[UCI-Calit2] Upcoming Event: Cooperation in Wireless Networks: Node Assignment Strategies

Anna Lynn Spitzer aspitzer at rgs.uci.edu
Fri Feb 24 07:58:56 PST 2006


Title:               Cooperation in Wireless Networks: Node Assignment
Strategies

 

Speaker:        Aria Nosratinia, associate professor of electrical
engineering, University of Texas, Dallas

 

Time:              2-3 p.m.

 

Date:               Wednesday, March 1, 2006

 

Location:        Engineering Tower, Room 331, UCI

 

Abstract:         Nosratinia will discuss cooperative wireless networks,
in particular the non-altruistic variety where there are no pure relays
and all nodes that are "on" have data of their own to transmit. In this
context, he will begin by presenting a coded cooperation framework,
where cooperation is achieved in the context of channel coding. He then
will talk about node assignment strategies. In general, not all nodes in
a wireless network wish to be involved in every transmission. For a
multi-node cooperation protocol, one needs strategies of grouping the
nodes. Such strategies are examined under two types of constraints:
distributed control and centralized control. Nosratinia will show that
there exist simple distributed strategies that guarantee full diversity
(in the number of decoding attempts) over the network. Since the
distributed strategies already achieve full diversity, centralized
control does not provide any additional diversity gain, however, based
on various amounts of channel state information being available to the
central controller, significant gains are still possible over and above
distributed control. These gains are characterized under a variety of
conditions.

 

Bio:                 Aria Nosratinia received his Ph.D. in electrical
and computer engineering from the University of Illinois at
Urbana-Champaign.

During the academic year 1995-96, he was with Princeton University,
Princeton, New Jersey. From 1996 to 1999, he was a visiting professor
and faculty fellow at Rice University, Houston, Texas. Since July 1999,
he has been on the faculty of the University of Texas at Dallas, where
he is now associate professor of electrical engineering. Currently he is
spending a sabbatical leave at UCLA.

His interests lie in the broad area of information theory, coding and
signal processing, in particular various problems related to wireless
networks. He received the National Science Foundation career award in
January 2000.  He serves as associate editor for the IEEE Transactions
on Image Processing and IEEE Wireless Communications.

 

 

 

 

 

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