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Diversity embedded space-time code can be used to simultaneously transmit data streams with different diversity levels embedded. However, the decoding complexity of diversity embedded code is high due to the lack quasi-orthogonal (group-decodable) code structure. In this paper, group-decodable diversity embedded space-time code is proposed and constructed systematically for the first time. And scalable diversity level and decoding complexity can be achieved by the construction parameters. Code examples are also constructed and shown to have very low decoding complexity and guaranteed design diversity levels.
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