Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
IEEE COMMUNICATIONS LETTERS, VOL. 10, NO. 3, MARCH 2006 1 Novel Full-Diversity High-Rate STBC for
 

Summary: IEEE COMMUNICATIONS LETTERS, VOL. 10, NO. 3, MARCH 2006 1
Novel Full-Diversity High-Rate STBC for
2 and 4 Transmit Antennas
Sushanta Das, Naofal Al-Dhahir, and Robert Calderbank
Abstract-- We design a new rate-5
4
full-diversity orthogonal
space-time block code (STBC) for QPSK and 2 transmit antennas
(TX) by enlarging the signalling set from the set of quaternions
used in the Alamouti [1] code. Selective power scaling of informa-
tion symbols is used to guarantee full-diversity while maximizing
the coding gain (CG) and minimizing the transmitted signal
peak-to-minimum power ratio (PMPR). The optimum power
scaling factor is derived analytically and shown to outperform
schemes based only on constellation rotation while still enjoying
a low-complexity maximum likelihood (ML) decoding algorithm.
Finally, we extend our designs to the case of 4 TX by enlarging
the set of Quasi-Orthogonal STBC with power scaling. Extensions
to general M-PSK constellations are straightforward.
Index Terms-- STBC, quaternions, coding gain, peak-to-

  

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

 

Collections: Engineering