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Unitary non-group STBC from cyclic algebras Joseph Abarbanel1
 

Summary: Unitary non-group STBC from cyclic algebras
Joseph Abarbanel1
, Amir Averbuch2
Shmuel Rosset1
, Joseph Zlotnick3
1
School of Mathematical Sciences
2
School of Computer Science
3
Department of Electrical Engineering - Systems, Faculty of Engineering,
Tel Aviv Univeristy, Tel Aviv 69978, Israel
Abstract
Space Time Block Codes (STBC) are designed for Multiple Input - Multiple Output
(MIMO) channels. In order to avoid errors, Single Input Single Output (SISO) fading
channels require long coding blocks and interleavers that result in high delays. If one
wishes to increase the data rate it is necessary to take advantage of space diversity.
Early STBC, that where developed by Alamouti [7] for known channels and by Tarokh
[6] for unknown channels, have been proven to increase the performance of channels char-
acterized by Rayleigh fading. Codes that are based on division algebras have by definition

  

Source: Averbuch, Amir - School of Computer Science, Tel Aviv University

 

Collections: Computer Technologies and Information Sciences