IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Space-Time Coding
A reconfigurable, power-efficient adaptive Viterbi decoder
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
A low power turbo/Viterbi decoder for 3GPP2 applications
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Parallel high-throughput limited search trellis decoder VLSI design
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
A hardware-efficient technique to implement a trellis code modulation decoder
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Systematic Expansion of Full Diversity Space-Time Multiple TCM Codes for Two Transmit Antennas
IEEE Transactions on Wireless Communications
IEEE Transactions on Information Theory
Combined array processing and space-time coding
IEEE Transactions on Information Theory
A simple transmit diversity technique for wireless communications
IEEE Journal on Selected Areas in Communications
The space-time trellis codes with improved performance for fading channels
International Journal of Internet Protocol Technology
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Space-time trellis code (STTC) has been widely applied to coded multiple-input multiple-output (MIMO) systems because of its gains in coding and diversity; however, its great decoding complexity makes it less promising in chip realization compared to the space-time block code (STBC). The complexity of STTC decoding lies in the branch metric calculation in the Viterbi algorithm and increases significantly along with the number of antennas and the modulation order. Consequently, a low-complexity algorithm to mitigate the computational burden is proposed. The results show that more than 70%, 78%, and 83% of the computational complexity is reduced for 2 × 2, 3 × 3, and 4 × 4 MIMO configurations, respectively. Based on the proposed algorithm, a reconfigurable MISO STTC Viterbi decoder is designed and implemented using 0.18 µm 1P6M CMOS technology. The decoder achieves 11.14 Mbps, 8.36 Mbps, and 5.75 Mbps for 4-PSK, 8-PSK, and 16-QAM modulations, respectively.