Bandwidth and Efficient Encoding Scheme Combining TCM-UGM to STBC

In this paper, a bandwidth efficient encoding scheme is proposed. It combines the modified version of trellis coded-modulation (called Trellis Coded-Modulation with Ungerboeck-Gray Mapping, TCM-UGM) to Space-Time Block Code (STBC). The performance of this encoding scheme is investigated over Memoryless Rayleigh Fading (MRF) channel for throughput 2 bits/s/Hz. The simulation result, using 2/3 rate 16-state TCM-UGM encoder, two transmit antennas and two receive antennas, shows clearly that the proposed scheme outperforms the performance of the association TCM/STBC by 0.67 dB.