Serially concatenated space-time code for high data rate wireless communication systems

This paper suggests and analyzes the serially concatenated space-time code (SCSTC) with the possibility of a efficient high-speed transmission in a band limited channel. The suggested code has a structure that uses the interleaver to connect the space-time code as a inner code and the convolutional code as an outer code serially. This code keeps the advantage of high-speed transmission and also has a high BER performance. The performance of the suggested system is compared with the conventional bandwidth efficient trellis coded modulation, such as a serially concatenated trellis coded modulation (SCTCM) and a turbo-trellis coded modulation (turbo-TCM). The results show that the suggested system has a 2.8 dB and a 3 dB better BER performance than SCTCM and turbo-TCM respectively in the case of a 2b/s/Hz transmission rate in a fading channel