Title :
A New Class of Space-Time Codes via Orthogonal Designs, Circulant Basis, and Kronecker Product
Author :
Dào, Dung Ngoc ; Tellambura, Chintha
Author_Institution :
Dept. of Electr. & Comput. Eng., Alberta Univ., Edmonton, Alta.
Abstract :
We present a unified algebraic structure of space-time block codes (STBC) with orthogonality called orthogonality-embedded space-time (OEST) codes. Previously known codes, including orthogonal, quasi-orthogonal, semi-orthogonal, and non-orthogonal rate-one circulant space-time codes, are special cases of OEST codes. To construct OEST codes, the generalized complex or real orthogonal designs are employed with two main differences: (1) each data symbol is replaced by a circulant matrix; (2) the scalar product is replaced by the Kronecker product. We show that each group of transmitted symbols embedded in the circulant matrices can be separately detected without any interference from other groups. Signal rotations are used to obtain full diversity and optimal coding gain
Keywords :
block codes; matrix algebra; space-time codes; Kronecker product; circulant basis; circulant matrix; data symbol; nonorthogonal rate-one circulant space-time code; optimal coding gain; orthogonal designs; orthogonality-embedded space-time codes; quasi-orthogonal space-time code; scalar product; semi-orthogonal space-time code; space-time block codes; unified algebraic structure; Block codes; Data communication; Decoding; Fading; Feedback; Interference; Space time codes; Telephony; Transmitters; Transmitting antennas;
Conference_Titel :
Information Theory, 2006 IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
1-4244-0505-X
Electronic_ISBN :
1-4244-0504-1
DOI :
10.1109/ISIT.2006.261843
