@ARTICLE {28015,
author={S. Ali Ali and D. Castanheira and A.  Alsohaily and E.  Sousa and A.  Silva and A. Gameiro},
doi={10.1109/ACCESS.2018.2881338},
journal={IEEE Access},
title={Joint Space-Frequency Block Codes and Signal Alignment for Heterogeneous Networks},
year={2018},
month={November},
volume={5},
number={NA},
pages={71099-71109},
ISSN={2169-3536}
}