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The distributed space-time code based on algebra theory in cooperative systems discussed in this paper is linear, but it doesn't satisfy the design criterion of orthogonal and quasi orthogonal space-time code. First the collaborative channel model is established and then we design the distributed space-time block codes which base in the model of two transmitting antennas and two receiving antennas...
In this paper we introduce a new kind of space time block code based on quaternion quasi-orthogonal design. The new code can transmitted through dual-polarized antennas and received through dual-polarized antennas. Compared with quasi-orthogonal space-time block codes, the new code can reduce bit error rate.
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