Space-time block coding-from a physical perspective

Space-time block coding (STBC) is an effective transmit diversity scheme. It was presented previously by in terms of coding and decoding by Alamouti (see IEEE J. Select. Areas Commun., vol.16, no.8, p.1451-58, 1998) and by Tarokh, Jafarkhani and Calderbank (see IEEE Trans. Inform. Theory, 1999). Here, STBC is examined from a different perspective; namely the radiation patterns resulting from simultaneous transmission from multiple transmit antennas.