3-Hop Cooperative Diversity Using Quasi-Orthogonal Space-Time Block Code

Tomoya YAMAOKA; Yoshitaka HARA; Noriyuki FUKUI; Hiroshi KUBO

doi:10.1587/transcom.E93.B.1636

Regular Section

3-Hop Cooperative Diversity Using Quasi-Orthogonal Space-Time Block Code

Tomoya YAMAOKA, Yoshitaka HARA, Noriyuki FUKUI, Hiroshi KUBO

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Keywords: cooperative diversity, multi-hop, quasi-orthogonal space-time block code

JOURNAL RESTRICTED ACCESS

2010 Volume E93.B Issue 6 Pages 1636-1640

DOI https://doi.org/10.1587/transcom.E93.B.1636

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Abstract

We propose 3-hop cooperative diversity using QOSTBC (Quasi-Orthogonal Space-Time Block Code) [1], which offers 3-hop cooperative diversity without signal separation in relay nodes. The key of our proposed scheme is encoding signal sequence in different signal unit according to relay stage. This letter explains details of the proposed scheme and shows that it offers interference reduction among streams and space diversity gain by result of simulations.

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