Knowledge Center

Broadband Access Technologies

Each access technology has its strengths and weaknesses. We here give an overview of the main broadband access technologies available today or anticipated to be available soon.

ADSL/VDSL Vectored VDSL2 (Vectoring) G.fast G.now Hybrid Fiber/Coax (HFC) Fiber-To-The-Home (FTTH) Terabit DSL

Video
White Papers
Research
Industry Articles
Gigabits to Billions

Dr. John Cioffi talks about how to deliver affordable high-speed broadband to billions of subscribers.


Software-based Management for High-Speed, Profitable Broadband

Dr. John Cioffi discusses the latest broadband technologies for delivering high-speed broadband while at CommunicAsia 2014.


DSL Broadband: Outlook for 2014

Dr. John Cioffi, CEO of ASSIA, discusses the future of DSL broadband technologies and high-speed Internet performance.

 


Ubiquitous Cost-Effective Gigabit Per Second Broadband Access: It’s Coming, And Not The Way You Think!

ASSIA CEO, Dr. John Cioffi, presents on the future of high-speed broadband at Viterbi Keynote Lecture, a USC Special Event.


Father of DSL, Dr. John Cioffi, in Discussion with Malcolm Turnbull

ASSIA CEO, Dr. John Cioffi, discusses DSL broadband technologies with Australia’s Communications Minister.


Delivering Ultra-Fast Broadband

ASSIA, October 2014
G. Ginis, K.J. Kerpez


Software Defined Access Networking: Taking NFV and SDN to the Edge

ASSIA, October 2014
G. Ginis, S. Galli, M. Goldburg


Smart Vectoring

ASSIA, September 2013
S. Galli, G. Ginis, M.Goldburg


Methods for Supporting Vectoring when Multiple Service Providers Share the Cabinet Area

FASTWEB/ASSIA Vectoring White Paper, April 2012
A. Colmegna, S. Galli, M. Goldburg


Statistical Modeling of PLC-to-DSL Interference

IEEE Int. Symp. on Power Line Commun. (ISPLC), Austin, TX – March 2015 (Best Paper Award Winner)

S. Galli, K.J. Kerpez, H. Mariotte, F. Moulin


The Impact of PLC-to-DSL Interference on VDSL2, Vectored VDSL2 and G.fast

IEEE Int. Symp. on Power Line Commun. (ISPLC), Austin, TX – March 2015

K.J. Kerpez, S. Galli, H. Mariotte, F. Moulin

 

 


Software-Defined Access Networks (SDAN)

IEEE Communications Magazine, September 2014
K. Kerpez, J. Cioffi, G. Ginis, M. Goldburg, S. Galli, P. Silverman


Dynamic Upstream Power Back-Off for Mixtures of Vectored and Non-vectored VDSL

IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Florence, Italy – May 2014
M.-Y. Chen, G. Ginis, M. Mohseni


Distributed Crosstalk Management for Upstream VDSL Using Dynamic Power Control

IEEE Transactions on Communications, April 2012

M.-Y. Chen, W. Rhee, M. Mohseni, J.M. Cioffi


Compatibility of Vectored and Non-Vectored VDSL2

IEEE Conference on Information Sciences and Systems (CISS), Princeton, NJ – March 2012
K. Kerpez, J. Cioffi, S. Galli, G. Ginis, M. Goldburg, M. Mohseni


Lighting up Copper

IEEE Communications Magazine, May 2011

J.M. Cioffi

 


The ITU-T’s new G.vector standard proliferates 100 Mb/s DSL

IEEE Communications Magazine, October 2010

V. Oksman, H. Schenk, A. Clausen, J.ioffi, M. Mohseni, G. Ginis, C. Nuzman, J. Maes, M. Peeters, K. Fisher, P.-E. Eriksson


G.hn: The New ITU Home Networking Standard

IEEE Communications Magazine, October 2009

V. Oksman, S. Galli


Recent Developments in the Standardization of Power Line Communications within the IEEE

IEEE Communications Magazine, July 2008

S. Galli, O. Logvinov


Margin Optimization in Digital Subscriber Lines Employing Level-1 Dynamic Spectrum Management

IEEE International Conference on Communications (ICC), Beijing, China – May 2008

S. Jagannathan, C. S. Hwang, J.M. Cioffi


Margin Optimization in Digital Subscriber Lines Employing Level-2 Dynamic Spectrum Management

IEEE International Conference on Communications (ICC), Beijing, China –  May 2008

S. Jagannathan, C. S. Hwang, J.M. Cioffi


Integrated DSL Test, Analysis, and Operations

IEEE Transactions on Instrumentation and Measurement, April 2008

K.J. Kerpez, R. Kinney


Greener Copper with Dynamic Spectrum Management

IEEE Global Telecommunications Conference  (Globecom), New Orleans, LA – December 2008

J.M. Cioffi, H. Zou, A. Chowdhery, W. Lee, S. Jagannathan


Gigabit DSL

IEEE Transactions on Communications, September 2007

B. Lee, J.M. Cioffi, S. Jagannathan, M. Mohseni


CuPON: The Copper Alternative to PON 100 Gb/s DSL Networks

IEEE Communications Magazine, June 2007

J.M. Cioffi, S. Jagannathan, M. Mohseni, G. Ginis


IPTV Service Assurance

IEEE Communications Magazine, September 2006

K.J. Kerpez, D. Waring, G. Lapiotis, J.B. Lyles, R. Vaidyanathan


Single-Ended Loop Make-Up Identification Part II: Improved Measurements and Performance Results

IEEE Transactions on Instrumentation and Measurements, April 2006

K.J. Kerpez, S. Galli


Single-Ended Loop Make-Up Identification Part I: A Method of Analyzing TDR Measurements

IEEE Transactions on Instrumentation and Measurements, April 2006

S. Galli, K.J. Kerpez


Advanced DSL management

IEEE Communications Magazine, September 2003

K.J. Kerpez, D. Waring, S. Galli, J. Dixon, P. Madon


Distributed Multiuser Power Control for Digital Subscriber Lines

IEEE Journal on Selected Areas in Communications, June 2002

W. Yu, G. Ginis, J.M. Cioffi

 


Loop Make-Up Identification via Single Ended Testing: Beyond Mere Loop Qualification

IEEE Journal on Selected Areas in Communications, June 2002

S. Galli, D. Waring


Vectored Transmission for Digital Subscriber Line Systems

IEEE Journal on Selected Areas in Communications, June 2002

G. Ginis, J.M. Cioffi


A Frequency-Domain Approach to Crosstalk Identification in xDSL Systems

IEEE Journal on Selected Areas in Communications, August 2001

S. Galli, C. Valenti, K. Kerpez

 


For more information about John Cioffi’s research on DSL, Dynamic Spectrum Management (DSM), and other advanced communication topics, please check: http://www.stanford.edu/group/cioffi/

Making Vectoring Smarter

OSP Magazine

April 2014

 


The effects of vectored DSL on network operations ( PDF )

Journal of Telecommunications Management
July 2010


Vectored DSL to the Rescue

OSP Magazine
April 2010


The ADSL Revolution, 10 Years In (French)

Les Echos, March 13, 2007
ADSL saw its first commercial European deployments in the Spring of 1997. Today, ADSL has become the primary means of broadband access in France, with more than 12 million subscribers…Dynamic Spectrum Management…has already begun a second youth for ADSL, offering increasing data rates, improved service quality, and expanded footprint… Page 1 >  Page 2 >