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  EURASIP Journal on Applied Signal Processing

  Special Issue on

  Reliable Communications over Rapidly Time-Varying Channels

  Call for Papers

Wireless communications have become an important part of everyday life.
Think for instance about mobile telephone applications, wireless local
area networks (WLANs), wireless ad hoc networks, and so far the. Most
of these systems have been designed assuming that the channel can be
regarded as constant over a block of data. Nonetheless, market studies
predict a rapid growth of high data rate mobile applications such as
watching TV on mobile phones. In such mobile applications, Doppler
shifts introduce temporal channel variations, which become more
pronounced as the carrier frequency increases, and basically violate
the time-invariance assumption. As a result, many existing wireless
systems can only provide low data rates at high mobility (e.g., UMTS)
or even break down completely at high speeds (e.g., DVB-T and IEEE802.16).

This special issue therefore focuses on communications over rapidly
time-varying channels, which can not be viewed as time invariant over
a frame. Different time-varying channel models have recently been proposed,
such as the basis expansion model and the Gauss-Markov model. Results are
welcomed on how to estimate the channel parameters for such models, and,
related to that, what is the optimal training strategy. In addition,
low-complexity equalization schemes for time-varying channels should
receive some attention, as well as joint precoder-decoder designs to boost
the performance. Also, the behavior of existing multiple-access schemes
in rapidly time-varying channels, such as the well-known code-division
multiple-access (CDMA) scheme, as well as the development of novel
multiple-access schemes for rapidly time-varying channels are important
research topics that require further investigation. Finally, multiple-input
multiple-output (MIMO) communications and space-time coding (STC) over
time-varying channels are very new areas that urgently need to be covered.

This special issue is intended to gather new and insightful results on
wireless communications over rapidly time-varying channels, a challenging
research topic that gains increasing attention due to its importance in
future wireless applications. The results might for instance be useful
in the frame of the mobile extensions of DVB-T and
IEEE802.16, e.g., DVB-M and IEEE802.20.

Topics of interest include (but are not limited to):

    o Channel modeling, estimation, and equalization
    o Optimal training
    o Joint precoder/decoder design
    o Multiple-access schemes
    o MIMO communications
    o Space-time coding
    o Information theoretic results

Authors should follow the EURASIP JASP manuscript format
described at the journal site http://www.hindawi.info/asp/
Prospective authors should submit an electronic copy of their
complete manuscript through the EURASIP JASP's manuscript
tracking system at journal's web site, according
to the following timetable.

  Manuscript Due            June 1, 2005
  Acceptance Notification   October 1, 2005
  Final Manuscript Due      January 1, 2005
  Publication Date          2nd Quarter, 2006

GUEST EDITORS:

Geert Leus, Delft University of Technology, 2611 WE Delft,
The Netherlands; leus@cas.et.tudelft.nl

Georgios Giannakis, University of Minnesota, Minneapolis,
MN 55455, USA; georgios@ece.umn.edu

Jean-Paul Linnartz, Philips Research Laboratories,
5656AA Eindhoven, The Netherlands; j.p.linnartz@philips.com

Xiaoli Ma, Auburn University, Auburn, AL 36849,
USA; xiaoli@eng.auburn.edu

Ananthram Swami, Army Research Laboratory, Adelphi, MD 20783,
USA; a.swami@ieee.org

Cihan Tepedelenlioglu, Arizona State University, Tempe,
AZ 85287-5706, USA; cihan@asu.edu

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