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@Power/Bandwidth-Aware Reconfigurable FFT for OFDMA

DSP IC/IP Design for 3GPP LTE Wireless Communications. DSP IC/IP Design for 3GPP LTE Wireless Communications. 黃元豪助理教授研究成果. @Low-Complexity Space-Time Trellis Viterbi/Turbo Decoder. @Low-Complexity Space-Time Trellis Viterbi/Turbo Decoder.

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@Power/Bandwidth-Aware Reconfigurable FFT for OFDMA

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  1. DSP IC/IP Design for 3GPP LTE Wireless Communications DSP IC/IP Design for 3GPP LTE Wireless Communications 黃元豪助理教授研究成果 @Low-Complexity Space-Time Trellis Viterbi/Turbo Decoder @Low-Complexity Space-Time Trellis Viterbi/Turbo Decoder • • A geometric branch metrics calculation method is proposed to reduce the computation complexity in the Viterbi decoder algorithm for space-time trellis code (STTC) decoding. • • A great computational gain can be achieved with advantages in large number of antenna, high-order modulation, and high mobility with only a sacrifice of 3dB loss in coding gain. Branch Metric Calculation @Power/Bandwidth-Aware Reconfigurable FFT for OFDMA @Power/Bandwidth-Aware Reconfigurable FFT for OFDMA • Power-aware strategy is used to reduce the bit requirements in the MSB part. • Bandwidth-awave strategy is used to reduce the bit requirements in the LSDB part. Signal Histogram in different butterfly stage 3 1 2 4 5 7 6 Office: EECS R826 Lab: EECS R607 TEL: 5715131 ext 62213 Mail: yhhuang@ee.nthu.edu.tw URL: www.ee.nthu.edu.tw/~yhhuang total

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