«« ( Date ) »» // «« ( Thread ) »» // nastava - 2006

Fw: Sutra i preksutra - Predavanja Dr Gerharda Kramera, Bell Laboratories, Lucent Technologies (ETF Beograd)

by Ana Jankovic
ponedeljak, 25. septembar 2006 - 16:01.


)


Dragi svi,


U organizaciji ETF BAFA, pozivamo vas na dva izuzetno zanimljiva predavanja
Dr Gerharda Kramera, Bell Laboratories, Lucent Technologies, Murray Hill,
NJ, USA, koja ce se odrzati 26 i 27 septembra u ucionici IC-a u Racunskom
centru Elektrotehnickog fakulteta (Bul. Kralja Aleksandra 73), sa pocetkom u
13 casova. Slede abstrakti predavanja (najpre prvi, a zatim drugi dan), kao
i biografija predavaca. Predavanja ce biti na engleskom jeziku.

Vise informacija dole ili na www.etf.bg.ac.yu

27.09.2006 13:00 Information Theory for Interference Channels
Dr Gerhard Kramer, Bell Laboratories, Lucent Technologies, Murray Hill, NJ,
USA

26.09.2006 13:00 Network Coding Rates and Edge-Cut Bounds
Dr Gerhard Kramer, Bell Laboratories, Lucent Technologies, Murray Hill, NJ,
USA

Srdacan pozdrav,
Dusan Matic
sekretar ETF BAFA

------------------------------
BIO:

Gerhard Kramer received the B.Sc. and M.Sc. degrees in electrical
engineering from the University of Manitoba, Winnipeg, MB, Canada, in 1991
and 1992, respectively, and the Dr. sc. techn. (Doktor der Technischen
Wissenschaften) degree from the Swiss Federal Institute of Technology (ETH),
Zurich, Switzerland, in 1998.

From July 1998 to March 2000, he was with Endora Tech AG, Basel,
Switzerland, as a communications engineering consultant. Since May 2000 he
has been with the Communications and Statistical Sciences Department
(formerly the Mathematics of Communications Research Department), Bell
Laboratories, Lucent Technologies, Murray Hill, NJ, USA. His research has
been focused on information theory, communications theory, iterative
decoding, and source coding.


--------------------------------------------------
Information Theory for Interference Channels

Dr Gerhard Kramer, Bell Laboratories, Lucent Technologies, Murray Hill, NJ,
USA


Datum 27.09.2006
Vreme 13:00
Mesto ucionica IC u Racunskom centru ETF

Interference affects many types of communication channels including digital
subscriber lines and wireless links. A basic model for studying coding for
such scenarios is known as the interference channel (IC). Several of the
fundamental results known about ICs are reviewed with special emphasis on
Gaussian channels. We further discuss several recent results including an
"improvement" of astandard achievable rate region.
-------------------

Network Coding Rates and Edge-Cut Bounds

Dr Gerhard Kramer, Bell Laboratories, Lucent Technologies, Murray Hill, NJ,
USA

Datum 26.09.2006
Vreme 13:00
Mesto ucionica IC u Racunskom centru ETF

Network coding has recently become a rapidly evolving area in Information
Theory. We will begin by examining the basic concept behind network coding
and contrast it to the conventional routing approach in existing networks.
We highlight the capacity gain by allowing each node in a network to
re-encode its input information instead of simply storing and forwarding
data. We then discuss some recent progress in network coding. A bound on
network coding rates is presented that generalizes an edge-cut bound on
routing rates. The bound, called a progressive d-separating edge set (or
PdE) bound, involves progressively removing edges from a network graph and
checking whether certain strengthened d-separation conditions are satisfied.
We show that the PdE bound and one of its extensions proves that routing is
rate-optimal for multiple unicast sessions on bidirectional ring networks.
We further show that the PdE bound improves on a standard cut-set bound for
networks with broadcasting, interference, and noise.

This work was done jointly with Serap A. Savari from the University of
Michigan, Ann Arbor.