femtocell
deployment.
Biography: Giuseppe Caire was born in Torino, Italy, in 1965. He received the B.Sc. in
Electrical Engineering from Politecnico di Torino (Italy),
in 1990, the M.Sc. in Electrical Engineering from Princeton
University in 1992 and the Ph.D.
from Politecnico di
Torino in 1994. He was a recipient of the AEI G.Someda
Scholarship in 1991, he was with the European
Space Agency (ESTEC, Noordwijk, The Netherlands)
in 1994-1995 as research staff and, as research fellow, Princeton University in 1997 and Sydney University
in summer 2000. Giuseppe Caire has been assistant
professor in Telecommunications at the Politecnico
di Torino in 1995-1997, associate professor at
the University of Parma, Italy, in 1997-1998 and professor at the Eurecom Institute, Sophia-Antipolis,
France, in 1998-2005. He
joined the EE Department of the Viterbi School of
Engineering, USC, in August 2005. He served as Associate Editor for the
IEEE Transactions on Communications in 1998-2001 and as Associate Editor
for the IEEE Transactions on Information Theory in 2001-2003. He received
the Jack Neubauer Best System Paper Award from
the IEEE Vehicular Technology Society in 2003, and the Joint Information
Theory/Communications Society Best Paper Award in 2004. He was elected in
the Board of Governors of the IEEE Information Theory Society in 2004 and was
nominated IEEE Fellow in 2005. His current interests are in the field of
communications theory, information theory and coding theory with particular
focus on wireless applications.
11:30 AM - 12:40 PM: System
Design of Femtocell Networks (Session #2)
Chair: Ismail Guvenc
(DOCOMO USA Labs, USA)
Imbalance Issues in
Heterogeneous DO Networks
Kambiz
Azarian (Qualcomm Inc., USA); Christopher Lott (Qualcomm, Inc.,
USA); Donna Ghosh (Qualcomm Corp R&D, USA);
Rashid Attar (QUALCOMM Inc., USA)
Self-Organization for LTE Enterprise Femtocells
Guillaume de la Roche
(University of Bedfordshire, United Kingdom); Ákos
Ladányi (Budapest University of Technology and
Economics, Hungary); David López-Pérez (King's
College London, United Kingdom); Chia-Chin Chong
(DOCOMO USA Labs, USA); Jie Zhang (University of Bedfordshire, United
Kingdom)
Hybrid User Access Control
in HSDPA Femtocells
Yang-Yang Li (University of Toronto, Canada);
Leon (Chung-Dai) Yen (University of Toronto, Canada);
Elvino Silveira Sousa (University of Toronto, Canada)
A Non-Cooperative Method
for Path Loss Estimation in Femtocell Networks
Qinliang
Su (Zhejiang University, P.R. China); Aiping
Huang (Zhejiang University, P.R. China); Zhaoyang
Zhang (Zhejiang University, P.R. China); Kai Xu (China Broadband
Communication Research Lab, Applied Research Center, Motorola, P.R. China);
Jin Yang (China Broadband Communication Research Lab, Applied Research
Center, Motorola, P.R. China)
12:40 PM - 1:50 PM: Lunch
Break
1:50 PM - 2:20 PM: Keynote talk by Prof. Merouane Debbah, Supelec, France
Talk Title: Flexible
Small Cell Green Networks: Breaking the Spectral Efficiency Barrier
Chair: Guillaume de la
Roche (University of Bedfordshire,
United Kingdom)
Abstract: The
general term "small cell networks" covers a range of radio
network design concepts which are all based on the idea of deploying base
stations much smaller than typical macro cell devices in order to offer
public or open access to mobile terminals. The main benefits are: - to
allow offloading the traffic from the macro cell and provide dedicated
capacity to urban hotspots – to allow for unprecedented mobile system
capacities (in terms of Gbit/s/km2) - to have the potential to reduce the
ecological footprint of cellular networks by bring mobiles and base
stations closer together - To make cell site rental and dedicated backhaul
provisioning superfluous since they rely on existing backhaul
infrastructure - Finally, self-organization and optimization of the devices
allows for plug and play deployment, requires no network planning and
reduces maintenance costs. We will discuss the challenges ahead and some
research directions that develop the theoretical and practical foundations
of these networks.
Biography: Mérouane Debbah was born in Madrid, Spain.
He entered the Ecole Normale
Supérieure de Cachan (France)
in 1996 where he received his M.Sc and Ph.D.
degrees respectively in 1999 and 2002. From 1999 to 2002, he worked for
Motorola Labs on Wireless Local Area Networks and prospective fourth
generation systems. From 2002 until 2003, he was appointed Senior
Researcher at the Vienna Research Center for Telecommunications (FTW)
(Vienna, Austria) working on MIMO wireless channel modeling issues. From
2003 until 2007, he joined the Mobile Communications de-partment
of the Institut Eurecom
(Sophia Antipolis, France) as an Assistant
Professor. He is presently a Professor at Supelec
(Gif-sur-Yvette,
France),
holder of the Alcatel-Lucent Chair on Flexible Radio. His research
interests are in information theory, signal process-ing
and wireless communications. Mérouane Debbah is the recipient of the "Mario Boella" prize award in 2005, the 2007 General
Symposium IEEE GLOBECOM best paper award, the Wi-Opt
2009 best paper award, the 2010 Newcom++ best
paper award as well as the Valuetools
2007,Valuetools 2008 and CrownCom2009 best student paper awards. He is a
WWRF fellow.
2:20 PM - 3:30 PM: Interference Management for Femtocell
Networks (Session #3)
Chair: Guillaume de la
Roche (University of Bedfordshire,
United Kingdom)
System Level Performance
Evaluation of Inter-cell Interference Coordination Schemes for
Heterogeneous Networks in LTE-A System
Young-Jun Hong (Samsung
Electronics Co., Ltd., Korea); Namyoon Lee
(Samsung Advanced Institute of Technology, Korea); Bruno Clerckx (Samsung Advanced Institute of Technology,
Korea)
Femto-Macro
Cellular Interference Control with Subband
Scheduling and Interference Cancelation
Sundeep
Rangan (Polytechnic
University of New York University, USA)
Power Control Based
Interference Mitigation in Multi-tier Network
Shu-ping
Yeh (Intel Corporation, USA); Shilpa Talwar
(Intel, USA); Nageen Himayat
(Intel Corporation, USA); Kerstin Johnsson
(Intel, USA)
A Q-learning Based
Approach to Interference Avoidance in Self-Organized Femtocell
Networks
Mehdi Bennis (Centre of
Wireless Communications, University of Oulu,
Finland); Dusit Niyato (Nanyang Technological University, Singapore)
3:30 PM - 3:50 PM: Coffee
Break #2
3:50 PM - 4:45 PM: Advanced Techniques for Femtocell
Networks (Session #4)
Chair: Robert
Heath (The University of Texas at Austin, USA)
Interference Cancelation
Schemes for Uplink Transmission in Femtocells
Chan Dai Truyen
Thai (Aalborg University, Denmark); Petar Popovski (Aalborg
University, Denmark)
LTE Femtocell
System Through Amplify-and-Forward Over Cable Links
Jonathan Gambini (Politecnico di Milano,
Italy); Umberto Spagnolini (Politecnico di Milano, Italy)
Interference Mitigation in Cognitive Femtocells
Gustavo W. O. Costa (Aalborg University,
Denmark); Andrea F. Cattoni (Aalborg University, Denmark); Víctor Roig
(Universitat Politecnica de Catalunya, Spain); Preben Mogensen (Nokia
Siemens Networks, Aalborg, Denmark)
4:45 PM - 5:30 PM: Panel Discussion: The Future of Heterogeneous
Networks
Chair: Anthony Soong (Huawei Technologies, USA)
Panelists:
Jeffrey G. Andrews, The
University of Texas-Austin, USA
Alex Damnjanovic,
Qualcomm, USA
Nivi
Thadasina, Samsung,
USA
Hany
Fahmy, AT&T, USA
Takeshi Okamoto, NTT DOCOMO, Japan
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