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CONCATENATION OF TRELLIS- CODED MODULATION AND SPACE-TIME CODE FOR WIRELESS COMMUNICATIONS | ||
| AL-TAQANI | ||
| Article 1, Volume 24, Issue 3, 2011, Pages 10-19 | ||
| Authors | ||
| Mahmood Farhan Mos; Imad Hazim Mohomad; Salam Ibrahim Kadim | ||
| Abstract | ||
| In wireless communication system it can achieve increases in the reliability of data reception without bandwidth expansion by using antenna diversity. Space-Time Block Codes (STBC) can achieve the full diversity gain with very simple decoding but cannot get perfect performance for coding gain. Trellis-Coded Modulation (TCM) is a kind of channel coding with improving the coding gain. Therefore, concatenation of STBC and TCM is a combined channel coding to achieve both diversity gain and coding gain advantages. In this paper the performance of TCM is evaluated alone and so for STBC with two transmit and one received antennas, as well as concatenated STBC with TCM over frequency flat fading channel. The simulation results illustrates that concatenation system is robust for various level of Signal to Noise Ratio (SNR) in multipath fading channel. Simulink implementation has been done for such system | ||
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