In this paper, we propose a novel block construction using tail sequence to enable the use of space time block codes (STBC) on continuous phase modulation (CPM). Due to the requirement of phase continuity and the associated inherent memory of CPM, the combination of STBC with CPM is not as straightforward as linear modulation schemes. In the proposed method, to ensure the phase continuity, a tail sequence at the end of each block is inserted to make the end phase of every block satisfy certain restrictions. It is a block based method which only needs information within one block. The tail sequences on two transmitters within one block are the same which means that the determination of the tail sequence is only needed on one transmitter. Compared with existing STBC-CPM techniques, the proposed method could achieve higher throughput and reduce computation complexity.
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