Full-Rate STBCs from Coordinate Interleaved Orthogonal Designs in Time-Selective Fading Channels

Hoojin LEE  Jeffrey G. ANDREWS  Edward J. POWERS  

Publication
IEICE TRANSACTIONS on Communications   Vol.E91-B   No.4   pp.1185-1189
Publication Date: 2008/04/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e91-b.4.1185
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
wireless communications,  space-time block codes (STBCs),  coordinate interleaved orthogonal designs (CIODs),  channel estimation errors,  time-selective fading channel,  

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Summary: 
Space-time block codes (STBCs) from coordinate interleaved orthogonal designs (CIODs) have attracted a great deal of attention due to their full-diversity and linear maximum likelihood (ML) decodability. In this letter, we propose a simple detection technique, particularly for full-rate STBCs from CIODs to overcome the performance degradation caused by time-selective fading channels. Furthermore, we evaluate the effects of time-selective fading channels and imperfect channel estimation on STBCs from CIODs by using a newly-introduced index, the results of which demonstrate that full-rate STBCs from CIODs are more robust against time-selective fading channels than conventional full-rate STBCs.