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Serially concatenated space time convolutional codes and continuous phase modulation
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DOI：10.1109/TCOMM.2008.060428.png)
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Abstract
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This paper addresses space time convolutional code design using continuous phase modulation (CPM). The possibility of constructing full diversity space time codes is investigated. A linear modulation approximation to CPM is done. Using the Gram-Schmidt orthogonalization transform the CPM signal is generated as a vector with finite energy in a different Euclidean space. A serially concatenated CPM construction is considered in searching channel codes which are able to exploit maximum diversity. Design criteria based on the encoding scheme are derived for an arbitrary number of transmit antennas. The investigations are done for a quasi-static Rayleigh fading channel.
Keywords:
concatenated codes
space time codes
continuous phase modulation
iterative decoding
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