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IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOL. 55, NO. 5, MAY 2007 1839 Equalization Techniques for Distributed Space-Time
 

Summary: IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOL. 55, NO. 5, MAY 2007 1839
Equalization Techniques for Distributed Space-Time
Block Codes With Amplify-and-Forward Relaying
Hakam Mheidat, Member, IEEE, Murat Uysal, Member, IEEE, and Naofal Al-Dhahir, Senior Member, IEEE
Abstract--In this paper, we investigate equalization methods
for cooperative diversity schemes over frequency-selective fading
channels. Specifically, we consider three equalization schemes
proposed originally for conventional space-time block codes
(STBC) [1][3] and extend them to distributed STBC in a coop-
erative transmission scenario with amplify-and-forward relaying.
The distributed STBC equalization schemes are named after
their original counterparts as distributed time-reversal (D-TR)
STBC, distributed single-carrier (D-SC) STBC, and distributed
orthogonal frequency division multiplexed (D-OFDM) STBC. The
underlying orthogonality of distributed STBC results in decoupled
data streams at the receiver side allowing low-complexity imple-
mentations. Without loss of generality, we consider a single-relay
scenario where the source-to-relay , relay-to-destination
, and source-to-destination links experience
possibly different channel delay spreads. Under the assump-

  

Source: Al-Dhahir, Naofal - Department of Electrical Engineering, University of Texas at Dallas

 

Collections: Engineering