seminar

[Mohammed Nafie]

Dear All, 

Prof. Werner Henkel of Jacobs University will give a seminar on Sunday 13th of June 2010 in C3 lab in B71 starting at 2.00 pm.

Bio is in http://trsys.faculty.jacobs-university.de/english/perso_E_henkel.htm

The abstract follows:

Aspects of multi-carrier modulation

Multi-carrier modulation has become the transmission method of choice
for wireline and wireless transmission.
Important tasks are time-domain equalization, bit allocation, and
peak-to-average ratio reduction.
The equalization issue we will only touch shortly, but we will discuss
bit allocation algorithms for unequal error protection in OFDM and MIMO
applications; PAR reduction will be handled following tone reservation
and trellis-based partial transmit sequences.
Less known is the fact that OFDM with guard bands and/or cyclic prefix
represents an analog Reed-Solomon code. Thus, inherently, time-frequency
coding is realized. A step further shows that also a MIMO system
realized with singular-value decomposition is indeed a code with similar
properties when weak eigenvalues are not used.
The talk will finish with a short excursion to impulse-noise suppression
using the common mode in DSL.