High-rate full-diversity multiuser Space-frequency codes

In this paper, the authors have proposed a multiuser Space frequency (SF) code with high symbol rate and full-diversity. This SF code is constructed from a threaded algebraic layering concept. It combines the space-frequency layering concept with algebraic component codes where each component code is assigned to a “thread” and interleaved over space and frequency. It is proved that the proposed multiuser SF codes for multiple input multiple output (MIMO) frequency selective fading multiple access channel (MAC) achieve high symbol rate (rate>;1) and full-diversity. The proposed SF code ensures the high data rate as it does not require zero-padding.