Construction of new delay-tolerant Space-Time Codes

Author

Sarkiss, Mireille ; Othman, Ghaya Rekaya-Ben ; Damen, Mohamed Oussama ; Belfiore, Jean-Claude

Author_Institution

Telecom ParisTech (ENST), Paris, France

fYear

2010

Firstpage

379

Lastpage

384

Abstract

Perfect Space-Time Codes (STC) are full-rate, full-diversity codes originally proposed for Multiple Input Multiple Output (MIMO) systems. Based on Cyclic Division Algebras (CDA), they have non-vanishing determinants and hence achieve the Diversity-Multiplexing Tradeoff (DMT). In addition, these codes have led to optimal distributed Space-Time Codes when applied in cooperative networks under the assumption of perfect synchronization between relays. However, they lose their diversity when delays are introduced and thus are not delay-tolerant. In this paper, using the cyclic division algebras of perfect codes, we construct new codes that maintain the same properties as perfect codes in the synchronous case. Moreover, these codes preserve their full-diversity in asynchronous transmission.

Keywords

MIMO communication; cooperative communication; diversity reception; multiplexing; space-time codes; synchronisation; MIMO systems; asynchronous transmission; cooperative networks; cyclic division algebras; delay tolerant space time codes; diversity codes; diversity multiplexing tradeoff; multiple input multiple output systems; nonvanishing determinants; optimal distributed space time codes; synchronization; Algebra; Delay; Generators; Lattices; MIMO; Relays; Space time codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal Indoor and Mobile Radio Communications (PIMRC), 2010 IEEE 21st International Symposium on

Conference_Location

Instanbul

Print_ISBN

978-1-4244-8017-3

Type

conf

DOI

10.1109/PIMRC.2010.5671869

Filename

5671869