author = {C. Bockelmann and D. W\"{u}bben and K.-D. Kammeyer},
  year = {2009},
  month = {May},
  title = {Adaptive BICM-OFDM Systems},
  publisher = {Springer Science+Business Media B.V.},
  pages = {15-24},
  ISBN = {978-90-481-2529-6},
  URL = {http://www.kn-s.dlr.de/mcss2009/},
  address={Herrsching, Germany},
  abstract={The adaptation of power and modulation of a set of parallel channels,
e.g., using Orthogonal Frequency Division Multiplex (OFDM), has been an
important topic in research. Early works focused on uncoded BER
optimization, but nowadays the consideration of channel coding into the
bit and power loading has become a very important aspect. Several
contributions to this field have been made in the last years,
especially considering the influence of bit interleaved coded
modulation (BICM) on such systems. With regard to the channel capacity
of BICM systems, respectively the average mutual information (AMI) of a
code word, several strategies have been devised to either maximize the
transmittable data rate or minimize the bit or frame error rate at a
fixed data rate. In order to compare and analyze these approaches in
context of a variety of codes ranging from convolutional to turbo
codes, we revisit the general problem of the optimization of coded
systems and specify several solutions, analyzing the complexity,
performance and differences of the given approaches. Due to limited
space, only a subset of approaches will be shortly presented in this
abstract. One very interesting extension of the coded bit and power
loading field is the application to multiple-antenna systems. Besides
the approach of diagonalization, which requires perfect channel state
information (CSI), few contributions have been made. Especially,
regarding suboptimal receivers (e.g, Successive Interference
Cancellation, SIC), new results will be included in the full paper.
  booktitle={7th International Workshop on Multi-Carrier Systems & Solutions (MC-SS 2009)}